Woodworking calculators
Free, no-signup calculators for the wood shop — lumber math, sheet layouts, epoxy, shelves and machine settings. Everything runs in your browser; nothing is uploaded.
Tools
Board foot calculatorTally board feet from thickness, width and length — with price per bf, species weight and linear/square feet conversions.Cut list optimizerPack parts onto plywood sheets with kerf, trim and grain direction — printable cutting layouts, no signup.Epoxy resin calculatorRiver tables, deep pours and seal coats: liters, fl oz, gallons, A:B mix parts, layer limits and cost.Shelf sag calculatorSpan, thickness, material and load in — initial and long-term creep sag out, with an L/240 verdict.Router bit speed calculatorRecommended max RPM per bit diameter, rim speed in fpm, over-speed warning and a printable speed chart.Crown molding angle calculatorMiter and bevel saw settings for any corner and spring angle — lying flat or nested — plus frame miters.