About the Acceleration Converter
Acceleration Converter changes an acceleration between metres per second squared, standard gravity (g), feet per second squared, gal (cm/s²), kilometres per hour per second and miles per hour per second. Enter a value, choose its unit and see all the others. It is useful for physics and engineering homework, car performance such as 0 to 100 km/h, lift and ride comfort, and sensor data from phones and accelerometers that report in g or m/s².
Updated October 2026
How to use the Acceleration Converter
- 1Type the an acceleration you want to convert.
- 2Choose the unit it is in from the From unit list.
- 3Read the result in every other unit straight away.
- 4Press Copy to keep the answer, or change the number to try another.
When you need a an acceleration converter
Acceleration Converter changes an acceleration between metres per second squared, standard gravity (g), feet per second squared, gal (cm/s²), kilometres per hour per second and miles per hour per second. Acceleration is how fast a speed changes. A car that goes from 0 to 100 km/h in 8 seconds accelerates at about 3.47 km/h per second, which is 0.96 m/s² or roughly 0.1 g. A fighter jet pulling 9 g feels nine times its normal weight.
Units and what they mean
The unit g is handy because people can feel it. Free fall near the ground is 1 g, a fast lift is about 0.1 to 0.2 g, a rollercoaster peaks at 3 to 5 g and most people black out above about 5 g without training.
- Metre per second squared: the SI unit of acceleration
- Standard gravity g: 9.80665 m/s², used for g-force
- Feet per second squared: the imperial form, with 1 g about 32.17 ft/s²
- km/h per second and mph per second: how car acceleration is often quoted
Tips for accurate results
To go from acceleration to speed or distance use the Free Fall Calculator or the Projectile Motion Calculator. For force, multiply the acceleration by a mass with the Force Calculator, and convert the result with the Force Converter.
Round only at the end of a calculation. If you convert and then convert again, keep the full number in between so small errors do not add up.
Related conversions
Phone sensors often report in m/s² and include gravity, so a phone lying flat reads about 9.8 on the vertical axis. Related tools: Force Calculator, Free Fall Calculator, Speed Converter, Force Converter and Projectile Motion Calculator.
Features
- 6 units in one list
- Every result shown at once
- Exact factors, no rounding until you read it
- Works with decimals and negative-free values
- Copy button for the answer
- Calculated in your browser, so nothing is uploaded.
Frequently asked questions
How do I convert an acceleration?
Type the number, pick the unit you start with and read the answer in every other unit below. Each unit is stored as an exact factor of one base unit, so a result is the number times its factor divided by the target unit's factor.
How many m/s² is 1 g?
Exactly 9.80665 m/s² by definition of standard gravity.
What is 0 to 60 mph in g?
It depends on the time, but 0 to 60 mph in 3 seconds is about 0.91 g.
What is a gal?
A unit of acceleration used in geophysics: 1 gal is 1 cm/s², or 0.01 m/s².
Is the result exact?
The factors used are the official or standard definitions, so the maths is exact. The page rounds what it shows to about 10 significant digits so numbers stay readable.
Does it work on my phone?
Yes. The page is built for small screens, with large inputs and a list of units you can scroll.
Is anything sent to a server?
No. The conversion is plain arithmetic in your browser, so nothing you type leaves your device.