Board feet, cut lists, angles, circles, conversions and sheet goods, calculated in your browser.
Woodworking Calculator gathers the math that comes up at the lumberyard and at the bench. Use the Board Feet tab to find how much hardwood a project needs, the Lumber & Cuts tab to put a price on it and plan the cuts, the Angles tab for miters and compound cuts, the Circles tab for round tops and curved parts, the Conversions tab for unit and fraction changes, and the Square Feet tab for floors, panels and plywood. It is built for hobbyists, furniture makers and anyone pricing a build.
All results come from standard formulas computed in your browser: the board foot formula (thickness × width × length ÷ 12), percentage waste allowances you set yourself, plane geometry for polygons, circles and arcs, and exact length conversion factors. There is no outside data feed. Prices are whatever you enter.
No. There is no sign-up and the calculators run entirely in your browser, so your measurements are not sent to a server.
Multiply thickness in inches by width in inches by length in feet, then divide by 12. The Board Feet tab does this for you and also handles a quantity of identical pieces.
Many woodworkers add 10 to 15 percent for ordinary projects and more for rough or defect-prone lumber. The waste factor fields are there so you can enter your own figure.
Yes. Enter your blade's kerf (the default is 0.125 inch) and the optimizer allows for it between cuts on each board.
Yes. The settings panel at the top of the page switches units, and you can show results as fractions or decimals.
The formulas are standard, but real boards vary and tools have tolerances, so always verify measurements against your plans before cutting.