Speed Converter
Free speed converter to instantly convert between km/h, mph, m/s, knots, and ft/s. Perfect for travel, aviation, sports, and science.
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Convert Speed Units Effortlessly
Whether you're comparing car speeds, running pace, wind velocity, or nautical speeds, our converter handles all common speed units instantly. Perfect for travel, sports, aviation, and scientific work.
Understanding Speed Units
Different industries and countries use different speed units. Cars in Europe use km/h while the US uses mph. Aviation and maritime use knots. Scientific work often uses m/s. Understanding these conversions is essential for international communication and accurate calculations.
Key Conversions
1 km/h = 0.621 mph = 0.278 m/sWhy Convert Speeds?
International Travel
Understand speed limits in different countries.
Sports
Compare speeds across different activities.
Navigation
Convert between knots and land-based units.
How to Use the Converter
Applications
Driving
Convert speed limits when traveling abroad.
Athletics
Compare running paces in different units.
Aviation
Convert flight speeds.
Science
Use m/s for physics calculations.
Frequently Asked Questions
A knot is one nautical mile per hour. Nautical miles are based on Earth's geometry (1 minute of latitude), making them useful for navigation. One knot equals about 1.15 mph or 1.85 km/h.