Tools & Calculators

Free, fast calculators for construction math, estimating, and real estate finance. Works offline with JavaScript disabled.

Calculate the total square footage of your property by summing up individual rooms.

Calculate monthly mortgage payments and view the amortization schedule.

Calculate the amount of concrete needed for slabs, footings, and columns.

Determine how many gallons of paint you need for a room.

Calculate how many tiles you need based on area and tile size.

Calculate roof pitch based on rise and run.

Estimate required BTUs and Tons for cooling.

Calculate rise and run for stairs.

Estimate the weight of dimensional lumber.

Calculate 4x8 drywall sheets needed.