Running pace is how long it takes to run 1 kilometre or 1 mile. A 5km run in 25 minutes = pace of 5:00 per km. To finish a marathon (42.2km) in 4 hours = pace of 5:41 per km. Use this calculator to find pace from time, finish time from pace, or distance covered in a given time.
📂 Health
🏃 Running Pace Calculator
Calculate running pace, finish time, or distance for any race. Perfect for 5K, 10K, half marathon, and full marathon training. Convert between min/km and min/mile instantly.
✏️ Enter Your Values
✨ Your Result
🦉Owl's Explanation
🏃
Fill in the values above and click Calculate ✨
✅ Trusted Tool
The 365tool.net Running Pace Calculator uses standard pace calculation formulas. Free for runners at all levels from beginners to marathon runners. No sign-up needed.
🤔 How Does This Work?
The Running Pace Calculator converts between three related values:
Pace = Total time (seconds) / Distance (km)
Finish time = Pace (seconds/km) x Distance (km)
Distance = Total time (seconds) / Pace (seconds/km)
Results show pace in both min/km and min/mile, and provide comparative race times at the same effort for standard race distances.
❓ Frequently Asked Questions
What is a good running pace?▼
It depends on your experience. Beginner: 7-9 min/km. Intermediate: 5-7 min/km. Advanced: 4-5 min/km. Elite: under 3 min/km. For 5K: good beginner time is 35-45 minutes. For 10K: 50-70 minutes. Do not compare yourself to others — your pace vs your own history is what matters.
How do I convert pace between km and miles?▼
1 mile = 1.60934 km. To convert min/km to min/mile: multiply by 1.60934. Example: 5:00/km = 5 x 1.60934 = 8:03/mile. To convert min/mile to min/km: divide by 1.60934. Example: 8:00/mile = 8/1.609 = 4:58/km.
What is a negative split?▼
Running the second half of a race faster than the first half. This is the optimal race strategy — start slightly slower than goal pace and gradually speed up. Most world records are run on near-even or negative splits. Starting too fast causes lactic acid buildup and forces a slower second half.
How do I train to improve pace?▼
Interval training: run 400m-1km repeats faster than race pace with rest between. Tempo runs: run 20-40 minutes at comfortably hard effort (Zone 3-4). Easy runs: 80% of training should be slow (Zone 1-2). Consistent mileage over months is most important for improving pace.
What is my race pace for different distances?▼
Paces differ by distance. Your 5K pace will be 10-15 seconds/km faster than your 10K pace, 30-40 seconds faster than half marathon pace, and 60+ seconds faster than marathon pace. Our calculator helps you set realistic goals for any distance.
It depends on your experience. Beginner: 7-9 min/km. Intermediate: 5-7 min/km. Advanced: 4-5 min/km. Elite: under 3 min/km. For 5K: good beginner time is 35-45 minutes. For 10K: 50-70 minutes. Do not compare yourself to others — your pace vs your own history is what matters.
How do I convert pace between km and miles?▼
1 mile = 1.60934 km. To convert min/km to min/mile: multiply by 1.60934. Example: 5:00/km = 5 x 1.60934 = 8:03/mile. To convert min/mile to min/km: divide by 1.60934. Example: 8:00/mile = 8/1.609 = 4:58/km.
What is a negative split?▼
Running the second half of a race faster than the first half. This is the optimal race strategy — start slightly slower than goal pace and gradually speed up. Most world records are run on near-even or negative splits. Starting too fast causes lactic acid buildup and forces a slower second half.
How do I train to improve pace?▼
Interval training: run 400m-1km repeats faster than race pace with rest between. Tempo runs: run 20-40 minutes at comfortably hard effort (Zone 3-4). Easy runs: 80% of training should be slow (Zone 1-2). Consistent mileage over months is most important for improving pace.
What is my race pace for different distances?▼
Paces differ by distance. Your 5K pace will be 10-15 seconds/km faster than your 10K pace, 30-40 seconds faster than half marathon pace, and 60+ seconds faster than marathon pace. Our calculator helps you set realistic goals for any distance.