Pace Calculator
Enter your pace per km or mile, and this free pace calculator shows your speed, the matching pace in the other unit and finish times for 5K, 10K, half and full marathon. Use it to set a race goal or plan a sub-4 pace.
페이스 계산기, 러닝 페이스 계산기, 페이스 속도 변환, 페이스 시속 변환, 마라톤 완주 시간 계산, 풀코스 예상 기록, 하프 마라톤 기록, 5K 기록, 10K 기록, 서브3, 서브4, pace calculator, pace to speed, marathon finish time calculator, ペース計算, kalkulator pace, máy tính pace, calculadora de ritmo- Created
- 2026.10.01
- Updated
- 2026.10.01
Pace and speed
Pace / SpeedPace is the time it takes to run one km (or one mile), and speed is the distance you cover in an hour. They describe the same thing upside down, so a smaller pace and a bigger speed both mean faster. Runners tend to prefer pace because a glance at the watch at each km tells you right away whether you are ahead of or behind plan.
Favorites Ctrl + N
How to use
Choose whether your pace is per km or per mile.
Enter how long one km (or one mile) takes in the minutes and seconds boxes. You can paste a pace like 5:30, and the ↑ ↓ keys change it by a minute or a second.
Press Calculate or Enter to see your speed, the pace in the other unit and the finish times for 5K, 10K, half and full marathon.
If your marathon time beats sub-3, sub-3:30, sub-4 or sub-5, a badge shows it. Press Esc to start over.