Pace and Speed Converter
Easily convert between running pace (minutes per kilometer) and speed (kilometers per hour). This tool is essential for runners who want to understand their performance metrics better.
How to use this converter:
- Select the conversion direction: Pace to Speed or Speed to Pace.
- Enter your value in the input field.
- Click "Convert" to see the result instantly.
Pace (min/km) ↔ Speed (km/h)
Why convert Pace and Speed?
Runners often use "pace" to track their speed, while treadmills and other fitness devices often display "speed" in km/h. Knowing how to convert between these two metrics helps you set accurate training goals and monitor your progress effectively.
Understanding Pace vs. Speed for Runners
In the running world, pace and speed are two ways to express the same thing — how fast you're moving — but they approach it from opposite directions. Pace measures time per unit distance (e.g., 5:00 min/km), while speed measures distance per unit time (e.g., 12 km/h). They are inversely related: as one goes up, the other goes down.
The Math Behind the Conversion
The conversion formula is straightforward: Speed (km/h) = 60 ÷ Pace (min/km). Conversely, Pace (min/km) = 60 ÷ Speed (km/h). The number 60 comes from there being 60 minutes in one hour.
For example, a pace of 5:00 min/km (5 minutes per kilometer) converts to: 60 ÷ 5 = 12 km/h. And a speed of 10 km/h converts to: 60 ÷ 10 = 6:00 min/km.
Common Pace/Speed Reference Table
- Easy jog: 7:00–8:00 min/km (7.5–8.6 km/h)
- Recreational running: 5:30–7:00 min/km (8.6–10.9 km/h)
- Half marathon (average): 5:00–6:00 min/km (10.0–12.0 km/h)
- Marathon (average): 5:30–6:30 min/km (9.2–10.9 km/h)
- Sub-3h marathon: ~4:15 min/km (14.1 km/h)
- Elite marathon: ~2:55 min/km (20.6 km/h — world record pace)
- Sprinting (100m): ~1:40 min/km equivalent (36+ km/h)
When Each Metric is More Useful
Pace is preferred by most runners because it directly tells you how long it takes to cover each kilometer (or mile). It's intuitive for planning races — if you know your target pace, you can easily calculate your expected finish time: Finish Time = Pace × Distance. For example, a 5:00 min/km pace over 42.195 km (marathon) = approximately 3 hours and 30 minutes.
Speed is more commonly used on treadmills, cycling computers, and in sports science contexts. It's also the standard unit for comparing different modes of transport (driving, cycling, running).
Frequently Asked Questions
What is a good running pace for beginners?
Most running coaches recommend that beginners start with a comfortable 7:00–9:00 min/km pace (6.7–8.6 km/h). At this pace, you should be able to hold a conversation while running (the "talk test"). As fitness improves, pace naturally decreases over weeks and months of consistent training.
How do I convert between min/km and min/mile?
To convert pace from min/km to min/mile, multiply by 1.60934 (since 1 mile ≈ 1.609 km). For example, a 5:00 min/km pace equals approximately 8:03 min/mile. To go the other direction, divide by 1.60934. Our tool currently uses the metric system (min/km and km/h).
What pace do I need to run a sub-2-hour marathon?
A sub-2-hour marathon (42.195 km in under 120 minutes) requires a pace of approximately 2:50 min/km, which is a speed of about 21.1 km/h. This was first achieved by Eliud Kipchoge in the INEOS 1:59 Challenge in 2019 (though under non-official conditions).