Button Spacing Calculator
Use known measurements to calculate a practical button spacing result. The tool keeps units consistent and shows where real material behaviour may change the answer.
Results appear here with units and a practical allowance.
How the estimate works
The calculator applies the displayed measurements directly and keeps all values in the unit you enter. Round purchasing quantities upward rather than downward.
Worked example
Enter the sample values already shown, calculate, then replace one value at a time with your own. This makes an accidental unit change easier to spot.
Before relying on the number
This is a planning estimate. Fibre, stitch, fabric direction, washing and finishing can alter real consumption or size; test a representative sample.
Read the related guide →