Running Pace Calculator | 5K, 10K, Half & Full Marathon Predicted Times
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
hours
minutes
seconds
Pace:
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Speed:
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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
minutes
seconds
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
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.
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.
Predictions are based on your current pace, so actual times may vary. Training status, weather, course difficulty, and other factors can affect your performance.