Convert Millimetres per second squared to Metres per second squared
Convert Millimetres per second squared (mm/s²) to Metres per second squared (m/s²) instantly and accurately.
Conversion Formula
m/s² = mm/s² × 0.001
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 Metres per second squared
The metre per second squared (m/s²) is the SI coherent derived unit of acceleration, defined as Δv/Δt (m/s per s). It makes Newton's second law F = ma dimensionally consistent with the newton (1 N = 1 kg·m/s²). Key reference values: standard gravity g₀ = 9.80665 m/s² (exact); ISS centripetal acceleration ≈ 8.68 m/s²; Falcon 9 max axial load ≈ 49 m/s² (5 g₀); human tolerance limit for sustained acceleration ≈ 30 m/s². All SI engineering and simulation software uses m/s² as the native acceleration unit. 1 m/s² = 100 Gal ≈ 0.102 g₀ ≈ 3.281 ft/s².
Quick Reference Table
| Millimetres per second squared (mm/s²) | Metres per second squared (m/s²) |
|---|---|
| 1 mm/s² | 0.001 m/s² |
| 2 mm/s² | 0.002 m/s² |
| 5 mm/s² | 0.005 m/s² |
| 10 mm/s² | 0.01 m/s² |
| 25 mm/s² | 0.025 m/s² |
| 50 mm/s² | 0.05 m/s² |
| 100 mm/s² | 0.1 m/s² |