Speed Converter
Convert between major speed units with detailed formulas. Enter a value, select units, and click Convert.
Popular Speed Conversions
About Our Speed Converter
The Speed Converter is a comprehensive tool for converting between major speed and velocity units used worldwide. Whether you're working in automotive, aviation, marine navigation, sports, or scientific applications, our converter provides accurate conversions with detailed formulas and step-by-step calculations.
Supported Speed Units
Our speed converter supports six fundamental speed units commonly used across different industries and regions:
- Kilometers per hour (km/h): Standard metric unit for vehicle speeds
- Miles per hour (mph): Imperial unit commonly used in the US and UK
- Meters per second (m/s): SI base unit for velocity in scientific applications
- Feet per second (ft/s): Imperial unit used in engineering and ballistics
- Knots: Nautical speed unit for ships and aircraft
- Mach: Speed relative to the speed of sound, used in aviation
Key Features
Our speed converter offers comprehensive features for accurate velocity calculations:
- Bidirectional Conversion: Convert from any unit to any other unit
- High Precision: Accurate calculations with appropriate decimal places
- Formula Display: Shows the mathematical conversion formula
- Step-by-Step Calculations: Detailed breakdown of conversion process
- Popular Examples: Pre-filled common speed conversions
- Swap Function: Quick reversal of conversion direction
- Copy Results: Easy sharing of conversion results
- Input Validation: Ensures accurate measurements and prevents errors
- Mobile-Friendly: Fully responsive design for all devices
- Professional Accuracy: Precise calculations for professional use
How to Use the Speed Converter
- Enter the speed value you want to convert
- Select the source unit from the "From" dropdown
- Select the target unit from the "To" dropdown
- Click "Convert Speed" to get your result
- Review the conversion result with detailed calculations
- Use the swap button to quickly reverse the conversion
- Copy results or try popular conversion examples
Speed Conversion Formulas
Understanding the mathematical relationships between speed units helps in learning physics and verifying results. Here are the conversion formulas used by our calculator:
Metric to Imperial Conversions
km/h to mph: mph = km/h × 0.621371
m/s to ft/s: ft/s = m/s × 3.28084
Example: 100 km/h = 100 × 0.621371 = 62.14 mph
Scientific Unit Conversions
m/s to km/h: km/h = m/s × 3.6
ft/s to mph: mph = ft/s × 0.681818
Example: 10 m/s = 10 × 3.6 = 36 km/h
Nautical and Aviation Conversions
Knots to km/h: km/h = knots × 1.852
Mach to km/h: km/h = Mach × 1,234.8 (at sea level, 20°C)
Example: 50 knots = 50 × 1.852 = 92.6 km/h
Common Conversion Factors
- 1 km/h = 0.621371 mph = 0.277778 m/s = 0.539957 knots
- 1 mph = 1.609344 km/h = 0.44704 m/s = 0.868976 knots
- 1 m/s = 3.6 km/h = 2.236936 mph = 1.943844 knots
- 1 knot = 1.852 km/h = 1.150779 mph = 0.514444 m/s
- 1 Mach ≈ 1,234.8 km/h = 767.269 mph = 343 m/s (standard conditions)
Applications of Speed Conversions
Speed conversions have numerous practical applications across various fields and everyday situations:
Automotive and Transportation
- International Travel: Converting speed limits between countries
- Vehicle Specifications: Understanding car performance in different units
- Racing: Comparing lap times and speeds across different racing series
- Traffic Engineering: Designing roads and speed limits
Aviation and Aerospace
- Flight Planning: Converting between ground speed and airspeed
- Aircraft Performance: Understanding speed specifications
- Weather Reports: Converting wind speeds for flight safety
- Supersonic Flight: Working with Mach numbers
Marine and Navigation
- Ship Navigation: Converting between knots and other units
- Weather Routing: Understanding current and wind speeds
- Port Operations: Speed restrictions in different units
- Sailing: Boat speed and wind speed conversions
Sports and Recreation
- Running and Cycling: Converting pace and speed measurements
- Motor Sports: Understanding speed records and performance
- Water Sports: Boat and water speed conversions
- Winter Sports: Skiing and snowboarding speed measurements
Our Speed Converter provides the accuracy and convenience needed for all these applications, from simple everyday conversions to complex engineering calculations. The tool's detailed formulas and step-by-step calculations make it suitable for both educational and professional use.