Method
How this tool works
Cycle = cutting length ÷ feed rate + rapid time + tool-change time. Batch = setup + cycle × quantity.
Worked example
1,000 mm at 500 mm/min takes 2 cutting minutes before rapids and tool changes.
Estimate batch time
CNC Machining Time Calculator
Estimate machining cycle and total batch time from cutting length, feed, rapids, tool changes and setup.
Use responsibly
Assumptions & limitations
Acceleration, spindle ramp, probing, dwell, chip clearing and operator delays are not modelled unless included in overhead inputs.
Last reviewed: 28 July 2026
Calculation and copy checked for this release.
Practical guide
CNC speeds and feeds formulas, with a worked example
Understand the relationship between cutting speed, tool diameter, spindle speed, chip load and table feed before entering machine settings.