Speed Converter
Convert between meters per second, kilometers per hour, miles per hour, and knots with precision. Free online speed converter tool.
This free tool allows you to convert between different units of speed including meters per second (m/s), kilometers per hour (km/h), miles per hour (mph), and knots. Simply enter your value and select the units to convert from and to.
How This Tool Works
Our speed converter uses precise conversion factors to convert between different units of speed:
- 1 Kilometer per Hour = 0.277778 Meters per Second
- 1 Mile per Hour = 0.44704 Meters per Second
- 1 Knot = 0.514444 Meters per Second
- 1 Foot per Second = 0.3048 Meters per Second
The calculator ensures accuracy by first converting the input value to meters per second (the base unit), then converting to the desired output unit.
Frequently Asked Questions
What is a knot and why is it used?
A knot is a unit of speed equal to one nautical mile per hour (approximately 1.15078 mph or 1.852 km/h). It is commonly used in maritime navigation and aviation because it is directly related to the circumference of the Earth.
Why do different countries use different speed units?
Different countries have adopted different systems of measurement historically. The United States uses miles per hour (mph), while most other countries use kilometers per hour (km/h). Scientific measurements often use meters per second (m/s).
How accurate is this speed converter?
Our speed converter provides results with 6 decimal places of precision, using standard conversion factors recognized by international measurement organizations.
Tips and Best Practices
For the most accurate speed conversions:
- Use meters per second for scientific calculations
- Use kilometers per hour for road speeds in most countries
- Use miles per hour for road speeds in the US and UK
- Use knots for maritime and aviation speeds