Convert Millimetres per second squared to Microgal
Convert Millimetres per second squared (mm/s²) to Microgal (µGal) instantly and accurately.
Conversion Formula
µGal = mm/s² × 100000
About Millimetres per second squared
The millimetre per second squared (mm/s²) equals 10⁻³ m/s², the standard unit for vibration acceleration in machine condition monitoring. ISO 10816 and ISO 20816 define machinery vibration limits in mm/s and mm/s²; ISO 10816-3 Zone A boundary for industrial machinery is ≈32 mm/s² at 2.2 Hz. Seismically, MMI VI ground shaking (masonry damage threshold) corresponds to 620-1250 mm/s² peak ground acceleration. 1 mm/s² = 10⁻³ m/s² ≈ 1.02 × 10⁻⁴ g₀.
About Microgal
The microgal (µGal) equals 10⁻⁸ m/s², the resolution benchmark of the world's most sensitive gravimeters. Earth's gravity varies by about 5.19 × 10⁶ µGal from equator to pole; geodetically meaningful signals - glacial rebound (1-2 µGal/year), groundwater recharge (5-150 µGal), and volcanic inflation (10-200 µGal) - require sub-µGal precision. Superconducting gravimeters achieve noise floors below 0.1 µGal/√Hz; the GRACE-FO satellite pair detected seasonal mass changes of 10-200 µGal over major river basins. 1 µGal = 10⁻⁸ m/s² ≈ 1.02 × 10⁻⁹ g₀.
Quick Reference Table
| Millimetres per second squared (mm/s²) | Microgal (µGal) |
|---|---|
| 1 mm/s² | 100000 µGal |
| 2 mm/s² | 200000 µGal |
| 5 mm/s² | 500000 µGal |
| 10 mm/s² | 1000000 µGal |
| 25 mm/s² | 2500000 µGal |
| 50 mm/s² | 5000000 µGal |
| 100 mm/s² | 10000000 µGal |