Calculator
Pick a distance and enter a goal time. We’ll compute pace per km and per mile.
Key checkpoints (marathon)
When distance is set to marathon, we show common markers: 5k, 10k, half, 30k, 40k and finish.
Printable pace band
This prints a compact checkpoint band (ideal to fold or tape). Use the print button in the calculator.
Full 1 km splits (optional)
If you want a detailed table, open this. It can be long for a marathon.
Show full 1 km table
Popular goal-time pages
Prefer a dedicated page with pacing tips, conversions, and related goal times?
Tip: if your goal time isn’t listed, the calculator still works—goal pages are just shortcuts for common targets.
Marathon pace calculator FAQ
How do I calculate pace per mile from pace per km?
Multiply pace-per-km seconds by 1.609344 to get pace per mile (or use this calculator).
Should I aim for even splits?
Most runners do best with steady pacing and a controlled first half. Small negative splits can happen naturally if you stay calm early.
What should I do if conditions are hot or hilly?
Use effort as the guide. Expect slower splits in heat or hills and focus on consistency rather than forcing exact numbers.