Free THRYV tools
Running pace calculator
Work out pace, finish time or distance, then build an even-pace split schedule. Switch between kilometres and miles, from your first 5K to a marathon.
Average pace
5:00/km
Based on a constant average pace.
- Distance
- 5 km
- Finish time
- 0:25:00
- Pace /km
- 5:00
- Pace /mile
- 8:03
- Speed
- 12 km/h
Pace rounds to the nearest second. Unit conversions keep the same run and finish time.
Your even-pace splits
A schedule from your inputs, including any final partial kilometre.
| Split | Distance | Split time | Elapsed |
|---|---|---|---|
| 1 | 1 km | 5:00 | 0:05:00 |
| 2 | 1 km | 5:00 | 0:10:00 |
| 3 | 1 km | 5:00 | 0:15:00 |
| 4 | 1 km | 5:00 | 0:20:00 |
| 5 | 1 km | 5:00 | 0:25:00 |
| Total | 5 km | — | 0:25:00 |
Individual rows round to whole seconds. Real routes and conditions can change your pace.
Calculate pace, time or distance
Choose the value you want to find, then enter the other two. The calculator updates as you type. Choose a common race distance, or enter the distance from your watch or measure a route on the map.
- Pace
elapsed time ÷ distance- Finish time
distance × pace- Distance
elapsed time ÷ pace
Use matching units: kilometres with minutes per kilometre, or miles with minutes per mile. This tool handles those conversions when you switch units.
What pace do I need for a 5K or 10K?
A 30-minute 5K requires an average pace of 6:00 per kilometre. A 50-minute 10K requires 5:00 per kilometre. To work out a different target, choose Find pace, select the race distance and enter your target finish time.
For a half marathon, the preset uses 21.0975 km. For a marathon, it uses 42.195 km. A 2-hour half marathon works out at about 5:41 per kilometre; a 4-hour marathon has the same average pace.
Read your running splits
Each row shows the time for that kilometre or mile and the elapsed time at its end. A final partial split covers the distance left over. For example, a 5K contains three full miles and about 0.107 of a mile.
The schedule assumes an even average pace. Hills, stops, terrain and conditions can change your actual splits. Individual split times round to seconds, so displayed rows can differ slightly from the total when added together.
Take the next step with THRYV’s running features, or read how to fit running and strength into one week.
Common questions
How do I calculate running pace?
Divide your total elapsed time by distance. A 25-minute run over 5 kilometres has an average pace of 5:00 per kilometre, or about 8:03 per mile. Use elapsed time consistently if you want stops included.
How do I calculate my finish time?
Multiply distance by your pace in the same unit. At 6:00 per kilometre, a 10K takes 60 minutes. The result assumes you hold that average pace for the full distance.
What happens when I switch from kilometres to miles?
The tool converts the distance and pace together, preserving the same run and finish time. One mile is exactly 1.609344 kilometres. Displayed pace rounds to the nearest second; the converted calculation keeps its precision.
Are these kilometre and mile splits a race prediction?
They are an even-pace schedule calculated from your inputs. They do not predict your fitness, account for hills or weather, or tell you what pace you can sustain. The final partial kilometre or mile is included.
Can I use this for walking?
Yes. The relationship between distance, time and average pace works for walking too. Enter your own pace or the time and distance you recorded.