Calculator · Joinery & fasteners
Dovetail Spacing Calculator
The free Dovetail Spacing Calculator answers one question: Even tail and pin layout for hand-cut dovetails. Enter your numbers in inches or millimeters and the result updates instantly in your browser, with no sign-up and no app to install. Use it on your phone at the bench, then copy or print the result for your cut list.
Set the board width, number of tails and the pin width at its narrowest point; we split the rest evenly.
Dovetail Spacing
- Tail width (wide side)
- 1 1/2″
- Half-pins at edges
- 3/8″
- Pin-to-pin centers
- 1 7/8″
- Pins incl. half-pins
- 4
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Which other joinery & fasteners calculators help with this project?
- Dovetail Angle Calculator — Convert dovetail ratios to degrees.
- Mortise & Tenon Size Calculator — Tenon thickness, shoulders and length.
- Nail Size (Penny) Calculator — Penny size and length for your board.
- Box Joint (Finger Joint) Calculator — Finger count and exact width for full fingers at both edges.
- Pocket holes vs. dowels vs. biscuits — Related guide
What you'll need for this project
Tools
Screws & hardware
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Build it · Intermediate · 1 day
Download the complete plan with cut list and materials list (PDF)
Dovetail Practice Box — A small through-dovetailed box—perfect for learning layout and sawing. Drawings, cut list with board-foot totals, hardware list and step-by-step instructions.