Free Tools
Free Woodworking Calculators
- 01
Board Feet Calculator
Board feet and lumber cost from thickness, width, length and quantity. Takes fractions like 3/4 and 1 1/2.
- 02
Shelf Sag Calculator
How far a shelf will bow from its span, depth, thickness, wood species and load, with or without an edge band.
- 03
Wood Moisture Calculator
The moisture content wood settles at in your shop or house, from the temperature and humidity.
- 04
Wood Movement Calculator
How much a board, tabletop or panel grows and shrinks across its width as the moisture content changes.
- 05
Segmented Ring Calculator
The miter angle, segment lengths and strip width for one ring of a segmented bowl.
- 06
Segmented Bowl Designer
A whole segmented bowl up to 4 rings: its profile, a check on every glue joint and the cut list for each ring.
- 07
Lathe Speed Calculator
Starting, roughing and finishing RPM for a bowl blank or spindle from its diameter.
- 08
Bowl Blank Calculator
The biggest bowl a log gives you, flat rim, natural edge or end grain, and how many blanks it yields.
- 09
Sphere Turning Calculator
Every mark for turning a ball by the octagon method: the stock, the octagon lines and the groove diameter.
- 10
Plywood Cut List Calculator
How many sheets or boards up to 8 parts take, with the kerf, the waste and a drawing of every cut.
- 11
Miter Angle Calculator
The saw setting and each piece’s long and short point for a hexagon, octagon or any polygon box, frame or planter.