Convert Microgal to Milligal
Convert Microgal (µGal) to Milligal (mGal) instantly and accurately.
Conversion Formula
mGal = µGal × 0.001
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.
About Milligal
The milligal (mGal) equals 10⁻⁵ m/s², the standard unit for geophysical gravity surveys. Bouguer gravity anomalies - reported in mGal after latitude and terrain corrections - reveal subsurface density contrasts: salt domes give +5 to +50 mGal, oceanic spreading ridges -200 to -300 mGal. Standard gravity is ≈ 980 765 mGal at sea level. The International Gravity Reference Frame 2016 is tied to absolute stations accurate to 0.01 mGal. 1 mGal = 10⁻⁵ m/s² ≈ 1.02 × 10⁻⁶ g₀.
Quick Reference Table
| Microgal (µGal) | Milligal (mGal) |
|---|---|
| 1 µGal | 0.001 mGal |
| 2 µGal | 0.002 mGal |
| 5 µGal | 0.005 mGal |
| 10 µGal | 0.01 mGal |
| 25 µGal | 0.025 mGal |
| 50 µGal | 0.05 mGal |
| 100 µGal | 0.1 mGal |