How to use

The acceleration converter covers SI m/s², standard gravity gₙ, imperial units, Gal/mGal used in gravimetry and vehicle-style speed-change-per-second units. Every conversion is normalized through m/s².

Enter a signed acceleration value.
Choose source and target units.
Calculate to see the target plus m/s², g, ft/s², Gal and km/h/s equivalents.
Interpret the sign using your chosen coordinate axis; negative acceleration does not always mean speed magnitude is decreasing.

How it is calculated

Convert through m/s²; standard gravity gₙ = 9.80665 m/s² and 1 Gal = 0.01 m/s²

Example

1 standard g is exactly 9.80665 m/s² under the defined standard, about 32.1740 ft/s², 980.665 Gal and 35.30394 km/h gained per second.

Important notes

gₙ here is standard gravity defined as 9.80665 m/s², not the measured local gravitational acceleration at your location. Gal equals cm/s² and mGal equals 10⁻⁵ m/s². This is a unit converter; predicting motion also requires time, velocity and other conditions.

Frequently asked questions

How much is 1 g?

Standard gravity gₙ is 9.80665 m/s² by the definition used for conversion.

Is a Gal the same as cm/s²?

Yes. 1 Gal = 1 cm/s² = 0.01 m/s².

Can I convert negative acceleration?

Yes. Sign can represent direction along a chosen axis, so the converter preserves it.

Is this calculator free?

Yes. It is free to use and requires no account.

Acceleration Converter