Lathe Spindle Speed Calculator
Calculate recommended lathe RPM for a workpiece. Free, instant.
How to Use Lathe Spindle Speed Calculator
1
Enter workpiece diameter.
2
Enter desired surface speed.
3
Get recommended RPM.
Frequently Asked Questions
What SFM for woodturning?
Roughing: 500–700 SFM. Finishing: 800–1000 SFM. Lower for out-of-balance pieces.