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Marathon pace calculator

Calculate the required pace for a marathon target time.

Your result

Complete the fields and calculate.

Calculation method and formula

(Target hours [h] × 60 + Additional minutes [min]) × 60 ÷ 42.195

Understand the inputs

Target hours
Unit: h. Whole number.
Additional minutes
Unit: min. Whole number.

Assumptions and limitations

Speed is distance per time; pace is time per distance. Use moving time or elapsed time consistently. Breaks, traffic and changing speed are not automatically included.

The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation.

Worked example

Illustrative values. Replace them with your own inputs for your calculation.

Target hours
4 h
Additional minutes
0 min
Example result5:41 min/km

Average speed: 10.55 km/h.

Model revision: October 17, 2026 · How CleverCalc works

FAQ

Frequently asked questions

How does Marathon pace calculator work?+

(Target hours [h] × 60 + Additional minutes [min]) × 60 ÷ 42.195. Speed is distance per time; pace is time per distance. Use moving time or elapsed time consistently. Breaks, traffic and changing speed are not automatically included.

What assumptions should I consider for this result?+

Speed is distance per time; pace is time per distance. Use moving time or elapsed time consistently. Breaks, traffic and changing speed are not automatically included. The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation.

How accurate is the result?+

The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation. Health values are general information, not a diagnosis or personal treatment recommendation.

Is this calculator free?+

Yes. Calculations and PDF export work without an account or registration.

What happens to my inputs?+

Calculations run in your browser. Results are saved locally only when you add them to My results; favourites and history are also local. Shared links contain your values. The currency tool requests the selected currencies from its rate provider without sending your amount.

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