Acceleration Converter

Convert acceleration units, including standard gravity, metres per second squared and feet per second squared.

Inputs stay on your device No sign-up Free to use
How this works

The tool runs in this browser. Your file or text is not uploaded to UseFreeTools. Check this tool's limits for anything it may save on your device.

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Convert value controls

Showing an example. Edit to see your own.

A plain number such as 9.8 or 1.6e-3. A negative value is read as deceleration.

Processed in your browser. Your inputs stay on this device.

How to use Acceleration Converter

  1. Enter the acceleration value, with a sign if needed.
  2. Select the input and output acceleration units.
  3. Convert and copy the result with its squared-time unit.

Example: Acceleration Converter

Convert one standard gravity.

You add
Value: 1. From: standard g. To: m/s².
You get
1 standard g = 9.80665 m/s².

Options

Acceleration sign and standard g
A negative value keeps its sign. Standard g is the conventional 9.80665 m/s² unit factor, not a measurement of local gravity.
Decimal places
An acceleration expressed as a small fraction of standard gravity may lose detail at zero decimal places. Select 0, 2, 4, 6 or 8 display places to suit the supplied precision.

Supported inputs and limits

Standard g is fixed at 9.80665 m/s². The tool converts supplied accelerations; it does not measure local gravity, derive acceleration from a journey or interpret a device sensor. Values accept at most 64 characters, 40 significant digits, 20 fractional places and magnitude 10¹⁸. Scientific notation has at most two exponent digits. Display rounding offers 0, 2, 4, 6 or 8 decimal places; small nonzero results stay visible.

Where your input is processed

This tool processes your input in this browser. Your text and files are not uploaded to UseFreeTools. Check this tool's limits for anything it may save on your device.

A conventional unit is not a location reading

The selected unit conversion changes scale without evaluating a motion profile. It does not integrate acceleration into speed or distance, and a standard-g input should not be mistaken for a local gravitational survey.

Questions about Acceleration Converter

Is g a unit of mass here?

No. Here it means standard gravitational acceleration. Grams belong in the mass converter.

Is standard gravity my local gravity?

It is a fixed conventional value. Local gravitational acceleration varies with location and other conditions.

Why can acceleration be negative?

Its sign depends on the chosen axis. A negative value can describe acceleration in the opposite direction.

Project manager: Tony Hines · Content updated 4 October 2026 · Report a problem