Leathercraft Tools & Calculators
Free, practical tools for every leatherworker — convert leather weight to thickness, estimate hide yield and project cost, size a belt or strap, space your rivets, and cut the right length of thread.
Leather Weight → Thickness Calculator
Convert a leather weight in ounces to millimetres of thickness using the standard tannery conversion — match a supplier's listing to your pattern or caliper reading
Hide Yield Calculator
Estimate how many copies of a project a hide will yield from its usable square footage and the area one project needs — a quick check before you commit a hide to a pattern
Leather Project Cost Calculator
Multiply your project's leather area by the price per square foot for a materials-only cost estimate — price a commission or compare hides and suppliers
Belt & Strap Length Calculator
Add a buckle-and-tip allowance to a waist or fitting measurement to get the total strap length to cut — enough to thread the buckle and punch holes with room to spare
Rivet Spacing Calculator
Divide an edge or seam length by your desired rivet spacing to see how many rivets to set — an even, professional layout every time
Saddle Stitch Thread Calculator
Multiply your seam length by a thread factor to estimate how much waxed thread to cut — better a few inches spare than running short mid-seam