How fast am I going? Check online with this free GPS speedometer
🔒 Your GPS data is processed only on your device. Nothing is stored or sent to any server.
Online GPS Speedometer — How Fast Am I Going?
Check your live speed in mph, km/h, m/s or knots. Works for car, train, bus, bike, boat & plane. No app needed.
How to check your speed online
- Turn on your device's location (GPS).
- Tap the START button and allow location access when the browser asks.
- Pick your unit — km/h, mph, m/s or knots — and Analog or Digital display.
- Start moving. Your live speed, trip distance, max and average speed update in real time.
How to enable website location on your phone?
First, go to your device settings and turn on Location, then follow these steps:
Step 1: Open SpeedometerOnline.com and tap the Lock icon at the top of your browser.
Step 2: Tap the Permissions option.
Step 3: Tap the switch to enable Location access.
Step 4: The switch should now look like this — turned on.
Step 5: Refresh the page — it will start showing your travelling speed.
Where can you use this online speedometer?
🚆 Train speed check
Curious how fast your train is running? Open this page from your seat, allow GPS, and see live train speed — great for Vande Bharat, metro or express journeys. No app required.
🚗 Car speedometer
Use it as a backup digital speedometer, or flip on HUD mode at night to project your speed onto the windshield from your dashboard.
🚌 Bus & cable car
Measure the speed of any bus, tram or cable car you're riding and share the result with friends using the Share button.
🚴 Bike & running
Track cycling or jogging pace with average speed and trip distance — a lightweight alternative to fitness apps.
⛵ Boat & ferry
Switch to knots for marine use. Works on lakes, rivers and open sea wherever your phone has a GPS fix.
✈️ Plane (window seat)
On many flights GPS works near a window — check your ground speed at cruising altitude in mph or km/h.
Why use a GPS speedometer?
A GPS speedometer calculates speed from satellite positioning rather than wheel rotation, so it works in any vehicle — even ones without a built-in speedometer, like bicycles, boats or trains. Car speedometers are often calibrated 3–10% high by law; GPS shows your true ground speed. It's also useful for verifying a faulty vehicle speedometer, checking a taxi or bus driver's speed, or simply satisfying curiosity on a journey.
How accurate is it?
With clear sky, GPS speed is accurate to roughly ±1–2 km/h. Accuracy drops in tunnels, under heavy tree cover or between tall buildings. Watch the GPS Accuracy tile — a value under 10 m means excellent precision. Treat readings as a guide, always obey the road and your vehicle's own instruments.
GPS speedometer vs your vehicle's speedometer
Vehicle speedometers measure wheel rotation, which makes them sensitive to tire size, tire wear and pressure — and regulations in most countries require them to never read low, so manufacturers calibrate them 3–10% high. A GPS speedometer measures how your actual position changes between satellite fixes, giving your true ground speed in any vehicle, even ones with no speedometer at all.
| Feature | Vehicle speedometer | This GPS speedometer |
|---|---|---|
| Reading | 3–10% higher than actual | True ground speed (±1–2 km/h) |
| Works in trains / buses / boats | Not visible to passengers | Yes, from any seat |
| Affected by tire size | Yes | No |
| Trip stats (max / avg / distance) | Usually limited | Built in, free |
| Units | One or two | km/h, mph, m/s, knots |
Everything this free speedometer includes
- Analog & digital displays — classic needle gauge or big easy-to-read digits.
- Four units — km/h and mph for road, m/s for science and sports, knots for boats and aviation.
- Trip computer — max speed, average speed, distance travelled and trip time, with one-tap reset.
- Speed alert — set a limit in any unit and get a beep the moment you cross it.
- HUD night mode — mirrored digits reflect in your windshield from the dashboard.
- Compass, altitude & GPS accuracy — know your direction, elevation and how reliable the reading is.
- Share as image — turn your trip result into a picture and share it anywhere.
- Day & night themes — bright for daylight, dark for night journeys.
Looking for a specific tool? Try the train speed checker, bus speedometer, car speedometer, full screen display, online compass or the elevation finder.
Tips for the most accurate speed reading
- Get a clear sky view — sit near a window in trains and buses; GPS struggles through metal roofs.
- Wait for the fix — the first reading can take 5–15 seconds; accuracy improves after that.
- Watch the accuracy tile — under 10 m means excellent precision; over 30 m, treat the speed as approximate.
- Keep the screen on — the built-in wake lock does this automatically while measuring.
- Steady speeds read best — GPS updates about once per second, so rapid acceleration shows a slight delay.
More free tools on this site
🧪 Speedometer Test
Test your dashboard speedometer accuracy vs GPS.
⚡ How Fast Am I Going?
One-tap answer to your current speed.
🚆 Train Speed Checker
Measure your train’s speed from your seat.
🚌 Bus Speed Checker
Check bus speed and estimate arrival time.
🚗 Car Speedometer
Verify your dashboard’s true speed via GPS.
⛶ Full Screen Speedometer
Giant digits for dashboards & bike mounts.
🧭 Online Compass
Find your direction in degrees instantly.
⛰️ Elevation Finder
Your altitude above sea level in m & ft.
Frequently Asked Questions
Is this online speedometer free?
Yes — completely free, forever, with no app installation. It runs in your browser on any phone, tablet or computer.
Why does it show 0 speed?
Check that device location is ON, you granted this site location permission, and you're actually moving outdoors. GPS can't measure speed while stationary or indoors.
Is my location stored anywhere?
No. All GPS processing happens locally in your browser. We never receive, store or share your position or speed.
Can I measure train or bus speed?
Yes — it works for any moving vehicle: train, bus, car, bike, boat or plane, as long as your device gets a GPS signal.
What is HUD mode?
HUD (head-up display) mode mirrors the digits so you can lay your phone flat on the dashboard at night and read your speed reflected in the windshield.
How do I enable location on my phone?
Open your browser's site settings (tap the lock icon in the address bar) → Permissions → Location → Allow, then refresh this page. Also make sure GPS/Location is turned on in your phone's quick settings.
Does it work on iPhone?
Yes. Open Safari or Chrome, visit this page, tap START and allow location. It works exactly the same as on Android.