Velocity•Live Bidirectional•100% Client-Side
Speed Converter
Convert velocity between kilometers per hour (km/h), miles per hour (mph), meters per second (m/s), and knots.
km/h
mph
37.282272
Unit Equivalence:1 Kilometer per hour = 0.621371 Mile per hour(1 mph = 1.609344 km/h)
60 Kilometer per hour (km/h) in All Speed & Velocity Units
Meter per secondm/s
16.666667Kilometer per hourkm/h
60Mile per hourmph
37.282272Knotkn
32.397408Foot per secondft/s
54.680665Mach (at sea level)Ma
0.048978Conversion Formula & Standards
Conversions follow International System of Units (SI) and ISO standard constants.
Target Speed = (Input Speed × From Ratio) / To Ratio
How to Use Speed Converter
01
Input your speed value.
02
Choose from km/h, mph, m/s, knots, ft/s, or Mach.
03
View instant conversions across all transportation and aviation units.
Frequently Asked Questions
What is 1 knot in mph and km/h?
1 knot (1 nautical mile per hour) equals exactly 1.852 km/h or approximately 1.15078 mph.
What is Mach 1?
Mach 1 is the speed of sound in dry air at sea level and 15°C: roughly 340.29 meters per second, 1,225 km/h, or 761.2 mph.
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