Running Split Calculator

Calculate your splits for a race or training run.
Calculator
Enter your values
Results
DistanceCumulative Time
1.0 km05:00
2.0 km10:00
3.0 km15:00
4.0 km20:00
5.0 km25:00
Pacing Strategy
Mastering the art of pacing

Even Splits

This calculator generates even splits, meaning every kilometer or mile is run at the exact same pace. This is the most efficient way to run for most runners.

Negative Splits

Advanced runners often aim for a "negative split," where the second half of the race is faster than the first. To do this, start slightly slower than the splits shown above and speed up gradually.

Race Day Tip

Adrenaline often causes runners to start too fast. Use these splits as a "speed limit" for the first half of your race to ensure you have energy for the finish.

How to Use

Step-by-step instructions
  1. 1Enter your goal time.
  2. 2Select the race distance.
  3. 3Select the split interval.
  4. 4The calculator will show a table of splits.

Split Calculation

The calculator assumes an even pace throughout the run and calculates the cumulative time at each split point.
Split Time = (Total Time / Total Distance) x Split Distance

Variables:

Total TimeGoal finish time
Total DistanceRace distance
Split DistanceInterval for splits (e.g., 1 km)

Example

5K with 1km Splits

Inputs:

Time:25:00
Distance:5 km
Split:1 km

Steps:

  1. 1.Pace: 5:00 per km
  2. 2.Split 1: 5:00
  3. 3.Split 2: 10:00
  4. 4.Split 3: 15:00
  5. 5.Split 4: 20:00
  6. 6.Split 5: 25:00
Result:
Table of splits

Frequently Asked Questions

Should I run even splits?

Even splits (running the same pace throughout) or negative splits (running the second half faster) are generally considered the most efficient strategies for racing.