Stitching Hole Spacing Calculator
Calculate the number of stitching holes and optimal spacing for leather seams. Enter seam length, pricking iron spacing, and desired stitches per inch.
Inputs
Results
Total Holes
78
Effective SPI
6.4 stitches/in
How to Use This Calculator
- Enter the seam length in inches to be stitched.
- Set the stitch spacing in stitches per inch (5-7 SPI for saddle stitch).
- Review the total number of stitching holes to punch.
- Use a pricking iron or stitching chisel matching your SPI to punch the holes.
- Mark the seam line with a wing divider at the appropriate distance from the edge before punching.
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