Speed Unit Converter
Convert between all major speed units: m/s, km/h, mph, knots, ft/s, in/s, Mach, speed of light, and more.
The Ultimate Speed Unit Converter
Our speed unit converter is a comprehensive tool that accurately transforms measurements between all major speed units: meters per second (m/s), kilometers per hour (km/h), miles per hour (mph), knots, feet per second (ft/s), inches per second (in/s), Mach, speed of light (c), and centimeters per second (cm/s). This is essential for science, engineering, travel, and more.
Get instant, precise conversions for physics, engineering, automotive, aviation, and everyday speed calculations. Supports decimal inputs and provides results to appropriate decimal places.
Input Speed
Any speed unit
Precise Conversion
Mathematical accuracy
Converted Result
Accurate speed output
Speed Converter
Conversion Formula
Speed Conversion At Your Fingertips
Convert between km/h, mph, m/s, knots, ft/s, in/s, Mach and even the speed of light in seconds. Whether you need to translate car speeds for a road trip, calculate wind velocity for sailing, check aircraft Mach numbers, or compare scientific constants, just enter your value and select units.results appear instantly.
Common searches we cover include “mph to km/h,” “Mach to m/s,” “knots to km/h,” “m/s to ft/s,” and “c to mph.” Our clear formulas and interactive table let you verify each conversion step and explore ranges at a glance.
- Instantly switch between metric, imperial, and specialized units
- Precision up to 9 decimal places or scientific notation
- Ideal for automotive, aviation, marine, physics, and everyday use
- Fully responsive, no ads, and respects your privacy