Thread Pitch Tpi Conversion
Calculator

Inputs

Thread pitch (mm)
1.27

Results

Thread pitch (mm)
1.27
Thread pitch (inches)
0.05
Threads per 25 mm
19.685039

Results

Thread pitch (mm)1.27
Thread pitch (inches)0.05
Threads per 25 mm19.685039

formula-map diagram

Thread pitch (mm)
1.27
Thread pitch (inches)
0.05
Threads per 25 mm
19.685039

Formula map

Formula

Pitch(mm) = 25.4 ÷ TPI

= 1.27

Note

This result is a simplified model; verify against your shop's own tolerances and material data before cutting.

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