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Speed & Feed Calculator

Calculate optimal cutting speeds (SFM), spindle RPM, and feed rates based on your material and tooling.

Turning Parameters
Configure your lathe operation

Hardness: 85-125 HB

Calculated Results

Surface Speed (SFM)

750

Range: 600 – 900

Spindle Speed (RPM)

5,730

Range: 4,584 – 6,875

Feed Rate

17.2 IPM

0.003 IPR

Formulas Used

RPM = (SFM × 12) / (π × D)

IPM = IPR × RPM

Note: These are starting recommendations. Adjust based on machine rigidity, tool condition, and specific application requirements.
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