Running Pace Calculator

What is a running pace calculator?

A running pace calculator converts distance and time into a pace per mile or kilometre, or works out the finish time for a distance at a target pace. It’s the number every training plan is built around — “how fast am I running?”

How this calculator works

• In pace mode, enter a distance and finish time; it returns pace per km or mile plus speed.
• In time mode, enter a distance and pace; it returns the finish time.
• Units toggle between kilometres and miles, with the pace conversion done for you.
• Results update instantly as you type.

How to use the result

1. Set your easy-run pace 1–2 minutes per km slower than race pace — most weekly miles belong there.
2. Use time mode to plan intervals: 8 × 400m at 4:30/km pace is 1:48 per repeat.
3. Convert race-day predictions between distances with your current 5k or 10k pace.
4. Re-check monthly — a 10-second-per-km improvement is a meaningful fitness gain.

What’s a good running pace?

There’s no universal “good” — it depends on experience and distance. Beginners often run 6:30–7:30 per km; competitive club runners 4:00–4:30. Judge your pace against your own recent times, not strangers’ — consistent easy miles improve pace faster than chasing numbers.

Common mistakes

• Mixing km and mile paces. 6:00/km is about 9:39/mile — the units are not interchangeable.
• Setting every run to race pace. Running too fast too often is the most common injury cause.
• Ignoring course profile. Elevation and heat change pace; flat-track paces don’t transfer to hilly routes.

Pace is the effort side of running, and it pairs with the heart rate zones calculator to keep effort honest — your easy pace should sit in Zone 2. The TDEE calculator covers the calories those miles burn.