Woodworking Calculators
Last updated: October 2026
Wood Drying Time Calculator
Estimates the air-drying time for freshly sawn lumber in days, based on thickness, wood species, local climate, and how the stack is built.
Wood Shrinkage Calculator
Predict the dimensional change of a wood board as moisture content drops from initial to final equilibrium, using the species-specific shrinkage rate.
Wood Stain Coverage Calculator
Calculate how many quarts of wood stain or finish you need based on surface area, number of coats, and product coverage rate.
Wood Expansion Calculator
Estimate how much a wood board will expand or contract across its width as humidity (and therefore moisture content) changes.
Wood Finish Coverage Calculator
Calculate the exact volume of varnish, oil, stain, or lacquer needed for a woodworking project.
Wood Glue Coverage Calculator
Estimate how much wood glue you need for lamination or edge-joining projects.
Circular Saw Blade Speed Calculator
Calculate the tip (peripheral) speed of a circular saw blade from its diameter and motor RPM in feet per minute.
Dovetail Angle Calculator
Find the traditional dovetail joint angle for softwood or hardwood based on standard woodworking practice.
Miter and Bevel Cut Calculator
Computes the exact miter and bevel angles for picture frames, polygon frames, and crown molding joints.
Dovetail Joint Calculator
Calculates tail and pin spacing for hand-cut dovetail joints given board width, thickness, angle, and pin ratio.
Dado Blade Width Calculator
Compute the per-pass blade width to set on your saw when cutting a dado that requires multiple passes to reach the target groove width.
Table Saw Blade Height Calculator
Find the table saw blade height for a given material thickness, tooth count and cut type, keeping blade exposure above the stock to the minimum that still clears chips.
Mortise and Tenon Calculator
Calculates tenon thickness as a fraction of the stock thickness (one-third by default), rounded to the nearest 1/16 inch.
Dust Collection CFM Calculator
Calculates the minimum CFM (cubic feet per minute) airflow required for effective dust collection, accounting for tool type, duct length, bends, and flexible hose.
Wood Movement Calculator
Predict how much a wood board will expand or contract in width when relative humidity changes, helping woodworkers plan for seasonal movement and avoid joint failure.
Wood Glue Clamp Time Calculator
Estimate the recommended clamp time for PVA / Titebond-style wood glue given your shop temperature, humidity, and how thick you apply it.
Router Speed Calculator
Find the optimal RPM for your router bit based on bit diameter, material type, and cut type.
Miter & Bevel Angle Calculator
Calculate miter and bevel angles for flat frames, pyramid structures, and angled polygon assemblies given the number of sides and frame type.
Dowel Joint Strength Calculator
Estimate the load capacity of a dowel joint given dowel diameter, penetration depth, number of dowels, wood species strength, and a safety factor.
Board Feet Calculator
Calculate board feet for lumber from thickness, width and length (in inches or feet), times the number of boards, with an optional waste allowance.
Table Sag Calculator
Estimates the mid-span deflection of a table top or shelf under a given load using beam-bending theory.
Dado Depth Calculator
Find the ideal dado or groove depth for cabinet and shelf joints based on material thickness and load.
Router Bit Speed Calculator
Calculate the recommended router speed in RPM for a given bit diameter and material, preventing burning, tearout, and bit damage caused by running too fast or too slow.