When to use this calculator
Recover nominal milling chip load from table feed and rotational speed. This nominal value is not a direct maximum-chip-thickness model for all engagements.
Explore the machining feeds, speeds & time calculators for other questions in this topic. For a related calculation, use the Machining Cost Calculator: Combine estimated machining time with an hourly rate and extra costs.
PUTTING IT INTO PRACTICE
Feed Per Tooth: a worked example
The values below are an illustrative example, not a recommendation. Replace them with measurements or assumptions that match your question.
| Input | Example value |
|---|---|
| Table feed (mm/min) | 200 |
| Effective teeth (integer) | 4 |
| Spindle speed (rpm) | 1,000 |
| Result | 0.05 mm/tooth |
- Check the input labels and enter the example values above.
- Apply the relationship: Feed per tooth = table feed/(teeth × rpm).
- The result is 0.05 mm/tooth, rounded for display.
How to interpret your result
This nominal value is not a direct maximum-chip-thickness model for all engagements.
Choose cutting speeds and feeds from suitable tooling and material guidance. These tools translate quantities rather than selecting safe cutting conditions. Effective diameter, engagement, machine limits and setup time need separate attention.
Frequently asked questions
Does the spindle-speed calculation recommend a cutting speed?
No. You supply the cutting speed. The tool converts it and a diameter into revolutions per minute.
When is the feed per tooth calculator useful?
Recover nominal milling chip load from table feed and rotational speed. This nominal value is not a direct maximum-chip-thickness model for all engagements.
How do I use the feed per tooth calculator?
Enter table feed (mm/min), effective teeth (integer), spindle speed (rpm). The result updates automatically. Use the units shown beside each input; the example values illustrate the method.
Which formula does this calculator use?
Feed per tooth = table feed/(teeth × rpm).
What should I check before using the result?
This nominal value is not a direct maximum-chip-thickness model for all engagements.
How are results rounded?
Scalar numbers display up to six decimal places, with scientific notation for very large or small values. Text, fraction, date and schedule outputs use the format described on the tool. Intermediate calculations use JavaScript floating-point arithmetic. Keep sensible precision for your measurements.
Further reading
For background on this topic, see Sandvik Coromant: machining formulas and definitions ↗. This is a topic reference, not an external review or endorsement of this tool.
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