Calculator collection

Woodworking & Carpentry Calculators

Plan sheet goods, finishes, cutting, joinery and workshop projects with practical woodworking calculators.

Blade Tip Speed CalculatorCalculate blade rim speed from blade diameter and spindle RPM.Board Foot CalculatorCalculate board feet from lumber thickness, width, length and quantity, with cubic-volume conversions.Cabinet CalculatorCalculate basic frameless cabinet-carcass panel dimensions from overall size and material thickness.Cabinet Door CalculatorCalculate cabinet door dimensions from opening size, overlay or inset reveal, door count and center gap.Cabinet Drawer CalculatorSize equal-height cabinet drawer fronts from an opening, reveals and gaps.Compound Miter CalculatorCalculate miter and bevel settings for two equal compound-miter pieces from the inside corner angle and workpiece tilt/spring angle.Crown Molding Angle CalculatorCalculate flat-on-saw miter and bevel settings for crown molding from wall corner angle and spring angle.Cut List OptimizerCreate an efficient cut layout for repeated linear parts or rectangular sheet parts.Dovetail CalculatorLay out equal dovetail tails from board width, tail count and chosen pin widths.Dowel Spacing CalculatorLay out a selected number of dowels evenly along a joint with equal end margins.Drawer Box CalculatorCalculate basic drawer-box outside dimensions and front/back part width from cabinet opening and slide clearances.Drawer Slide CalculatorFind a common side-mount drawer-slide length that fits the cabinet depth and estimate maximum drawer-box width.Epoxy Resin CalculatorCalculate epoxy pour volume and split the total between resin and hardener from a user-entered mix ratio.Face Frame CalculatorCalculate a simple two-stile/two-rail cabinet face frame and clear opening.Kerf CalculatorAccount for saw-blade kerf when cutting repeated equal-length pieces from stock.Lumber CalculatorCalculate lumber board feet, total volume and linear length from board dimensions and quantity.Miter Angle CalculatorCalculate equal miter cuts for a corner or a regular polygon.Mortise & Tenon CalculatorCalculate centered tenon and mortise dimensions from stock thickness, stock width and chosen tenon proportion.Picture Frame CalculatorCalculate 45° picture-frame rail long-point lengths and outside dimensions from the desired inside opening and molding face width.Pilot Hole & Drill Bit CalculatorLook up a starting pilot-hole drill size for common wood-screw gauges in softwood or hardwood.Plywood CalculatorCalculate plywood sheet quantity from project area, sheet dimensions and waste for woodworking or construction.Plywood Cut CalculatorEstimate how many plywood sheets are needed for rectangular parts using an efficient local layout heuristic.Pocket Hole Screw CalculatorLook up a common pocket-hole screw length and thread type from material thickness and material class.Segmented Bowl CalculatorCalculate segment miter angle and inner/outer segment lengths for a segmented turning ring.Shelf Pin Spacing CalculatorCalculate an evenly divided shelf-pin layout without exceeding a selected maximum spacing.Shelf Sag CalculatorEstimate midspan sag for a simply supported solid-wood shelf under a uniformly distributed load.Varnish CalculatorEstimate varnish quantity from project area, coats and product coverage in U.S. or metric units.Wood Finish CalculatorEstimate wood finish quantity from project area, coats and product coverage in U.S. or metric units.Wood Glue CalculatorEstimate wood glue quantity from glue-up surface area and the product’s stated coverage rate.Wood Movement CalculatorEstimate across-grain wood movement from species-average shrinkage values and a moisture-content change.Wood Shrinkage CalculatorEstimate dimensional shrinkage or swelling across the grain from species-average values and moisture content.Wood Stain CalculatorEstimate wood stain quantity from project area, coats and product coverage in U.S. or metric units.Wood Weight CalculatorEstimate lumber weight from dimensions, quantity, species-average density and moisture content.Woodturning CalculatorConvert between workpiece RPM and surface speed for a measured turning diameter.