Running Pace Calculator

Enter the distance in kilometres and the time it took to get your pace and speed.

Updated October 27, 2026

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<iframe src="/embed/en/health/pace-calculator/" width="480" height="640" title="Running Pace Calculator" loading="lazy" style="border:0;max-width:100%"></iframe>
<script>window.addEventListener('message',function(event){if(event.origin!==''||!event.data||event.data.type!=='calc-embed-height')return;var f=document.getElementsByTagName('iframe');for(var i=0;i<f.length;i++){if(f[i].contentWindow===event.source){f[i].style.height=event.data.height+'px';}}});</script>

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Formula

pace per km = total seconds ÷ distance in km
pace per mile = pace per km × 1.609344
speed (km/h) = distance ÷ (total seconds ÷ 3600)

Worked example

10 km in 50:00 is 3,000 seconds. Pace is 3,000 ÷ 10 = 300 seconds, so 5:00 per km. Per mile that is 300 × 1.609344 = 483 seconds, or 8:03. Speed is 10 ÷ (3,000 ÷ 3,600) = 12 km/h.

Frequently asked questions

How do I calculate running pace?

Divide your total time by the distance. Running 10 km in 50 minutes is 3,000 seconds ÷ 10 = 300 seconds, a pace of 5:00 per km.

How do I convert pace per km to pace per mile?

Multiply by 1.609344. A pace of 5:00 per km is 300 × 1.609344 = 483 seconds, or 8:03 per mile.

How do I get speed in km/h from pace?

Divide 3,600 by the pace in seconds per km. A 5:00 pace is 3,600 ÷ 300 = 12 km/h.

What pace do I need for a 3:30 marathon?

A marathon is 42.195 km. 3 hours 30 minutes is 12,600 seconds, and 12,600 ÷ 42.195 is about 299 seconds, so roughly 4:59 per km.

How we calculate

Running Pace Calculator

Formula

Worked example

Frequently asked questions

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