Lathe Speed Calculator
Calculate the optimal lathe RPM for your workpiece based on diameter and wood type. Get roughing and finishing speed recommendations.
Inputs
Results
Optimal RPM
382
How to Use This Calculator
- Enter Workpiece Diameter and Material Type.
- Review the Optimal RPM result.
- Use Surface Feet/Min (SFM) and Roughing RPM to inform your decision.
- Use the chart to visualize the results and explore different scenarios by adjusting inputs.
How the result changes with Workpiece Diameter
| Workpiece Diameter | Optimal RPM |
|---|---|
| 2.85 | 1,072 |
| 8.72 | 350 |
| 16 | 191 |
| 22 | 139 |
What each input means
- Workpiece Diameter
- Diameter of the workpiece at its widest point
- Material Type
- 1=Softwood (800 SFM), 2=Hardwood (600 SFM), 3=Green/wet wood (400 SFM)
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