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Speedometer for Car

Create a Car Speedometer in your browser, free and instantly.

km/h mph m/s knots
AnalogDigital
0 km/h
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km/h
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Top speed
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Average
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GPS accuracy
Your GPS data is processed only on your device and is never uploaded or stored. For accurate readings, allow location access and use it outdoors on a phone.

Speedometer for every vehicle

Same GPS engine, tuned for what you're moving in — with the right units and dial range for each.

For Bike For Motorcycle For Bus For Train For Boat For Plane For Truck For Scooter For Running For Walking GPS Speedometer GPS Odometer

A GPS speedometer for your car

This is a GPS speedometer tuned for driving — the dial scales up to 240 km/h (160 mph) so normal road speeds sit in the comfortable middle of the gauge. It shows your real ground speed in km/h or mph, with your top and average speed for the trip. Use it as a backup if your dashboard gauge fails, or to check how accurate your car's speedometer really is. Everything runs on your device; nothing is uploaded.

How Car Speedometer works

Why GPS speed differs from your dashboard

By law, a car's speedometer must never read lower than your true speed, so manufacturers deliberately set it to read a little high — often by around 5–10%. GPS measures your actual distance over the ground, so it is usually closer to your real speed. Don't be surprised if this reads a few km/h lower than your dash.

Tips for driving

  1. Mount your phone or have a passenger hold it — never tap the screen while driving.
  2. Press Start before you set off and allow location access.
  3. Give GPS a few seconds for a solid fix; the accuracy figure shows the signal quality.

Need distance instead of speed? Try the GPS odometer, or the plain GPS speedometer.

Common uses

  • Use as a backup car speedometer
  • Check your dashboard speedometer accuracy
  • See your true speed in km/h or mph
  • Record your top speed on a drive
  • Track average speed on a journey
  • Show speed for a classic car with no working gauge
  • Verify speed limiter behaviour
  • Display a large digital speed readout

Frequently asked questions

Why does this read lower than my car speedometer?
Car gauges are set to read slightly high by law; GPS shows your true ground speed, which is usually a few percent lower.
Is a GPS car speedometer accurate?
With a clear outdoor fix it is typically accurate to within a few km/h.
Can I use it as a backup speedometer?
Yes — it is a handy backup if your dashboard gauge stops working.
Does it work without internet?
It needs the page loaded first, then GPS itself works offline; a connection is not required for the speed reading.
Is my location stored?
No — it stays on your device and is never uploaded.
Is it free?
Yes, completely free with no sign-up.