Speed Converter - Convert Speed & Velocity Units
Free online speed converter for metric, imperial, nautical and other speed systems. Convert km/h, mph, knots, and more instantly.
Speed Converter
Common Conversions
1 Kilometer per Hour (km/h) =0.621 Mile per Hour (mph)
1 Meter per Second (m/s) =3.6 Kilometer per Hour (km/h)
1 Mile per Hour (mph) =1.609 Kilometer per Hour (km/h)
1 Knot =1.852 Kilometer per Hour (km/h)
1 Speed of Sound =1,235 Kilometer per Hour (km/h)
1 Foot per Second (ft/s) =1.097 Kilometer per Hour (km/h)
What is a Speed Converter?
A speed converter is a tool that converts measurements between different units of speed and velocity. Whether you need to convert metric units like km/h and m/s, imperial units like mph, nautical units like knots, or special speeds like the speed of light and sound, our converter provides accurate instant results.
Key Features
- Convert between 13+ different speed units
- Supports metric, imperial, nautical, and special speed systems
- Instant conversion with high precision
- Quick swap between units
- Common conversion reference table included
How to Use
- Enter the speed value you want to convert
- Select the unit you're converting from
- Select the unit you're converting to
- View the instant conversion result
Common Use Cases
- Driving: Convert speed limits between km/h and mph
- Aviation: Calculate aircraft speeds in knots and mph
- Marine Navigation: Convert nautical speeds for sailing and boating
- Sports: Track running, cycling, or racing speeds in different units
- Science: Work with precise velocity measurements in physics and engineering