Pitch to Stitches per Inch

Convert the pitch of a pricking iron to stitches per inch.

Tool Operation Area

Convert the pitch of a pricking iron to stitches per inch.

Hole pitch: 4 mm.

Result: 6.35 stitches per inch.

25.4 ÷ pitch in millimetres.

Schematic diagram of the calculation.

Is this an exact workshop measurement?

The result follows the formula shown above. Check measurements and allow for real-world variation.

Budget saddle-stitch thread with explicit assumptions or a measured seam sample.

Balance stitch holes across an edge with even end margins.

Cut a belt to the right blank length with correctly spaced holes.