When to use this calculator
Estimate feed-motion time for a machining pass. Include approach and overtravel in distance if needed; setup, acceleration and tool changes are not added.
Explore the machining feeds, speeds & time calculators for other questions in this topic. For a related calculation, use the Milling Feed Rate Calculator: Calculate nominal milling table feed from tooth count, chip load and spindle speed.
PUTTING IT INTO PRACTICE
Machining Time: 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 |
|---|---|
| Total feed travel (mm) | 500 |
| Effective feed rate (mm/min) | 100 |
| Result | 5 min |
- Check the input labels and enter the example values above.
- Apply the relationship: Cutting time = feed travel/feed rate.
- The result is 5 min, rounded for display.
How to interpret your result
Include approach and overtravel in distance if needed; setup, acceleration and tool changes are not added.
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 machining time calculator useful?
Estimate feed-motion time for a machining pass. Include approach and overtravel in distance if needed; setup, acceleration and tool changes are not added.
How do I use the machining time calculator?
Enter total feed travel (mm), effective feed rate (mm/min). The result updates automatically. Use the units shown beside each input; the example values illustrate the method.
Which formula does this calculator use?
Cutting time = feed travel/feed rate.
What should I check before using the result?
Include approach and overtravel in distance if needed; setup, acceleration and tool changes are not added.
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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