All Tools
0–100 Sprint Timer (GPS)
Arm the timer, drive off, and the clock starts itself at 3 km/h — splits at 60, stops at 100. Best runs are saved on your device.
Idle
Speed
0 km/h
Timer
0.0 s
0–60 split
— s
How to use it safely
- • Mount the phone securely, open this page, tap Arm timer, then drive off — the clock starts when you pass 3 km/h and stops at 100 km/h.
- • Use a closed course or private road. This is a training/reference tool — the road is not a racetrack.
- • Compare runs from the SAME device and location. GPS timing carries roughly ±0.2–0.3 s; drag strips use dedicated timing gear for a reason.
- • Keep the phone plugged in — continuous GPS + screen-on drains battery fast.
Good to know
- GPS timing carries roughly ±0.2–0.3 s uncertainty (1 Hz fixes, ±3–5 m). Compare runs from the same device and spot.
- Closed course or private road only — this is a training and benchmarking tool, not a licence to sprint on public roads.
- Keep the phone mounted and plugged in: continuous GPS with the screen on flattens batteries fast.
- Factory times from car makers use one-foot rollout and timing gear; your phone numbers will read slightly different — that is expected.