Quickly estimate the weight of your lumber before you move or ship it.

Figure out exactly how much lumber you need for any project.

Turn tricky fractions into clean decimals
(and back) in seconds.

Predict how your wood will expand or contract with seasonal changes.

Easily solve compound angle and level calculations for perfect fits.

Find slopes, degrees, and angles—no guesswork.

Get accurate rise and run for safe, professional stair builds.

Convert inches, feet, and yards to mm, cm, and meters—and back.