Convert Milligal to Kilometres per second squared
Convert Milligal (mGal) to Kilometres per second squared (km/s²) instantly and accurately.
Conversion Formula
km/s² = mGal × 1.000000000e-8
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.
About Kilometres per second squared
The kilometre per second squared (km/s²) equals 1000 m/s², useful in astrodynamics where velocities are naturally in km/s. Solar system surface gravities: Earth ≈ 9.807 × 10⁻³ km/s², Moon ≈ 1.62 × 10⁻³ km/s², Jupiter ≈ 0.0248 km/s², Sun ≈ 0.274 km/s². Spacecraft trajectory simulators (GMAT, STK) express perturbation accelerations in km/s² through the equation of motion ā = -μr/r³ + δa_perturb. Ion engine thrust on a 600 kg probe (8 mN) gives ≈ 1.3 × 10⁻⁸ km/s². 1 km/s² = 1000 m/s² ≈ 101.97 g₀.
Quick Reference Table
| Milligal (mGal) | Kilometres per second squared (km/s²) |
|---|---|
| 1 mGal | 1 × 10-8 km/s² |
| 2 mGal | 2 × 10-8 km/s² |
| 5 mGal | 5 × 10-8 km/s² |
| 10 mGal | 1 × 10-7 km/s² |
| 25 mGal | 2.5 × 10-7 km/s² |
| 50 mGal | 5 × 10-7 km/s² |
| 100 mGal | 1 × 10-6 km/s² |