Construction calculators
164 calculators for sizing materials and estimating project quantities, from Omni Calculator.
Construction converters
Board Foot Calculator
Work out the volume of lumber in board feet from its thickness, width and length.
Cubic Yard Calculator
Check out this cubic yard calculator to work out the yardage of different shapes of volume.
Gallons per Square Foot Calculator
Use this gallon per square foot calculator to determine how many gallons of liquid fit one square foot over a given depth.
Size to Weight Calculator (Rectangular Box)
The size to weight calculator (rectangular box) evaluates the weight of a rectangular box.
Square Feet to Cubic Yards Calculator
Efficiently learn how to convert square feet to cubic yards with our powerful calculator. Achieve precise measurements effortlessly. Try now!
Square Footage Calculator
Utilize our free square footage calculator to determine the area of diverse property shapes in square feet (sq ft) accurately and effortlessly.
Square Yards Calculator
Use this square yards calculator to calculate the area in square yards and the cost of the material.
Construction materials
Aluminum Weight Calculator
Use this aluminum weight calculator to estimate the weight of your aluminum materials, no matter the shape or alloy.
Baluster Calculator
Use the baluster calculator to estimate how many balusters you will need for your railing.
Board and Batten Calculator
The board and batten calculator is a one-of-a-kind tool that helps you determine not only the material needed but also the number of boards, battens, and rows you need for your perfect-looking wall siding.
Brick Calculator
Use the brick calculator to make sure you never overspend (or under-order) on bricks (and mortar materials) again!
Decking Calculator
The decking calculator helps you estimate the cost of building a deck by calculating the price of boards and fasteners needed.
DIY Shed Cost Calculator
Use our DIY shed cost calculator to estimate the cost of building a DIY shed. It'll help you decide on its size, roof type, and overhang length, and find the span of the roof rafter required.
Drywall Calculator
The drywall calculator determines the number of drywall panels you need to install in a room.
Fire Glass Calculator
Need to find how much fire glass you need for your fire pit or fireplace? Our fire glass calculator can help you with that. Try it now!
Framing Calculator
With our framing calculator, you can easily compute the number of studs needed to build a given section of wall.
French Drain Calculator
Find out how much gravel, how many pipes, and optional filter fabric you need for any French drain project using this French drain calculator.
Glass Weight Calculator
Find the weight of any volume of glass material made from the most common glass types in production today using this glass weight calculator.
Gravel Calculator
The gravel calculator finds the volume, mass and price of gravel used during earthworks.
Landscape Rock Calculator
Use this landscape rock calculator to find out how much material your yard needs. Enter your area and depth to instantly get the volume in cubic yards.
Limestone Calculator
Find the volume and weight of limestone rocks you will need for your project using this easy-to-use limestone calculator.
Log Weight Calculator
This log weight calculator will help you estimate the weight of a freshly cut tree using its "green" density and volume.
Lumber Calculator
Use our lumber calculator to make math easy for your construction projects and carpentry work!
Metal Weight Calculator
Use this metal weight calculator to quickly figure out the weight of construction materials.
Pipe Weight Calculator
This pipe weight calculator can help you quickly determine the weight of a pipe, whether made of metal (like steel, brass, or aluminum) or plastic (like PVC).
Plate Weight Calculator
This plate weight calculator will help you determine the weight of a plate-shaped material of any area, thickness, and density.
Quiz: Pipe Weight Calculator
Take this quiz to test your intuition about pipe weight and linear density.
Quiz: Stone Calculator
Test your knowledge of building stones, including strength, hardness, stone volume calculations, and more, with our stone quiz!
Rebar Calculator
Use the rebar calculator to find out how many rebars are needed for a concrete slab and how much it will cost.
Retaining Wall Calculator
Use the retaining wall calculator to estimate both the amount of materials needed and the price of your project.
Rip Rap Calculator
Find the average diameter of rocks to use for your embankment with this rip rap calculator.
River Rock Calculator
Use our river rock calculator to estimate how much river rock you need for your project. You can also find out its total cost.
Rolling Offset Calculator
Find a pipe rolling offset's travel and run values using this rolling offset calculator.
SAG Calculator
Our SAG calculator can help you determine the sag of a surface based on the radius of curvature and diameter.
Sand Calculator
Use our sand calculator to determine the amount of sand you need and how much will it cost you.
Sealant Calculator
Use this sealant calculator to determine how much sealant (silicone, polyurethane, or any other sealant materials) you will need for your filling or sealing project.
Sonotube Calculator
Use this Sonotube calculator to estimate the amount and cost of the concrete you will need when building round columns using Sonotube formworks.
Spindle Spacing Calculator
Use this spindle spacing calculator to find two options for spindle spacing when constructing spindled railings for stairs and decks.
Spiral Staircase Calculator
Use this spiral staircase calculator to find the dimensions of a spiral staircase and the measurements of its treads for your DIY construction needs.
Steel Plate Weight Calculator
This steel plate weight calculator will help you determine the weight of a steel plate of any area, thickness, and density.
Steel Weight Calculator
Use this steel weight calculator to find the weight of any steel material with a known dimensions and density.
Stone Weight Calculator
The stone calculator finds the area, volume, weight, and cost of both circular and rectangular stones.
Tile Calculator
Estimate your tile cost with precision using our tile square footage calculator. Get accurate pricing for your project. Try it now!
Tonnage Calculator
This tonnage calculator can determine the weight in tons of certain aggregate materials depending on their unit weights and the volume they occupy.
Vinyl Fence Calculator
Vinyl fence calculator estimates the amount of prefabricated components you need for your next fencing project.
Vinyl Siding Calculator
Check out this vinyl siding calculator and find out how many vinyl panels you need and how much you should pay in total for the vinyl siding of your house.
Wall Square Footage Calculator
Our wall square footage calculator is a simple tool that allows you to calculate the area of yours walls and the amount of wallcovering needed to cover them.
Cement and concrete
Cement Calculator
This cement calculator will help you find the amount of cement you need for any volume and mix ratio of concrete or mortar mix.
Concrete Block Calculator
Use this concrete block calculator to estimate the number of blocks needed to build a wall with specific dimensions, as well as to calculate the costs.
Concrete Block Fill Calculator
This concrete block fill calculator will help you determine how much concrete or mortar is needed to fill the void spaces inside a hollow concrete block wall of any size.
Concrete Calculator
Concrete calculator – evaluate the amount of concrete and cement needed for a slab block.
Concrete Column Calculator
This concrete column calculator helps you find the number of premix concrete bags you need to buy for your building project and determine the amount of ingredients you would need if you decided to mix your own concrete.
Concrete Estimator - Tube
Concrete calculator - tube evaluates the amount of concrete and cement needed for a tube block.
Concrete Stairs Calculator
Use this concrete stairs calculator to find the volume of concrete you'll need for a concrete stairs project.
Concrete Weight Calculator
Use the concrete weight calculator to see how much a specific volume of concrete weighs.
Grout Calculator
This grout calculator will help you determine the amount of tile grout needed for your next tiling project.
Hole Volume Calculator
The hole volume calculator finds the volume of a circular or rectangular hole. It also calculates the volume of concrete needed for concrete holes, considering the loss in the concreting process.
Mortar Calculator
This mortar calculator is a tool that will come handy during any wall construction project. Use it to calculate the number of mortar bags needed.
Thinset Calculator
Use this thinset calculator to find how much thinset you need for any tiling project.
Roofing
Birdsmouth Cut Calculator
Use this birdsmouth cut calculator to find the different essential dimensions and measurements on a rafter when creating a birdsmouth cut.
Gambrel Roof Calculator
Use this gambrel roof calculator to determine the constructional dimensions of a gambrel roof, given its upper and lower roof pitch, building width and length, and other parameters.
Metal Roof Cost Calculator
Find out how many metal panels are needed for your roof and calculate their cost in one go using this metal roof cost calculator.
Rafter Length Calculator
Calculate rafter length, roof truss dimensions, and roofing costs with our easy-to-use rafter length calculator.
Roof Pitch Calculator
The roof pitch calculator finds the length of the rafter and the roof slope (in degrees and in percent).
Roof Shingle Calculator
With this roof shingle calculator's help, you will be able to quickly estimate how many bundles of shingles you need for your roof.
Roof Truss Calculator
The roof truss calculator is a handy tool that will help you estimate both the rafter length and the number of trusses needed for your roof.
Roofing Calculator
The roofing calculator lets you estimate the area and cost of your roof.
Snow Load Calculator
When should I shovel snow off my roof? What is the weight of the snow covering my house? Find the answers to these questions with our snow load calculator!
Driveways
Asphalt Calculator
This asphalt calculator determines the amount of asphalt needed for any asphalt pavement project and explains the basics of asphalt pavement installation.
Concrete Driveway Cost Calculator
Need to build a concrete driveway? Are you struggling with all these material and cost-related calculations? The concrete driveway cost calculator is here to estimate all the costs and amounts of materials required to build a concrete driveway.
Crushed Stone Calculator
The crushed stone calculator helps find the right amount of crushed stone or gravel to fill in the required area.
Gravel Driveway Calculator
Calculate gravel needed for your driveway and estimate costs with our Gravel Driveway Calculator — quick and easy!
Road Base Calculator
Use our road base calculator to calculate the amount of gravel required to construct a road base.
Home and garden
AC Tonnage Calculator
Use our AC tonnage calculator to accurately determine the right air conditioner size, with help from HVAC load calculation and Manual J calculation.
Air Changes per Hour Calculator
With the air changes per hour calculator (ACH) you can determine how often your air device exchanges the air in a room.
Air Conditioner BTU Calculator
Planning to buy an air conditioner for your room? This air conditioner room size calculator will help you choose the right air conditioner size, so you will be effectively and efficiently cooling your room.
Arch Calculator
Use this arch calculator to help you determine the focus points of an ellipse. With these, you'll be able to easily draw the perimeter of the rounded part of an elliptical arch.
Boiler Size Calculator
The boiler size calculator is here to help you know what size boiler to buy for your home.
Carpet Calculator
Use this carpet calculator to estimate the costs of your dream carpet.
Chicken Coop Size Calculator
Use this chicken coop size calculator to find out how much chicken coop space to provide your chickens to make them happy.
Clearance Hole Calculator
The clearance hole calculator helps you to quickly calculate the diameter of a hole through an object or substrate for a bolt or a screw using its thread and head diameters.
Deck Stain Calculator
With the deck stain calculator, you can easily estimate the volume of stain that you need to cover your deck.
Epoxy Calculator
Our epoxy calculator will help you find the right amount of epoxy resin required to coat your desired surface.
Fence Calculator
The fence calculator determines how much materials you will need to buy to build a fence on your own.
Fence Post Depth Calculator
Use this fence post depth calculator to determine the ideal depth for your fence posts.
Floor Area Ratio Calculator
Determine the various area indices for your new home using the floor area ratio calculator.
Flooring Calculator
The flooring calculator finds the amount and cost of the flooring material for your renovation project.
Furnace Size Calculator
Find the furnace BTU sizing that fits your needs with this furnace size calculator.
Heat Loss Calculator
Use the heat loss calculator to estimate the power of a heater needed to keep your room at a comfortable temperature.
Hoop House Calculator
Use this hoop house calculator to find the surface area and the heater size for your greenhouse.
Ladder Angle Calculator
The ladder angle calculator helps you to measure the angle between the structure and the ladder.
Mulch Calculator
Estimate how much mulch you need to cover a garden bed to a chosen depth.
Paint Calculator
Paint calculator helps you calculate the amount and cost of paint needed to paint the walls of a room.
Paver Calculator
Are you planning to paver your patio? The paver calculator is just what you need. Use it to estimate how much material you ought to buy for your project and check the potential costs.
Paver Sand Calculator
Use our paver sand calculator to calculate the amount of sand required to form a stable layer beneath the pavement.
Plant Spacing Calculator
Find how many plants fit in a bed at a given spacing.
Plywood Calculator
Need to cover a floor or a wall with plywood? Check out the plywood calculator that estimates the required number of plywood pieces and their cost.
Ramp Calculator
If you're wondering how to design a ramp, here we come with an amazing ramp calculator.
Rectangle Fence Perimeter Calculator
Use our rectangle fence perimeter calculator to determine the length of the rectangular fence and tips about perimeter fences.
Shiplap Calculator
Our shiplap calculator will help you estimate the number of shiplap boards needed, as well as the total cost of your decorating project.
Siding Calculator
This siding calculator finds the square footage and cost of siding for your house.
Sod Calculator
Estimate how much sod (turf) you need to cover a lawn area.
Soil Calculator
Estimate the volume and weight of soil needed to fill a bed or area.
Square Yard Calculator
With our square yard calculator, you can find the square yardage of your floor and the cost of covering it
Stair Calculator
The stair calculator helps you design comfortable stairs: it finds the stair stringer length, as well as the rise and run of individual steps.
Stair Carpet Calculator
Use this stair carpet calculator to determine the correct dimensions of carpet you will need to cover your stairs and how much it would cost.
Wainscoting Calculator
This wainscoting calculator will help you calculate the measurements and dimensions concerning your DIY wainscoting or board and batten project. We also explain the basics of wainscoting installation and some other information you might find useful.
Wallpaper Calculator
Wallpaper calculator finds the number of wallpaper rolls you need to buy for your room.
Water tanks and vessels
Fire Flow Calculator
Find the required fire flow with our fire flow calculator to easily estimate the amount of water needed to suppress fires effectively.
Gallons Per Minute Calculator (GPM)
Find out the water flow rate of your shower with this gallons per minute calculator (GPM).
Liters per Minute Calculator
The liters per minute calculator determines the volumetric flow rate in your pipes in liters per minute.
Pipe Volume Calculator
Use the pipe volume calculator to find the volume of a pipe and how much the liquid inside it weighs.
Pond Calculator
Need to estimate how much water you'll need to fill a pond and what size of pond liner to get for your pond? Try our pond calculator now to answer those questions.
Pool Calculator
This pool calculator finds out the amount of water that goes into a swimming pool of a specific size.
Round Pool Volume Calculator
The round pool volume calculator finds water volume and filling cost for round and oval pools with flat or sloped bottoms.
Tank Volume Calculator
Learn how to find the volume of different containers with this tank volume calculator.
Materials specifications
Beam Deflection Calculator
This beam deflection calculator will help you determine the maximum beam deflection of simply-supported or cantilever beams subjected to simple load configurations.
Beam Load Calculator
This beam load calculator will help you determine the support reactions acting on a simply supported beam.
Bending Stress Calculator
Use this bending stress calculator to help you find the bending stress on a beam of any typical cross-section and dimensions, given the bending moment it experiences.
Bolt Torque Calculator
The bolt torque calculator helps you make sure you tighten your bolts correctly.
Box Fill Calculator
Use this box fill calculator to find the correct size of electrical utility box to fit the conducting wires, grounding wires, and devices or equipment you would need to install and have it pass the National Electrical Code®.
Carbon Equivalent Calculator
You can determine the equivalent carbon content in steel using this carbon equivalent calculator.
CFM Calculator
Check our CFM calculator to find the required airflow in cubic feet per minute (CFM) for any room size, depending on its recommended air change per hour.
Door Header Size Calculator
Use this door header size calculator to find the correct lumber size for your door header or determine the maximum length that a piece of lumber for a door header can span.
Fence Stain Calculator
We designed the fence stain calculator to help you calculate how much stain you need for your next fence-staining project.
Floor Joist Calculator
Use this floor joist calculator to determine the number of floor joists you will need and how much they will cost. You can also use this calculator to determine the maximum allowable span a floor joist can be depending on its wood species, grade, size, and supported load.
Insulation Calculator
This insulation calculator will help you determine the R-value of a selected material at a given thickness or the total R-Value of an entire barrier or wall made of different layers of materials at their respective thicknesses.
Junction Box Sizing Calculator
Use this junction box sizing calculator to determine the recommended dimensions of a junction box depending on the number of straight and angle pulls entering it and meet the National Electrical Code®.
K-Factor Calculator
Use our K-factor calculator to determine the position of the neutral axis in the sheet of metal you are planning to bend.
Material Removal Rate Calculator
Find the rate at which material is being removed when turning, milling, and drilling using the material removal rate calculator.
Pitch Diameter Calculator
Use this pitch diameter calculator to find the basic, maximum, and minimum pitch diameter of ISO metric screw threads.
Punch Force Calculator
Use this punch force calculator to estimate the force required to punch a hole in materials.
Quiz: Beam Load Calculator
Are your engineering instincts sound? Take our quiz to test your knowledge of construction physics and beam loads.
Rivet Size Calculator
Use this rivet size calculator to determine the recommended pop or blind rivet size for your specified application.
Spindle Speed Calculator
Estimate the spindle speed and feed rate for lathe machining and milling operations using the spindle speed calculator.
Taper Calculator
Estimate the taper length and angle using the taper calculator.
Thread Calculator
Find out the different cross-sectional dimensions of any metric bolt's external thread and nut's internal thread using this thread calculator, given the thread pitch, basic major diameter, and tolerance class details of the threads.
Thread Pitch Calculator
Calculate the pitch of your threaded fastener very easily with this thread pitch calculator.
True Position Calculator
Use this true position calculator to assess whether the bore and shaft axis positions are within the tolerance limit.
Welding Calculator
Estimate the strength of weld joints using the welding calculator.
Wood Beam Span Calculator
Use this wood beam span calculator to check a wood beam of a particular size and length to see if it can support a given uniform linear load by comparing its allowable and required bending and shear stress.
More calculators
Angle Cut Calculator
Learn how to find angle cuts for knee bracing purposes and alike using the angle cut calculator.
Angle of Depression Calculator
This angle of depression calculator will help you solve the angle by which a line of sight deviates from the horizontal in a downward direction.
Board-on-Board Fence Calculator
This board-on-board fence calculator determines how many pickets, posts, sections, and rails your fence needs.
Bolt Circle Calculator
Estimate the location of holes in a circular pattern using the bolt circle calculator.
Bowl Segment Calculator
Use this bowl segment calculator to confidently measure and cut your precious wood pieces to their correct sizes to create perfectly fitting segments.
Concrete Cylinder Calculator
Use this concrete cylinder calculator to find the volume of concrete you need for your cylinder shape columns or posts.
Countersink Depth Calculator
The countersink depth calculator helps you determine the depth of a countersunk hole.
Elevation Grade Calculator
Elevation grade calculator determines the grade or slope of a specific earthen area, given its "rise" and "run".
Fence Cost Calculator
Use this fence cost calculator to estimate how much it would cost to build a picket fence.
Fence Estimate Calculator
Use this fence estimate calculator to determine how much fencing material you need.
Fence Material Calculator
Use this fence material calculator to know how many pickets, posts, and rails you need to build a fence and which is the correct separation between them.
Fence Picket Calculator
This picket fence calculator will help you estimate the number of pickets needed for your fence.
Lumber Weight Calculator
Our lumber weight calculator is the best tool to check the weight and volume of your planks and beams!
Miter Angle Calculator
This miter angle calculator will help you find the miter angles needed to make a tight miter joint for your next project.
Passive House Calculator
Check how close a building comes to the passive house energy standard.
Pea Gravel Calculator
Use the pea gravel calculator to estimate volume, weight, and cost for any project.
Post Hole Concrete Calculator
Use this tool to calculate the concrete your post-hole requires.
Privacy Fence Calculator
Use this privacy fence calculator to obtain the amount of material to build your privacy fence.
Round Pen Calculator
The round pen calculator helps you find the number of panels required for a round pen of a particular size.
Square Meter Calculator
Discover the area in square meters of anything with our easy-to-use square meter calculator!
Vertical Curve Calculator
Use the vertical curve calculator to calculate elevations of points on a vertical curve.
Vinyl Fence Cost Calculator
Quickly determine how much your vinyl fence will approximately be using this vinyl fence cost calculator.
Wood Fence Calculator
If you need to build a fence, but the numbers are getting over your head, ask our wood fence calculator for some help with the math!
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Disclaimer:
BMO (Building Materials Online) shall not be held responsible for any deviations or issues on costings and calculations that arise from usage of these tools. They should be used as working reference & guidelines and may not include all external factors affecting final results in your project.