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CNC Feeds & Speeds

Cutting Length Calculator

Find cutting travel from constant feed and time, then inspect repeated passes and additional distance.

Basic Cutting Length Calculator

Find the distance travelled at a constant feed over a known cutting time. This is the inverse of a cutting-time estimate. It is useful for checking a straight motion or comparing a recorded feed and elapsed cutting interval.

Used For

Check constant feed per minute and cutting time.

Formula

Cutting length = feed per minute × cutting time in minutes.

Cutting Length Basic

Enter the values you know. The result is calculated in your browser.

Calculation only. Verify toolmaker data, material grade, engagement, machine limits, workholding and actual cutting conditions before production.

Advanced Cutting Length Calculator

Use the fuller calculation when additional process and machine variables matter.

Cutting Length Advanced

Enter the values you know. The result is calculated in your browser.

Calculation only. Verify toolmaker data, material grade, engagement, machine limits, workholding and actual cutting conditions before production.

Find Travel From Feed And Time

  1. Enter constant feed per minute and cutting time in minutes.
  2. Calculate the length for that interval.
  3. For the advanced panel, treat time as time per pass. Add extra distance per pass and enter the number of passes to obtain modelled total travel.

Distance From Feed And Time

Distance equals feed per minute multiplied by time in minutes. At 500 mm/min for 2 minutes, the distance is 1,000 mm. With three identical passes and 10 mm additional travel per pass, total modelled travel is (1,000 + 10) × 3 = 3,030 mm.

What The Advanced Time Field Means

The time input describes cutting time per pass. The allowance adds distance per pass, not seconds. The displayed total cutting-time value multiplies the entered time by passes; it does not include extra time for that additional distance.

Constant Feed Is An Assumption

Acceleration, corners and feed overrides can change actual travel during an elapsed interval. This tool does not reconstruct toolpaths from a machine log. Use Cutting Time when distance is known and time is the unknown.

Calculation Process With Example Values

Illustrative arithmetic only. Select cutting inputs from the applicable tool and material reference.

StepSubstitutionResult
Cutting Length500 × 21,000 mm

The Extra-Distance Field Does Not Add Time

The advanced length result includes additional travel, while its time result only multiplies entered cutting time by pass count. It does not add time for the extra distance. Use the cutting time calculator when total distance is known and time is the required result.

Cutting Length Questions

Can I Enter Seconds In The Time Field?

The field expects minutes. Divide seconds by 60 before entering the value so it matches the per-minute feed.

Can This Reconstruct Travel From A Machine Runtime?

Only under the constant-feed assumption for the entered cutting interval. Total runtime can include stationary, rapid or slower motion, which this multiplication cannot reconstruct.

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The site brings calculation tools and machining references into one workspace. Use the editorial and site information to understand its purpose and limitations. Send corrections with a reproducible example through the error report form.