Lathe conversions

RPM ↔ SFM and IPM ↔ IPR for quick inch/metric conversion.

SFM = π · D · n / 12. IPM = IPR · n. Conversions: 1 in = 25,4 mm, 1 ft/min ≈ 0,3048 m/min.

Note: all cutting and material values are guide values. The tool or machine manufacturer's recommendations are decisive.

The calculator also runs in the workshop without a connection: app and desktop version