Acceleration Converter

Runs locally in your browser. Nothing leaves your device.

Instantly convert acceleration between m/s², g₀, Gal, ft/s², km/h/s, mph/s, kn/s and other units.

Use a comma or period as the decimal separator; do not use thousands separators.

All units

SI and metric

Nanometre per second squared (nm/s²)
1,000,000,000
Micrometre per second squared (µm/s²)
1,000,000
Millimetre per second squared (mm/s²)
1,000
Centimetre per second squared (cm/s²)
100
Metre per second squared (m/s²)
From
1
Kilometre per second squared (km/s²)
0.001

Gravimetry and standard acceleration

Milligal (mGal)
100,000
Gal (Gal)
100
Standard gravity (g₀)
To
0.101971621

Imperial

Inch per second squared (in/s²)
39.3700787
Foot per second squared (ft/s²)
3.2808399
Yard per second squared (yd/s²)
1.0936133
Mile per second squared (mi/s²)
0.000621371192

Velocity change per time

Kilometre per hour squared (km/h²)
12,960
Mile per hour squared (mi/h²)
8,052.97065
Kilometres per hour per second (km/h/s)
3.6
Miles per hour per second (mph/s)
2.23693629
Knots per second (kn/s)
1.94384449

How it works

  1. 1

    Enter value and source unit

    Enter the acceleration value and choose the source unit.

  2. 2

    Choose the target unit

    Choose the target unit from one of the three groups.

  3. 3

    Copy the result

    Copy one or all results for further use.

Good to know

The acceleration converter converts directly in your browser between SI/metric, Anglo-American, and gravimetry units, following a = dv/dt. g₀ is the exactly defined standard acceleration of 9.80665 m/s² — not the locally identical Earth gravity everywhere.

Calculation runs locally in the browser. km/h/s and km/h² are different units; vehicle and safety calculations always require verified measurements, not just converted estimates.

Typical use cases

Convert vehicle acceleration into g

Convert m/s² into multiples of g to interpret acceleration figures from vehicle tests.

Convert gravimetry measurements

Convert Gal and milligal from geophysical measurements into SI units.

Tips for better results

g₀ is a standard value, not a local measurement

g₀ = 9.80665 m/s² is exactly defined; actual gravitational acceleration varies slightly by location.

Don't confuse km/h/s and km/h²

Both notations denote different units — check which one your source actually means.

Features

  • Three unit groups

    SI/metric, Anglo-American, and gravimetry/standard acceleration are separated.

  • Local conversion

    Calculation happens directly in the browser, without transmission to a server.

  • Exact standard value g₀

    g₀ = 9.80665 m/s² is used as an exactly defined standard value, clearly separated from local Earth gravity.

Frequently asked questions

Is g₀ the same everywhere on Earth?

No. g₀ is an exactly defined standard value (9.80665 m/s²); actual gravity varies slightly by location.

Are my inputs uploaded?

No. Conversion runs entirely locally in the browser.

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