Everything is measured live, on your device, for the whole journey.
A reading that updates every second, in km/h or mph — switch any time with the toggle on the meter.
The fastest moment of your trip is remembered, so you can see how quick the train really got.
Not just the peak — the honest average for the whole journey, ready to compare with the timetable.
How far you have travelled during the trip, tracked alongside the speed.
Your location is processed on your own device. It is never stored, never sent to a server, and no account is needed.
The same GPS meter works in a car, bus, metro, on a bike or on foot — if you are moving, it can measure it.
Almost every problem is a GPS signal problem — and most fix themselves.
Allow location for this site in your browser and phone settings, then tap Start again. Where a "precise location" option appears, keep it on.
Sit near a window and keep the phone out of a bag or pocket. A metal coach body, a large station roof and dense city buildings can all weaken GPS.
Satellites cannot reach underground, so the reading pausing is normal — it does not mean the train has stopped. A fresh reading returns on its own once you are back outside.
Switching to another app or tab can pause the meter. Come back to this page, keep it in front of you, and wait for a fresh reading.
Scroll back up, tap Start, and watch your train's live speed — free, with no app and no sign-up.
↑ Start Speed Test