Convert Millimetres per second squared to Standard gravity
Convert Millimetres per second squared (mm/s²) to Standard gravity (g₀) instantly and accurately.
Conversion Formula
g₀ = mm/s² × 0.0001019716213
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 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
| Millimetres per second squared (mm/s²) | Standard gravity (g₀) |
|---|---|
| 1 mm/s² | 0.000101972 g₀ |
| 2 mm/s² | 0.000203943 g₀ |
| 5 mm/s² | 0.000509858 g₀ |
| 10 mm/s² | 0.00101972 g₀ |
| 25 mm/s² | 0.00254929 g₀ |
| 50 mm/s² | 0.00509858 g₀ |
| 100 mm/s² | 0.0101972 g₀ |