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Race Predictor - Running Time Calculator

Sports
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Estimates potential race times for different distances based on a recent performance.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Current Race Distance, Current Pace (Minutes per Mile), Current Pace (Seconds per Mile), and Target Race Distance in the units shown.

Step 2

Read Current Pace (Total Seconds per Mile), Predicted Pace (Seconds per Mile), Predicted Time (Seconds), and Predicted Time (Minutes) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

5k to 10k

Current Race Distance: 3.1 miles; Current Pace (Minutes per Mile): 7; Current Pace (Seconds per Mile): 0; Target Race Distance: 6.2 miles

Current Pace (Total Seconds per Mile): 420 seconds; Predicted Pace (Seconds per Mile): 400.7759063 seconds; Predicted Time (Seconds): 25 seconds; Predicted Time (Minutes): 41 minutes

10k to Half Marathon

Current Race Distance: 6.2 miles; Current Pace (Minutes per Mile): 8; Current Pace (Seconds per Mile): 0; Target Race Distance: 13.1 miles

Current Pace (Total Seconds per Mile): 480 seconds; Predicted Pace (Seconds per Mile): 432.4652615 seconds; Predicted Time (Seconds): 25 seconds; Predicted Time (Minutes): 94 minutes

Half Marathon to Marathon

Current Race Distance: 13.1 miles; Current Pace (Minutes per Mile): 9; Current Pace (Seconds per Mile): 0; Target Race Distance: 26.2 miles

Current Pace (Total Seconds per Mile): 540 seconds; Predicted Pace (Seconds per Mile): 443.0047464 seconds; Predicted Time (Seconds): 27 seconds; Predicted Time (Minutes): 193 minutes

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