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m/s to km/h Converter

Convert meters per second to kilometers per hour by multiplying by 3.6. Includes physics examples, the speed of sound in km/h, and how to convert acceleration units.

Convert meter per second to kilometer per hour

Formula

textkm/h=textm/stimes3.6\\text{km/h} = \\\\text{m/s} \\\\times 3.6

Or equivalently:

textkm/h=textm/stimesfrac36001000\\text{km/h} = \\\\text{m/s} \\\\times \\\\frac{3600}{1000}

Worked example

Convert 25 m/s to km/h:

textkm/h=25times3.6=90\\text{km/h} = 25 \\\\times 3.6 = 90

Result: 90 km/h

How to use

  1. Enter the speed in meters per second
  2. Click "Calculate" to see the equivalent in kilometers per hour

Common conversions

| m/s | km/h | |-----|------| | 5 | 18 | | 10 | 36 | | 15 | 54 | | 20 | 72 | | 25 | 90 | | 30 | 108 |

Common use cases

  • Physics and engineering calculations
  • Weather and wind speed
  • Sports performance analysis
  • Vehicle dynamics

FAQ

Why is the factor 3.6? Because 1 km = 1000 m and 1 hour = 3600 seconds, so 3600/1000 = 3.6.

Can I use this for aviation? Yes, but aviation typically uses knots (nautical miles per hour).

How accurate is this conversion? The conversion is exact based on the definitions of meter and hour.

Is m/s used in science? Yes, m/s is the SI unit for speed.

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