Calculator Running Pace and Speed Calculator

Instantly convert time, distance and speed to optimize your running performance

Speed calculator
Metric Imperial

Distance covered

First enter the distance of your run

↕ Then enter either time, speed or pace ↕

Running time

Enter your time (speed and pace will recalculate automatically)

Average speed

Or enter your speed in mph (time and pace will recalculate automatically)

Running pace

Average time per distance (or enter to recalculate)

Per mile:
Per 400 meters (track lap):
Per 100 meters:

Speed ↔ Pace Conversion Chart

Visualize the relationship between speed and pace. Your calculated value is marked on the curve.

Speed ↔ Pace conversion table (detailed data)
Speed (km/h) to pace (min/km) conversion for running
Speed (km/h)Pace (min/km)Level
610:00Brisk walking
78:34Slow jog
87:30Jogging
96:40Easy run
106:00Moderate run
115:27Regular runner
125:00Intermediate
134:37Good level
144:17Advanced runner
154:00Very good level
163:45Competitive
173:32Regional athlete
183:20National athlete
203:00Elite
222:44International elite
252:24World record (marathon pace)

Time Projections for Common Distances

Estimate your finish times for classic running distances if you maintain the same pace.

Estimated times by distance at constant pace (detailed data)
Race time projections at a constant pace of 12 km/h (5:00 min/km) — reference example
DistanceKilometresEstimated time at 12 km/h
1 mile1.609 km8 min 03 s
2 miles3.219 km16 min 06 s
3 miles4.828 km24 min 08 s
5 km5.000 km25 min 00 s
5 miles8.047 km40 min 14 s
10 km10.000 km50 min 00 s
Half Marathon21.097 km1 h 45 min 29 s
Marathon42.195 km3 h 30 min 58 s

Formula: Time = Distance (km) ÷ Speed (km/h) × 60. For example, for a 10 km at 12 km/h: 10 ÷ 12 × 60 = 50 minutes.

How to use the running speed calculator?

Our running speed calculator allows you to easily convert between time, distance and speed. Whether you're preparing for a marathon, a 10k or a simple training run, this free tool helps you plan your sessions.

Main features

  • Average speed calculation: Enter your time and distance to get your speed in km/h
  • Pace calculation: Automatically get your time per kilometer (min/km)
  • Time calculation: Enter your target speed and distance to estimate your time
  • Precision to the meter: Add kilometers and meters for more accuracy

Why use a running speed calculator?

For both beginner and experienced runners, knowing your average speed and pace is essential to:

Go further

Once you've calculated your speed, you can also:

Usage examples

Example 1: You ran 10 km in 50 minutes? Your average speed is 12 km/h, or a pace of 5 min/km - perfect for an intermediate runner!

Example 2: You're aiming for a marathon (42.195 km) in 4 hours? You'll need to maintain a speed of 10.55 km/h, or about 5 min 41 s per kilometer.