Calculate your pace, speed, or finish time — perfect for training and race day planning.
Whether you're training for a 5K, a marathon, or just tracking your daily jog, this running pace calculator gives you instant numbers. Enter a distance and a time (hours, minutes, seconds) and we'll compute your pace per kilometer and per mile, plus your average speed in both km/h and mph. You can also see your finish time if you maintain that pace — ideal for race time calculator needs.
This speed distance time calculator works by dividing total time by distance for pace, or dividing distance by time for speed. All calculations are done in your browser — no data is sent anywhere. Use it to set realistic race goals, adjust your training intervals, or simply understand your current fitness level. For example, a 45‑minute 10K means a 4:30/km pace (7:14/mile) and a speed of 13.3 km/h (8.3 mph).
Bookmark this pace calculator for quick access during your training cycle. If you're curious about how we built it or want tips on pacing strategy, read the story behind this tool.