Speed Converter
Convert between miles per hour, kilometers per hour, meters per second, knots, and more. Perfect for travel, aviation, sports, and scientific calculations.
Quick conversions:
1 Kilometers per Hour =
Common Speed Conversions
Metric to Imperial
- 1 km/h0.621 mph
- 100 km/h62.14 mph
- 1 m/s2.237 mph
Imperial to Metric
- 1 mph1.609 km/h
- 60 mph96.56 km/h
- 1 knot1.852 km/h
Reference Speeds
FAQs
How do I convert km/h to mph?▼
To convert kilometers per hour to miles per hour, multiply by 0.621371. For example, 100 km/h × 0.621371 = 62.14 mph.
What is a knot and when is it used?▼
A knot is a unit of speed equal to one nautical mile per hour (1.852 km/h or 1.151 mph). It's primarily used in maritime and aviation contexts.
How do I convert m/s to km/h?▼
To convert meters per second to kilometers per hour, multiply by 3.6. For example, 10 m/s × 3.6 = 36 km/h.
What is the speed of sound?▼
The speed of sound at sea level (20°C) is approximately 343 m/s, 1,235 km/h, or 767 mph. This is also known as Mach 1.
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