Pace Calculator
Calculate your running pace, finish time, or distance for any race. Find the pace needed to hit a target time, or predict your finish time based on your training pace.
Part of our Health Calculators collection.
Pace Calculator
Free online calculator
How to Use This Calculator
- 1
Select what you want to calculate: pace, finish time, or distance.
- 2
Choose your race distance or enter a custom distance.
- 3
Enter the known values (time or pace).
- 4
See your result instantly.
Running Pace Formulas
Pace (min/km) = Total Time (minutes) / Distance (km) Finish Time = Pace (min/km) × Distance (km) Distance (km) = Total Time (minutes) / Pace (min/km) Conversions: 1 mile = 1.60934 km 5K = 5 km | 10K = 10 km | Half = 21.0975 km | Full = 42.195 km
Example Calculation
Example: Pace needed for a 4-hour marathon
Inputs
calcMode: pacedistancePreset: 42.195timeHours: 4
Result
5:41 per km (9:08 per mile)
240 minutes ÷ 42.195 km = 5.687 min/km = 5 min 41 sec per kilometer.
Frequently Asked Questions
What pace do I need for a sub-4 hour marathon?
To finish a marathon in under 4 hours, you need to maintain a pace of 5:41 per km (9:09 per mile) or faster throughout the 42.195 km race.
What is a good 5K time?
For beginners, finishing a 5K in under 40 minutes is a great goal (8:00 min/km). Intermediate runners aim for under 30 minutes (6:00 min/km). Competitive amateur runners target 20–25 minutes.
How do I convert pace from km to miles?
Multiply your min/km pace by 1.60934. So a 5:00/km pace = 8:03/mile.