Pace Calculator

About Pace Calculator

Pace Calculator converts running pace between min/km and min/mile in real time, calculates equivalent speed in km/h and mph, and estimates your finish time for any race distance. Enter your pace in either unit and the other updates instantly. Use the Race Finish Time section with preset distances for 5K, 10K, half marathon, and marathon, or enter any custom distance. The tool is useful for runners of all levels, from beginners setting their first target to experienced athletes preparing for a personal best. Pace and speed are shown simultaneously, so there is no need to switch between calculators or unit systems.

How to use Pace Calculator

  1. Enter your pace in min/km or min/mile - the other updates instantly
  2. See your equivalent speed in km/h and mph
  3. Pick a race distance or enter a custom one to get your finish time

Frequently Asked Questions

How do I enter my pace?
Type your pace in MM:SS format, for example 5:30 for 5 minutes and 30 seconds per km. The calculator converts to min/mile automatically.
What race distances are available?
Quick-select buttons for 5K (5 km), 10K (10 km), Half Marathon (21.0975 km), and Marathon (42.195 km). You can also enter any custom distance in kilometres.
How is the finish time calculated?
Finish time equals pace in seconds per km multiplied by the distance in km. The result is shown in h:mm:ss format.
What is a good running pace for beginners?
A comfortable beginner pace is around 7:00-8:30 min/km (11:15-13:45 min/mile), which is a brisk walk to a slow jog. The goal for new runners is to maintain a pace where you can hold a conversation without losing breath.
What pace do I need to run a sub-2-hour half marathon?
A sub-2:00 half marathon requires a pace of 5:41 per km or 9:09 per mile. Enter 5:41 in the min/km field and select Half Marathon to confirm the exact finish time.
Is Pace Calculator free and private?
Yes. Pace Calculator is completely free with no account required. All calculations run entirely in your browser and nothing is stored or uploaded.
Does Pace Calculator work on mobile?
Yes. Pace Calculator is fully responsive and works in all modern browsers on desktop, mobile, and tablet.

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