Door Hinge Jig Calculator

Use this simple hinge jig calculator to work out quickly the internal size you need to make your jig so you can use a router to machine your hinge cut outs.

Premium hinge leaf measurements:

3″ the leaf is generally 76mm x 19mm | 4″ the leaf is generally 102mm x 30mm

Enter Hinge Leaf Length mm
Enter Hinge Leaf Width mm
Enter Router Guide Bush Diameter mm
Enter Router Cutter Diameter mm
Collet – Cutter Difference mm
Collet – Cutter Difference ( Half ) mm
Hinge Jig Opening Length – Internal dimension for router guide to follow mm
Hinge Jig Opening Width – Internal dimension for router guide to follow mm