Pace Calculator

How runners use this tool

Use this tool to turn a finish time into pace per kilometer, pace per mile, and average speed for race planning or workout review.

1. Choose kilometers or miles so the pace output matches the way you normally train and race.
2. Enter the total distance and full elapsed time from your run, race, or workout.
3. Use the pace and speed output to compare with your goal race pace, then move to splits or goal-time planning if needed.

How to use the result

• Compare the result to your goal event so you can judge whether your target is realistic right now.
• Use the splits calculator when you need checkpoint pacing rather than one average pace number.
• Treat average pace as a planning baseline, not a guarantee for hilly routes, heat, trail terrain, or tactical races.

Formula and assumptions

Average pace = total elapsed time / total distance. Average speed = distance / total time.

• This is an average-pace calculator, so it does not adjust for elevation, weather, or stop time.
• A race with lots of surges can have the same average pace as a much steadier effort.

Worked examples

• Beginner: 5 km in 35:00 → 7:00/km average pace. Helps first-time runners set realistic easy-run targets.
• Race prep: Half marathon in 1:50:00 → 5:13/km or 8:24/mi. Useful baseline for race-day pacing bands.
• Advanced: 10 km in 40:00 → 4:00/km average pace. Quickly checks if current pace matches interval and tempo goals.

Common questions