Result equals value times the ratio of conversion factors
Solution
All Speed Conversions
Unit
Value
Meter / Second (m/s)
1
Centimeter / Hour (cm/h)
360000
Centimeter / Second (cm/s)
100
Foot / Day (ft/d)
283464.57
Foot / Hour (ft/h)
11811.024
Foot / Minute (ft/min)
196.85039
Foot / Second (ft/s)
3.2808399
Inch / Second (in/s)
39.370079
Kilometer / Hour (km/h)
3.6
Kilometer / Minute (km/min)
0.06
Kilometer / Second (km/s)
0.001
Knot (kn)
1.9438445
Mach (sea level 15°C)
0.0029385836
Meter / Hour (m/h)
3600
Meter / Minute (m/min)
60
Mile / Hour (mph)
2.2369363
Mile / Minute (mi/min)
0.037282272
Mile / Second (mi/s)
0.00062137119
Millimeter / Second (mm/s)
1000
Speed of Light (c)
3.335641e-9
Yard / Second (yd/s)
1.0936133
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How It Works
This converter uses meters per second (m/s) as the base unit. Each speed unit is defined by its ratio to m/s, and the tool converts through that common base for maximum accuracy.
The converter supports everything from everyday units like mph and km/h to scientific units like the speed of light, all calculated with BigNumber precision.
Frequently Asked Questions
How do I convert mph to km/h?
Multiply miles per hour by 1.60934 to get kilometers per hour. For example, 60 mph equals approximately 96.56 km/h. This factor comes from the exact definition: 1 mile = 1.609344 km.
What is a knot?
A knot is one nautical mile per hour, equal to approximately 1.15078 mph or 1.852 km/h. Knots are the standard speed unit in aviation and maritime navigation because nautical miles relate directly to degrees of latitude.
How fast is Mach 1?
Mach 1 is the speed of sound, approximately 340.3 m/s (1,225 km/h or 761 mph) at sea level and 15°C. The actual speed varies with temperature and altitude because sound travels faster in warmer air.
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