Free calculators, no signup
Measure once.
Calculate right every time.
Five fast, accurate calculators for home projects — figure out exactly how much paint, tile, fencing, or firewood you need before you buy, and split the bill after.
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Paint Calculator
How many gallons of paint you need for a room, based on wall area and coats.
Open tool →Tile Calculator
How many tiles and how much material to cover a floor, with waste built in.
Open tool →Fence Calculator
Posts, rails, and pickets needed for a fence of any length.
Open tool →Firewood Calculator
Turn a wood stack's dimensions into cords, plus estimated cost.
Open tool →Tip Calculator
Work out the tip and split a bill evenly between any number of people.
Open tool →