Roadmeter
G-force · 0–60

G-Force Meter and 0–60 Timer for iPhone

Roadmeter Pro measures g-force and 0–60 on every trip you record. It captures peak acceleration and peak braking force in g from the iPhone's motion sensors, draws a g-force graph for the drive, and times your best 0–60 mph run (or 0–100 km/h) from the GPS speed stream.

Download on the App Store About Roadmeter

01 What you get

  • Peak acceleration g and peak braking g per trip
  • A second-by-second g-force graph alongside the speed graph
  • 0–60 mph or 0–100 km/h, picked from your display unit, timed from a standstill
  • Measured on the device; the phone can be mounted at any angle
  • Part of Roadmeter Pro (3-day free trial on the yearly plan)

02 What it doesn't do

  • Results appear in the trip detail after a recorded trip; it is not a standalone live g-meter screen.
  • A phone is not a lab instrument: a loose mount adds noise. Mount it firmly.

03 Questions

How does Roadmeter time 0–60?

It watches GPS speed from a standstill and records the time to 60 mph (or 100 km/h), rather than integrating accelerometer data, which drifts.

Is the g-force meter free?

No. G-force and 0–60 analytics are part of Roadmeter Pro.

04 Also