What units should I use for velocity calculations?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
Always use consistent SI units for accurate calculations: meters (m) for distance, seconds (s) for time, kilograms (kg) for mass. This gives velocity in m/s.
Common conversions:
- 1 km/h = 0.278 m/s (divide by 3.6)
- 1 mph = 0.447 m/s (multiply by 0.447)
- 1 m/s = 3.6 km/h (multiply by 3.6)
- 1 m/s = 2.237 mph (multiply by 2.237)
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