Feed Rate Calculator
Calculate the feed rate for machining operations based on spindle speed, number of teeth, and chip load.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Feed Rate Calculator
This calculator computes the feed rate (in/min or IPM) for machining operations using the formula:
Feed Rate = Spindle Speed × Number of Teeth × Chip Load
Step-by-Step Instructions
- Enter Spindle Speed (RPM) — e.g., 10000. Must be a positive number.
- Enter Number of Teeth — e.g., 2. Must be a positive integer (1 or more).
- Enter Chip Load — e.g., 0.005 (in/tooth or mm/tooth). Must be a positive number.
- Click "Calculate Feed Rate" or press Enter.
- The result displays the feed rate in in/min (IPM) with the formula breakdown.
Important Notes
- All inputs must be positive. Errors are highlighted in red.
- Units are imperial (inches). For metric, use mm/tooth; the result will be in mm/min.
- The calculator uses the exact formula:
RPM × Teeth × Chip Load.
Previous Results
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Frequently Asked Questions
Feed rate is the speed at which the cutter engages the workpiece, typically measured in inches per minute (IPM) or mm/min.
Feed rate = Spindle Speed (RPM) × Number of Teeth × Chip Load (in/tooth).
Chip load is the thickness of material removed by each cutting tooth per revolution, usually specified by the tool manufacturer.