A GPS speedometer for cycling
A GPS bike speedometer with the dial scaled to 60 km/h (40 mph), so cycling speeds fill the gauge nicely. It shows your current speed plus your top and average speed for the ride — no wheel magnet, sensor or bike computer required, just your phone. Everything runs on your device; nothing is uploaded.
How Bike Speedometer works
No sensor needed
Traditional bike computers use a magnet on the wheel and must be calibrated to your tyre size. This tool skips all that: it reads speed straight from your phone's GPS, so it works on any bike straight away and is accurate as long as you have a clear view of the sky.
Getting the best reading
- Mount your phone on the handlebars or keep it in an arm strap.
- Start tracking before you ride out and allow location access.
- Ride outdoors — tree cover and tall buildings can reduce GPS accuracy.
Want total distance for the ride? Use the GPS odometer.
Common uses
- Track your cycling speed
- See your top speed on a ride
- Check your average riding speed
- Use any bike without a sensor
- Compare road vs hybrid bike speed
- Train without a bike computer
- Show a big digital speed on your bars
- Measure speed on an e-bike
Frequently asked questions
Do I need a bike computer or sensor?
No — it reads speed from your phone GPS, so no wheel magnet or calibration is needed.
How accurate is a GPS bike speedometer?
With a good outdoor signal it is accurate to within about 1–2 km/h.
Does it show average speed?
Yes — it tracks your average and top speed for the ride.
Will it drain my battery?
GPS uses some battery; on long rides keep the phone charged or use a battery pack.
Is my ride data uploaded?
No — nothing leaves your device.
Is it free?
Yes, completely free.