Acceleration converter
Converts accelerations: m/s², standard gravity (g), and ft/s².
2 g is 19.6133 m/s².
- Input
Provenance
- Computed by
- units.acceleration.convert 1.0.0, core 0.1.0
- Model
- Exact unit definitions
- Accuracy
- Exact to double precision: each conversion is one correctly rounded ratio of exact definitions
- Notes
- None
- Cites
- National Institute of Standards and Technology, Guide for the Use of the International System of Units (SI), NIST Special Publication 811
Something look off?
How we got thisFormula, worked example, sources, and proof
Model: Exact unit definitions
Accuracy: Exact to double precision: each conversion is one correctly rounded ratio of exact definitions
When to use this: Use this for a load factor, a braking or launch figure, or a vibration limit quoted in one system and needed in another: a 2 g manoeuvring limit in m/s², a sensor reading in ft/s² against a specification in g.
Limitations: The g here is standard gravity, the defined constant of 9.80665 m/s². It is not the local acceleration of gravity, which runs from about 9.78 at the equator to 9.83 at the poles and falls with height -- a few parts in a thousand, which matters for gravimetry and does not for a load factor. A load factor is also not the same thing as an acceleration in a straight line: it is the ratio of lift to weight, and in a steady turn the aircraft is not speeding up at all.
Worked example: 2 g in m/s². Source: Exact unit definitions (NIST SP 811 Appendix B). It is golden test vector v001, and every build checks the tool still gives its answer within its tolerance.
You enter
- To unit
- m/s2
- Value
- 2 g0
You get
- Converted
- 19.6133 m/s²
- Input
- 2 g
Review: Not yet independently reviewed by a metrologist.
Last verified: 2026-09-18, when a maintainer last confirmed this tool's sources at the issuer. See the sources ledger.
Status: version 1.0.0, core 0.1.0. See this tool in the verification report.
Checked against: 22 golden test vectors (download the test vectors, each with its source and tolerance). See how results are checked and every source.
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, National Institute of Standards and Technology, 2008 edition. Appendix B.8, Factors for units listed alphabetically.