microgal
Accelerationexact by definition
The microgal is 10⁻⁸ m/s², a billionth of Earth's gravity to within an order of magnitude. It is the resolution of a modern absolute gravimeter, and it is the level at which groundwater storage changes, magma movement and post-glacial rebound become directly measurable as a change in weight.
| 1 | 1.0000000e-08 |
Where the unit came from
A microgal corresponds to about 3 mm of elevation change in the free-air gradient, which is why repeat absolute gravity measurements at a fixed pier can track vertical land motion without any satellite involved.
One microgal in every acceleration unit
| 1 | microgal (μGal)this unit | |
| 0.001 | milligal (mGal) | |
| 0.00001 | millimeter per second squared (mm/s²) | |
| 0.000001 | centimeter per second squared (cm/s²) | |
| 0.000001 | gal (Gal) | |
| 3.93701e-07 | inch per second squared (in/s²) | |
| 3.60000e-08 | kilometer per hour per second (km/h/s) | |
| 3.28084e-08 | foot per second squared (ft/s²) | |
| 2.23694e-08 | mile per hour per second (mph/s) | |
| 1.00000e-08 | meter per second squared (m/s²) | |
| 1.01972e-09 | standard gravity (g) |
Solvers that use acceleration