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mgnv1rev 12026-03-17ISO 80000-3:2019, 3-11

standard acceleration of free fall in millimetre

0112/2///62720#UAE152

0,001-fold of the gravitational acceleration of an unhindered falling object caused by the force of gravity from the earth given by the definition gn = 9,806 65 m/s²

unit

Version history1#

  1. Current rev 01
    17 Mar 2026 · 11:18 UTC by BATCH 00000924
    View on cdd.iec.ch ↗

IEC CDD records every published revision of each entity — version number, status, timestamp, and the change request that introduced it. OpenCDD captures the full chain of custody from cdd.iec.ch; the entry marked Current is the one rendered on this page.

Metadata#

Note
In English this quantity gn was earlier also called “standard acceleration due to gravity”. See 3rd CGPM (1901).
Remark
Alternate symbols: gee; g
Source document
ISO 80000-3:2019, 3-11
Version
1
Revision
1
Status
Standard
Publisher
IEC
Published in
IEC 62720
Responsible committee
IEC/SC 3D
Change request
C00192
Dates
  • Original: 2026-03-17
  • Current version: 2026-03-17
  • Current revision: 2026-03-17