Convert Microgal to Standard gravity
Convert Microgal (µGal) to Standard gravity (g₀) instantly and accurately.
Conversion Formula
g₀ = µGal × 1.019716213e-9
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 Standard gravity
Standard gravity (g₀) is defined as exactly 9.80665 m/s² by the 3rd CGPM (1901), chosen to approximate surface gravity at ~45.5° latitude. It is the universal reference for human g-tolerance: fighter pilots sustain up to +9 g₀ with G-suit; sustained +3 g₀ causes greyout unprotected; F1 drivers experience +5 g₀ lateral and -4 g₀ braking. Pound-force is defined as 0.45359237 kg × g₀ = 4.44822 N (exact). Rocket specific impulse in seconds = thrust / (mass flow × g₀). 1 g₀ = 9.80665 m/s² = 980.665 Gal ≈ 32.174 ft/s² ≈ 35.304 km/h/s.
Quick Reference Table
| Microgal (µGal) | Standard gravity (g₀) |
|---|---|
| 1 µGal | 1.02 × 10-9 g₀ |
| 2 µGal | 2.039 × 10-9 g₀ |
| 5 µGal | 5.099 × 10-9 g₀ |
| 10 µGal | 1.02 × 10-8 g₀ |
| 25 µGal | 2.549 × 10-8 g₀ |
| 50 µGal | 5.099 × 10-8 g₀ |
| 100 µGal | 1.02 × 10-7 g₀ |