Convert Centimetres per Second to Speed of Light
Convert Centimetres per Second (cm/s) to Speed of Light (c) instantly and accurately.
Conversion Formula
c = cm/s × 3.335640952e-11
About Centimetres per Second
A centimetre per second (cm/s) is 10⁻² m/s - the speed of slow animals, gentle breezes, and lab syringe pumps. Tortoises travel 0.5-1.5 cm/s; the fastest garden snail record is ~1.3 cm/s. A gentle breeze that barely moves leaves is Beaufort 1 ≈ 50-100 cm/s. Drug-delivery syringe pumps run 0.01-10 cm/s. Coarse silt settles in still water at ~0.2 cm/s (Stokes' law). Capacitive touch sensors detect finger motion at 1-10 cm/s. 1 cm/s = 0.01 m/s.
About Speed of Light
The speed of light in vacuum (c) = exactly 299,792,458 m/s - the defined SI constant from which the metre is derived (since 1983) and the universal speed limit of causality. Light from the Sun reaches Earth in 8 min 20 s; from the Moon in 1.28 s; from Proxima Centauri in 4.24 years. Mars communication delay 3-22 minutes. In optical fibre (n ≈ 1.467), c/n ≈ 200,000 km/s. GPS clocks must correct for both special and general relativistic effects. c = 299,792,458 m/s.
Quick Reference Table
| Centimetres per Second (cm/s) | Speed of Light (c) |
|---|---|
| 1 cm/s | 3.336 × 10-11 c |
| 2 cm/s | 6.671 × 10-11 c |
| 5 cm/s | 1.668 × 10-10 c |
| 10 cm/s | 3.336 × 10-10 c |
| 25 cm/s | 8.339 × 10-10 c |
| 50 cm/s | 1.668 × 10-9 c |
| 100 cm/s | 3.336 × 10-9 c |