Cycling Speed Calculator
Enter a ride distance and time for your average speed, or switch to gears to see your speed at each pedalling rate.
This is an estimate for general information and is not medical advice. Wind, hills and stops change real speed.
Worked examples
40 km in 1:30
40 km in 1:30:00
26.7 km/h (16.6 mph)
40 divided by 1.5 hours.
50 x 17 at 90 rpm
50 tooth ring, 17 tooth sprocket, 700 x 25c, 90 rpm
33.4 km/h
90 x (50/17) x 2.105 m x 60 min.
About Cycling Speed Calculator
This calculator does two jobs for cyclists. The first is average speed: enter the distance of a ride and the time you took and it gives your speed in km/h and mph, your pace per kilometre and how long 10 km up to 100 miles would take at that speed. A 40 km ride in 1 hour 30 minutes is 26.7 km/h, or 16.6 mph.
The second job is gearing. Choose the number of teeth on your chainring and sprocket and your tyre size, and the page shows your speed at pedalling rates from 60 to 110 revolutions a minute. Speed equals cadence times the ratio of chainring to sprocket teeth times the wheel’s rolling circumference. A 50 tooth ring with a 17 tooth sprocket on a 700 x 25c tyre at 90 rpm gives 33.4 km/h. It is an estimate and not medical advice.
How to use Cycling Speed Calculator
- Choose speed of a ride, or speed from gears.
- For a ride, enter the distance, the unit and the time.
- For gears, enter the teeth on the chainring and sprocket and pick the tyre size, or type the wheel circumference.
- Read the speed and the table.
Common uses
- Checking average speed after a ride
- Planning how long a sportive will take
- Choosing gears for a target speed at your cadence
- Comparing a new cassette with the old one
Frequently asked questions
How do I work out average cycling speed?
Divide the distance by the time in hours. For 40 km in 1.5 hours that is 26.7 km/h. Use moving time if your computer shows it, since stops lower the average.
How is speed worked out from gears?
Speed equals pedal revolutions a minute times chainring teeth divided by sprocket teeth, times the wheel circumference, then converted to kilometres an hour. The page does the conversion.
What wheel circumference should I use?
The tyre size list uses typical rolling circumferences, for example 2,105 mm for 700 x 25c. For the best accuracy, mark the tyre, roll the bike one full turn with your weight on it and measure.
What is a good cadence?
Many road cyclists pedal at about 80 to 100 revolutions a minute. Find one that feels comfortable. The table shows speed from 60 to 110 so you can compare gears.
Is this medical advice?
No. It is an estimate and not medical advice. Speak to your GP before taking on a hard new challenge if you have a health condition.