Speed Converter
Convert between speed units
0.277778
m/s
rate：1 km/h = 0.27777778 m/s
Results in all units
1 km/h| Unit | Symbol | Value |
|---|---|---|
| Metric | ||
| Meters/second | m/s | 0.277778 |
| Kilometers/hour | km/h | 1 |
| Centimeters/second | cm/s | 27.777778 |
| Millimeters/second | mm/s | 277.777778 |
| Kilometers/second | km/s | 0.000278 |
| Meters/minute | m/min | 16.666667 |
| Imperial / Nautical | ||
| Miles/hour | mph | 0.621371 |
| Feet/second | ft/s | 0.911344 |
| Feet/minute | ft/min | 54.680665 |
| Inches/second | in/s | 10.936133 |
| Yards/second | yd/s | 0.303781 |
| Knots | kn | 0.539957 |
| Special | ||
| Mach (sea level) | Ma | 0.000816 |
| Speed of light | c | 9.265669e-10 |
Popular Speed Conversions
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78 Kilometers/second
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15,354,330.7087 Feet/minute
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20 Inches/second
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50.8 Centimeters/second
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30 Feet/second
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32.9184 Kilometers/hour
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2 Kilometers/hour
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109.3613 Feet/minute
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75 Millimeters/second
→
14.7638 Feet/minute
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97 Mach (sea level)
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1,980,487.8 Meters/minute
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82 Millimeters/second
→
2.7352e-10 Speed of light
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69 Feet/second
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0.021 Kilometers/second
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6 Yards/second
→
5.4864 Meters/second
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35 Kilometers/hour
→
1,913.8233 Feet/minute
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Common Scenarios
Speed conversion is closely linked to transportation, aviation, navigation, and sports. In China, speed limits use kilometers per hour (km/h), while in the US and UK, speedometers often use miles per hour (mph). In navigation and aviation, ships and aircraft use "knots."
History & Background
The elegant unit "knot" originated in the great age of sail. Sailors threw a wooden board tied to a rope with knots over the stern and counted the knots that slipped into the water over a set time to calculate speed.
Conversion Details
Speed conversion is based on meters per second (m/s).
Common conversions: 1 m/s = 3.6 km/h, 1 mph ≈ 1.609 km/h, 1 knot = 1.852 km/h.