For rail travel
Train Speed Test — How Fast Is My Train Going?
Your train’s speed is what GPS says — tap Start and hold your phone near a window. Expect brief gaps in tunnels.
This use-case page exists because “train speed test” gets real traffic (tens of thousands monthly in India per brief) and competitor zpeed.in ranks with it. Same live speedometer, framed for rail: note accuracy limits inside metal coaches, tunnels and urban canyons. Open water = good signal; underground = weak or lost.
Live dialLive
Live session
Heading
—
Moves with you — needs motion
Signal quality
—
Press Start — the bar fills as GPS locks.
Trip progress
0 fixes
Tap to switch — keeps your choice.
Signal — · ±— mHDG —
Tap Start to measure your speed. Your browser will ask for location permission — coordinates are processed locally and never sent anywhere.
Average
--km/h
Max
--km/h
Distance
--.--km
Elapsed
--:--:--
Recent history
0 readings
No speed readings yet — press Start and move.
Location stays on this device — processed locally in your browser, never uploaded or stored.
Free · no signup · works outdoors
Off by default. Only active while tracking — we never keep your screen on otherwise.
Hold near a window for best signal. In tunnels GPS will show “Weak” or “Searching” — that’s normal. Speed resumes after exit.
Coordinates never leave your device — Learn how GPS speed is measured →
Accuracy on a train
GPS works through windows, not through tunnels or deep cuttings. At 200 km/h the app smooths the last 3–4 fixes so the number doesn’t jump. Check the ±m badge: ≤15m is good, 16–50m weak.
Tip for rail fans
Start before departure to capture average and max. Keep screen awake with the toggle so you don’t miss the top speed in a sprint section.
Privacy-first — coordinates never leave your device
Processed locally in your browser, never stored on a server. Close the tab and it's gone. Learn how GPS speed is measured →
Frequently asked
Page-specific questions — same data drives the FAQ schema below.
Does GPS speed work inside a train?
Yes, but only with a view of the sky — near a window works, deep inside a metal carriage or tunnel blocks the signal and shows Searching.
Why does my speed reading jump around on a train?
Tunnels and metal shielding cause brief loss. The app smooths the last few fixes and shows Searching instead of a fake number, then resumes after the tunnel.
Single-open accordion — only one question open at a time. Use multiple FAQ accordions on one page with different idPrefix values.
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Every page embeds a live instance of the tool — not just text.