Construction & Home

Area, volume, material estimators, paint calculators, roofing, and home improvement tools.

Air Changes Per Hour (ACH) Calculator

Calculate how many times the air in a room is replaced per hour based on airflow and room dimensions.

Air Conditioner Capacity Calculator

Calculate the required air conditioner cooling capacity based on room size.

Asphalt Tonnage Calculator

Estimate the total tons of asphalt required for a paving project based on dimensions and material density.

Board Foot Calculator

Estimate the volume of lumber in board feet using thickness, width, and length.

Brick Quantity Calculator

Calculate the total number of bricks required to build a rectangular wall based on wall and brick dimensions.

Cement Volume Calculator for Concrete Mix

Calculates the required cement volume based on total concrete volume and mix ratio.

Concrete Block Calculator

Estimates the total number of concrete blocks required to build a wall based on wall dimensions and block area.

Concrete Slab Weight Calculator

Calculate the total weight of a concrete slab based on its dimensions and concrete density.

Concrete Volume Calculator

Estimate the amount of concrete required for slabs, footings, or cylindrical columns with automatic unit conversions.

Cubic Feet Calculator

Calculate the volume of a rectangular space or object in cubic feet.

Cubic Yards Volume Calculator

Estimate volume in cubic yards based on length, width, and height in feet. Useful for concrete, soil, gravel, mulch, and other landscaping or construction materials.

Drywall Sheet Calculator

Estimate the number of drywall sheets required based on total wall area and sheet dimensions.

Fence Installation Cost Calculator

Calculate the total cost of installing a fence around a rectangular property based on perimeter and cost per linear foot.

Fertilizer Requirement Calculator

Calculate the total amount of fertilizer needed based on total area and application rate.

Gravel Weight Calculator

Calculate the total weight of gravel or aggregate material based on volume and material density.

House Construction Cost Calculator

Estimate the total cost of building a house based on total floor area and construction cost per square foot.

Lawn Fertilizer Calculator

Estimate the total pounds of fertilizer required based on lawn size and recommended application rate.

Paint Coverage Calculator

Estimates the total liters of paint required based on wall area, number of coats, and paint coverage per liter.

Paint Job Cost Calculator

Estimate the total cost of paint needed for a project based on area, coverage, and price per gallon.

Pond Liner Size Calculator

Estimate the required liner area for a rectangular pond including depth coverage on all sides.

Pool Chlorine Requirement Calculator

Calculate how much chlorine (in grams) is needed to raise your swimming pool’s free chlorine level.

Pool Fill Time Calculator

Estimate how long it will take to fill a rectangular swimming pool based on dimensions and water flow rate.

Pool Pump Turnover Time Calculator

Calculate how many hours it takes for your pool pump to circulate the entire pool volume once.

Rainwater Harvesting Potential Calculator

Estimates the total annual rainwater that can be collected from a roof based on area, rainfall, and runoff coefficient.

Rebar Weight Calculator

Calculate the total weight of reinforcing steel (rebar) based on total length and weight per meter.

Rectangular Swimming Pool Volume Calculator

Calculate the total volume of a rectangular swimming pool in cubic meters.

Roof Pitch Calculator

Calculates the roof slope (pitch) based on vertical rise and horizontal run.

Roof Snow Load Calculator

Calculate the snow load on a roof based on snow depth and snow density.

Room Heating BTU Calculator

Estimates the heating power required for a room based on its volume and desired temperature increase.

Round Swimming Pool Volume Calculator

Calculates the water volume of a round (cylindrical) swimming pool using diameter and water depth.

Shipping Container Internal Volume Calculator

Calculates the total internal volume of a shipping container in cubic meters.

Stair Riser Height Calculator

Calculate the height of each stair riser based on total vertical rise and number of steps.

Stair Stringer Length Calculator

Calculate the diagonal length of a stair stringer using total rise and total run based on the Pythagorean theorem.

Tile Quantity Calculator

Estimates the number of tiles required to cover a rectangular floor or wall area.

Topsoil Calculator

Estimate the amount of topsoil needed in cubic yards for a rectangular area.

Volume to Weight Calculator

Calculates the weight of a material based on its volume and density.