Running Pace Calculator
Enter distance and time to instantly calculate your per-km pace, speed, and predicted race times for 5K, 10K, half marathon, and full marathon. Includes a target pace guide and distance conversion table.
🏃♂️ Calculate from Distance and Time
hoursminutesseconds
Pace:-
Speed:-
Estimated Times for Major Distances
5km
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10km
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Half Marathon
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Full Marathon
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⏱️ Calculate Speed from Pace
minutesseconds
Pace:-
Speed:-
Estimated Times for Major Distances
5km
-
10km
-
Half Marathon
-
Full Marathon
-
📝 Usage Guide
1. Calculate from distance and time: Enter your actual running distance and time to calculate pace and speed.
2. Calculate from pace: Enter your target pace (min:sec/km) to calculate speed and estimated times.
Major distances: 5km, 10km, Half Marathon (21.0975km), Full Marathon (42.195km)
What is Pace?
Pace is the time it takes to run 1 km. For example, a pace of 5:30/km means running 1 km in 5 minutes and 30 seconds — the most important metric in marathon performance.
Pace Conversion Table by Distance
| Full Marathon Goal | Pace per 1km | 5K Equiv. | 10K Equiv. | Half Equiv. |
|---|---|---|---|---|
| 5:00:00 | 7:06 | 35:30 | 1:11:00 | 2:30:30 |
| 4:30:00 | 6:24 | 32:00 | 1:04:00 | 2:15:00 |
| 4:00:00 | 5:41 | 28:25 | 56:50 | 2:00:18 |
| 3:30:00 | 4:58 | 24:50 | 49:40 | 1:45:09 |
| 3:00:00 | 4:16 | 21:20 | 42:40 | 1:30:05 |
Recommended Pace by Marathon Goal
- Sub-5 (under 5 hours): Full marathon pace of 7:06/km. A great first full-marathon goal for beginner runners.
- Sub-4 (under 4 hours): Full marathon pace of 5:41/km. The benchmark challenge for intermediate runners.
- Sub-3 (under 3 hours): Full marathon pace of 4:16/km. The territory of elite amateur runners.
How to Use
- Enter the distance (km) and time you want to calculate.
- Press the Calculate button to automatically compute your pace per km and speed in km/h.
- Use the projected finish-time table at the bottom to see expected results for 5K, 10K, half, and full marathon at your pace.
- Enter a target pace in reverse to see projected times for each distance.
FAQ
How do I use the running pace calculator?
Enter your distance and time, and it will automatically calculate your pace per km and speed in km/h. It also provides predicted times for 5km, 10km, half marathon, and full marathon.
What is pace?
Pace is the time it takes to run one kilometer. For example, 5:30/km means it takes 5 minutes and 30 seconds to run 1 kilometer.
How accurate are the marathon time predictions?
Predictions are based on your current pace, so actual times may vary. Training status, weather, course difficulty, and other factors can affect your performance.