All Free Woodworking Calculators
Browse all 120 free calculators across 11 categories. Every tool is free, works on any device, and requires no signup.
Calculate board feet, timber volumes, sheet goods, plank quantities, and lumber yields for your woodworking projects.
Board Feet Calculator
Calculate board footage from timber dimensions for lumber purchasing.
Timber Volume Calculator
Work out the volume of timber in cubic metres or cubic feet.
Sheet Goods Calculator
Calculate how many plywood, MDF, or chipboard sheets you need.
Plank Calculator
Work out the number of planks needed to cover a given area.
Wood Weight Calculator
Estimate the weight of timber based on species and dimensions.
Timber Cost Calculator
Calculate the total cost of timber based on quantity and price per unit.
Saw Kerf Calculator
Account for material lost to saw blade kerf when cutting boards.
Rough to Finished Calculator
Calculate finished dimensions from rough-sawn timber after planing.
Wood Shrinkage Calculator
Estimate wood movement due to moisture content changes.
Lumber Yield Calculator
Calculate usable lumber yield from rough stock after defects and waste.
Plywood Layup Calculator
Plan custom plywood layups with veneer count, thickness, glue area, and press times.
Green Wood Shrinkage Calculator
Predict shrinkage dimensions when drying green wood to a target moisture content.
Board Foot Calculator
Calculate board footage from lumber dimensions for purchasing with cost and waste estimates.
Timber Weight Calculator
Estimate timber weight based on species, dimensions, quantity and moisture content.
Wood Drying Time Calculator
Estimate drying time for timber based on species, thickness, moisture content and drying method.
Wood Movement Gap Calculator
Calculate expected seasonal wood movement and recommended expansion gaps for panels and tabletops.
Plywood Cut List Calculator
Calculate number of plywood sheets needed from a list of required panel sizes.
Calculate dimensions and spacing for dovetails, mortise and tenon, box joints, dowels, and other woodworking joints.
Dovetail Calculator
Calculate dovetail pin and tail spacing for hand-cut or machine joints.
Mortise and Tenon Calculator
Work out mortise and tenon dimensions based on timber size.
Box Joint Calculator
Calculate finger joint spacing and dimensions for box construction.
Dowel Spacing Calculator
Determine optimal dowel positions and spacing for edge joints.
Biscuit Joint Calculator
Calculate biscuit size and spacing for panel and edge joints.
Pocket Hole Calculator
Determine pocket hole screw size and spacing for face-frame joinery.
Bridle Joint Calculator
Calculate bridle joint dimensions for frame construction.
Lap Joint Calculator
Work out lap joint dimensions and material removal for frame joints.
Tongue and Groove Calculator
Calculate tongue and groove dimensions for panel and flooring joints.
Spline Joint Calculator
Determine spline dimensions and groove depth for reinforced mitre joints.
Polygon Angle Calculator
Calculate mitre and bevel angles for polygonal builds like planter boxes and frames.
Dovetail Spacing Calculator
Calculate dovetail tail and pin spacing, slope ratio, and layout marks for hand-cut joints.
Calculate coverage for stains, varnishes, paints, oils, and other wood finishes. Plan sanding schedules and drying times.
Wood Stain Calculator
Calculate how much wood stain you need based on surface area and coats.
Varnish Coverage Calculator
Work out varnish quantities for floors, furniture, and woodwork.
Paint Coverage Calculator
Calculate paint quantities for wood surfaces including primer coats.
Oil Finish Calculator
Estimate oil quantities for Danish oil, tung oil, and linseed finishes.
Wax Coverage Calculator
Calculate wax quantities for furniture and wood surface finishing.
Shellac Calculator
Work out shellac flake and methylated spirit ratios for French polishing.
Lacquer Calculator
Calculate lacquer quantities and thinner ratios for spray finishing.
Wood Filler Calculator
Estimate wood filler quantities for grain filling and repairs.
Sanding Schedule Calculator
Plan grit progression and sandpaper quantities for wood preparation.
Finish Drying Time Calculator
Estimate drying and curing times based on finish type and conditions.
Stain Coverage Calculator
Calculate wood stain quantity based on surface area, wood type, porosity, and number of coats.
Calculate drill speeds, blade settings, dust collection needs, and workshop layout dimensions for safe and efficient work.
Drill Bit Size Calculator
Find the correct drill bit size for screws, dowels, and pilot holes.
Router Bit Speed Calculator
Calculate safe router speeds based on bit diameter and material.
Sandpaper Grit Calculator
Plan grit sequences and calculate sandpaper sheet quantities.
Clamp Pressure Calculator
Determine clamp force and number of clamps for glue-ups.
Blade Height Calculator
Calculate optimal table saw blade height for through and partial cuts.
Table Saw Fence Calculator
Work out fence positions for ripping stock to width including kerf.
Band Saw Blade Length Calculator
Calculate replacement blade length from wheel diameter and centre distance.
Lathe Speed Calculator
Determine safe lathe RPM based on workpiece diameter and material.
Dust Collection Calculator
Calculate CFM requirements and duct sizing for workshop dust extraction.
Workshop Layout Calculator
Plan machine clearances and workflow spacing for your workshop.
Dust Extraction Calculator
Calculate dust extraction CFM, pipe diameter, static pressure, and filter area for workshop systems.
Calculate shelf spans, drawer dimensions, table proportions, and ergonomic measurements for furniture projects.
Shelf Span Calculator
Calculate maximum shelf span before sagging based on material and load.
Drawer Slide Calculator
Work out drawer and slide dimensions for smooth-running drawers.
Table Leg Calculator
Calculate table leg dimensions and taper angles for stable tables.
Chair Seat Height Calculator
Determine ergonomic chair dimensions based on user height.
Bookcase Calculator
Calculate shelf spacing, material quantities, and dimensions for bookcases.
Cabinet Door Calculator
Work out cabinet door dimensions and overlay calculations.
Drawer Box Calculator
Calculate drawer box dimensions and material for cabinet drawers.
Hinge Calculator
Determine hinge type, size, and placement for doors and lids.
Ergonomic Desk Calculator
Calculate desk height and dimensions based on user measurements.
Bed Frame Calculator
Work out bed frame dimensions and slat spacing for UK mattress sizes.
Drawer Pull Positioning Calculator
Calculate exact hole positions for centring drawer pulls, knobs, and cup handles.
Bookshelf Calculator
Calculate bookshelf materials and dimensions including shelf lengths, panel sizes, fixings and sag estimates.
Chair Angle Calculator
Calculate ergonomic chair dimensions including seat angle, back angle, leg splay and armrest height.
Bookshelf Sag Calculator
Calculate maximum span before shelf sag for given wood species, thickness, and load.
Calculate lathe speeds, bowl blank sizes, spindle dimensions, and tool selections for wood turning and carving projects.
Bowl Blank Calculator
Calculate bowl blank dimensions and wood required for turned bowls.
Spindle Turning Calculator
Work out spindle blank dimensions and lathe centre heights.
Wood Turning Blank Weight Calculator
Estimate the weight of turning blanks by species and dimensions.
Carving Gouge Calculator
Select the right gouge sweep and width for your carving project.
Relief Carving Calculator
Calculate wood blank dimensions and depth for relief carving panels.
Turning Tool Rest Calculator
Determine optimal tool rest height and distance from the workpiece.
Segmented Turning Calculator
Calculate segment angles, ring diameters, and piece counts for segmented turning.
Turning Speed Calculator
Calculate safe RPM for wood turning based on blank diameter and balance.
Wood Bending Calculator
Calculate minimum bend radius, kerf spacing, laminate strip count and steaming time for wood bending.
Calculate glue quantities, screw sizes, nail gauges, and fastener spacing for strong, reliable woodworking joints.
Wood Glue Calculator
Calculate PVA and polyurethane glue quantities for edge and face joints.
Screw Size Calculator
Determine the correct screw gauge, length, and pilot hole for wood joints.
Nail Size Calculator
Select the right nail type, gauge, and length for your woodworking task.
Bolt Size Calculator
Calculate bolt diameter, length, and washer requirements for timber connections.
Epoxy Mix Calculator
Calculate resin and hardener quantities for two-part epoxy mixing.
Glue Spread Calculator
Work out the correct glue spread rate for optimal bond strength.
Fastener Spacing Calculator
Calculate optimal screw or nail spacing to avoid splitting.
Wood Plug Calculator
Determine plug sizes and quantities for concealing screw holes.
Screw Pilot Hole Calculator
Calculate correct pilot hole, clearance hole, and countersink sizes for wood screws.
Nail Gun Selection Calculator
Calculate correct nail length, gauge and type for your material thickness, substrate and connection type.
Calculate box dimensions, mitre angles, hinge placements, dividers, and veneer quantities for box and case projects.
Box Dimension Calculator
Calculate material dimensions for box sides, base, and lid from desired internal size.
Mitre Box Calculator
Work out mitre joint dimensions and material lengths for box corners.
Lid Fit Calculator
Calculate lid dimensions and clearance for tight-fitting box lids.
Hinge Placement Calculator
Determine hinge positions and mortise dimensions for box lids.
Divider Calculator
Calculate divider dimensions and slot positions for compartmented boxes.
Inlay Calculator
Work out inlay recess dimensions and material quantities for decorative work.
Veneer Calculator
Calculate veneer sheet quantities for box and panel veneering.
Edging Calculator
Work out edge banding lengths and quantities for panel edging.
Lining Calculator
Calculate fabric or felt quantities for lining boxes and cases.
Box Volume Calculator
Calculate internal and external volumes for storage box design.
Picture Frame Calculator
Calculate moulding lengths, glass size, mat board and backing dimensions for picture frames.
Calculate decking boards, joist spacing, pergola dimensions, fence panels, and outdoor furniture for garden projects.
Decking Board Calculator
Calculate the number of decking boards, screws, and joist hangers needed.
Deck Joist Calculator
Work out joist sizes, spacing, and quantities for a deck subframe.
Pergola Calculator
Calculate timber quantities for pergola posts, beams, and rafters.
Fence Panel Calculator
Work out fence panel, post, and gravel board quantities for a boundary.
Garden Bench Calculator
Calculate timber quantities and dimensions for a garden bench build.
Planter Box Calculator
Work out timber and liner quantities for raised planter box construction.
Gate Calculator
Calculate timber and hardware for garden and driveway gate construction.
Outdoor Table Calculator
Calculate material quantities for outdoor table and bench sets.
Post Foundation Calculator
Determine post hole depth, concrete quantities, and post sizes.
Timber Treatment Calculator
Calculate preservative and treatment quantities for outdoor timber.
Deck Board Spacing Calculator
Calculate optimal board spacing, number of boards, and total material for decking.
Calculate angles, diagonals, tapers, radii, arcs, and compound angles for precise woodworking layouts.
Angle Calculator
Calculate angles for mitres, bevels, and polygon joints in woodworking.
Diagonal Calculator
Work out diagonal measurements for squaring up frames and cabinets.
Taper Calculator
Calculate taper angles and jig settings for tapered legs and wedges.
Radius Calculator
Find radius from chord and height measurements for curved work.
Arc Calculator
Calculate arc lengths, rise, and radius for curved woodworking pieces.
Compound Angle Calculator
Work out compound mitre and bevel angles for angled joinery.
Wood Expansion Calculator
Calculate seasonal wood movement for proper gap allowances.
Board Layout Calculator
Optimise part placement on sheet goods to minimise waste.
Cut List Optimiser
Optimise cutting patterns to maximise yield from standard boards.
Material Waste Calculator
Calculate waste percentages and material efficiency for projects.
Useful woodworking reference guides, size charts and species data.
Wood Screw Size Guide
Screw gauge numbers with diameter in mm, pilot hole sizes for softwood and hardwood, and common lengths.
UK Timber Sizes
Standard UK sawn, CLS and planed (PAR) timber dimensions and common lengths stocked by merchants.
Wood Joint Types
Compare common woodworking joints by strength, difficulty, tools needed and best applications.
Wood Species Chart
Properties of common woodworking timbers including Janka hardness, density, workability and typical uses.
Why Use WoodCalcs?
Every calculator on this page is completely free, requires no signup, and works on any device. Get accurate results instantly with clear breakdowns you can trust.
WoodCalcs gives you 120+ specialist calculators across 11 categories. Results include detailed breakdowns and let you input your own prices for cost estimates tailored to your needs.