Bike Speedometer
GPS Inactive
0
km/h
SpeedCheck needs your device's location to measure speed. Your browser will ask for permission when you tap Start Tracking — your location is never stored or sent anywhere.
Max Speed0km/h
Average Speed0km/h
Trip Distance0.00km
Moving Time00:00:00
Do not interact with this device while driving. Have a passenger operate it, or mount it securely and glance only when safe to do so.
A GPS speedometer for any ride
Mount your phone where you can see the screen, hit Start Tracking, and go. You'll get live speed, your maximum speed for the ride, a moving average (which excludes time spent stopped at lights or junctions), and total distance. Switch to mph or km/h depending on where you're riding.
Keep your phone secured and glance at it only when it's safe to do so — see the safety notice below the controls.
Other speedometers
Related guides
Frequently asked questions
- Do I need a cadence or speed sensor?
- No. This tool reads speed from your phone's GPS, not a wheel sensor, so there's nothing to pair or install. A dedicated bike computer with a wheel sensor will generally be more precise at very low speeds and in GPS-denied spots like tunnels, but GPS is accurate enough for most road and trail riding.
- Will it work on an indoor trainer?
- No — GPS requires a view of the sky to receive satellite signals, so it cannot measure speed indoors on a stationary trainer. For indoor sessions, a wheel or trainer-based speed sensor is required instead.
- Why does my speed drop in tunnels or dense tree cover?
- GPS signals can be blocked or reflected by solid cover, which lowers accuracy or causes a temporary loss of fix. The app excludes very inaccurate readings from your stats rather than showing a wrong number.