Do I need to mount a sensor on my wheel?

No. This speedometer uses your phone's built-in GPS, so there's no wheel magnet, sensor, or pairing involved — just open the page and start tracking.

How accurate is a GPS bicycle speedometer?

Under open sky, GPS speed is typically accurate to within a few percent. A wired wheel sensor can be more precise moment-to-moment, but GPS needs no setup and works on any bike.

Can I see my average speed for the whole ride?

Yes — the stats below the gauge track max speed, average speed (based on moving time, not time spent stopped), and total distance for your current session.

Bicycle Speedometer

A GPS speedometer for any bicycle — no wheel sensor, no pairing, just open and ride.

GPS Inactive

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.

Works with any bike

Whether it's a road bike, mountain bike, hybrid, or e-bike, this tool doesn't care what you're riding — it reads speed straight from your phone's GPS. Mount your phone securely where you can glance at it, start tracking, and go.

You'll get live speed, your max speed for the ride, moving average, and distance, in the unit of your choice.

Other speedometers

Related guides

Frequently asked questions

Do I need to mount a sensor on my wheel?: No. This speedometer uses your phone's built-in GPS, so there's no wheel magnet, sensor, or pairing involved — just open the page and start tracking.
How accurate is a GPS bicycle speedometer?: Under open sky, GPS speed is typically accurate to within a few percent. A wired wheel sensor can be more precise moment-to-moment, but GPS needs no setup and works on any bike.
Can I see my average speed for the whole ride?: Yes — the stats below the gauge track max speed, average speed (based on moving time, not time spent stopped), and total distance for your current session.