Speed Converters
Browse our comprehensive collection of speed converters for m/s, km/h, mph, knots, Mach, speed of light, and more. Free online tools for science, engineering, travel, and everyday use.
Meters per Second to km/h
Convert m/s to kilometers per hour (1 m/s = 3.6 km/h).
metrickm/h to Meters per Second
Convert km/h to m/s (1 km/h = 0.277778 m/s).
metrickm/h to km/s
Convert kilometers per hour to kilometers per second (1 km/h = 0.000277778 km/s).
metrickm/s to km/h
Convert kilometers per second to km/h (1 km/s = 3600 km/h).
metricm/s to cm/s
Convert meters per second to centimeters per second (1 m/s = 100 cm/s).
metriccm/s to m/s
Convert centimeters per second to m/s.
metricm/min to m/s
Convert meters per minute to meters per second (1 m/min = 0.0166667 m/s).
metricm/s to m/min
Convert meters per second to meters per minute.
metricmph to ft/s
Convert miles per hour to feet per second (1 mph = 1.46667 ft/s).
imperialft/s to mph
Convert feet per second to mph (1 ft/s = 0.681818 mph).
imperialmph to ft/min
Convert miles per hour to feet per minute (1 mph = 88 ft/min).
imperialft/min to mph
Convert feet per minute to mph.
imperialmph to in/s
Convert miles per hour to inches per second (1 mph = 17.6 in/s).
imperialin/s to mph
Convert inches per second to mph.
imperialmph to yd/s
Convert miles per hour to yards per second (1 mph = 0.488889 yd/s).
imperialyd/s to mph
Convert yards per second to mph.
imperialKnots to mph
Convert knots to miles per hour (1 knot = 1.15078 mph).
nauticalmph to Knots
Convert miles per hour to knots (1 mph = 0.868976 knots).
nauticalKnots to km/h
Convert knots to kilometers per hour (1 knot = 1.852 km/h).
nauticalkm/h to Knots
Convert kilometers per hour to knots (1 km/h = 0.539957 knots).
nauticalKnots to m/s
Convert knots to meters per second (1 knot = 0.514444 m/s).
nauticalm/s to Knots
Convert meters per second to knots (1 m/s = 1.94384 knots).
nauticalKnots to ft/s
Convert knots to feet per second (1 knot = 1.68781 ft/s).
nauticalft/s to Knots
Convert feet per second to knots (1 ft/s = 0.592484 knots).
nauticalMach to km/h
Convert Mach number to km/h (Mach 1 ≈ 1225.04 km/h at sea level).
aviationkm/h to Mach
Convert km/h to Mach number (approximate, sea level).
aviationMach to mph
Convert Mach to miles per hour (Mach 1 ≈ 761.207 mph at sea level).
aviationmph to Mach
Convert mph to Mach number (approximate, sea level).
aviationMach to m/s
Convert Mach to meters per second (Mach 1 ≈ 340.29 m/s at sea level).
aviationm/s to Mach
Convert m/s to Mach number (approximate, sea level).
aviationMach to Knots
Convert Mach to knots (Mach 1 ≈ 661.47 knots at sea level).
aviationKnots to Mach
Convert knots to Mach number (approximate, sea level).
aviationSpeed of Light (c) to m/s
Convert speed of light to meters per second (c = 299,792,458 m/s).
scientificm/s to Speed of Light (c)
Convert meters per second to speed of light (c).
scientificc to km/s
Convert speed of light to kilometers per second.
scientifickm/s to c
Convert kilometers per second to speed of light.
scientificc to mph
Convert speed of light to miles per hour.
scientificmph to c
Convert miles per hour to speed of light.
scientificc to km/h
Convert speed of light to kilometers per hour.
scientifickm/h to c
Convert kilometers per hour to speed of light.
scientificmph to m/s
Convert miles per hour to meters per second (1 mph = 0.44704 m/s).
otherm/s to mph
Convert meters per second to mph (1 m/s = 2.23694 mph).
otherkm/h to ft/s
Convert kilometers per hour to feet per second (1 km/h = 0.911344 ft/s).
otherft/s to km/h
Convert feet per second to km/h (1 ft/s = 1.09728 km/h).
othermph to km/h
Convert miles per hour to kilometers per hour (1 mph = 1.60934 km/h).
otherkm/h to mph
Convert kilometers per hour to mph (1 km/h = 0.621371 mph).
otherkm/min to km/h
Convert kilometers per minute to kilometers per hour (1 km/min = 60 km/h).
otherkm/h to km/min
Convert kilometers per hour to km/min.
otherWhat Are Speed Converters?
Our Speed Converters collection provides a comprehensive suite of tools for converting between different speed and velocity units. Whether you're working on physics problems, calculating travel times, analyzing aviation or marine speeds, or just converting units for everyday use, these converters deliver accurate results with clear step-by-step explanations.
From metric units (m/s, km/h) and imperial units (mph, ft/s) to nautical units (knots), aviation units (Mach), scientific units (speed of light), and other common units, our tools cover the full spectrum of speed measurements.
How to Use This Directory
- Search: Type a keyword into the search bar to find specific converters by name or description.
- Filter by Category: Use the dropdown to narrow down to a specific speed unit type — each option shows the number of tools available.
- Click to Use: Each card links directly to the converter. Click on any card to start your conversion instantly.
- Explore Category Pages: Use the "Explore More Conversion Calculators" section to access dedicated pages for other unit types.
Why Use Our Speed Converters?
- Comprehensive Coverage: Covers metric, imperial, nautical, aviation, scientific, and other units.
- Accurate & Reliable: Uses exact conversion factors based on international standards.
- Free & Accessible: No registration, no fees — use any tool instantly on any device.
- Educational: Many tools show the conversion formula, helping you understand the relationships.
- Professional & Personal Use: Designed for engineers, scientists, students, travelers, and anyone needing speed conversions.
❓ Speed Converters FAQ
What types of speed conversions can I perform?
You can convert between metric units (m/s, km/h, km/s, cm/s), imperial/US units (mph, ft/s, ft/min, in/s, yd/s), nautical units (knots), aviation units (Mach), scientific units (speed of light), and other common units like km/min.
How do I convert meters per second to kilometers per hour?
Use our m/s to km/h converter. Multiply the value in m/s by 3.6 to get km/h, with step-by-step work shown.
How do I convert miles per hour to kilometers per hour?
Use our mph to km/h converter. Multiply mph by 1.60934 to get km/h, with detailed formula steps.
What is a knot and how is it different from mph?
A knot is a unit of speed equal to one nautical mile per hour, used in maritime and aviation. One knot equals 1.15078 mph. Our converters handle both.
How do I convert Mach to km/h?
Mach number depends on the speed of sound, which varies with altitude and temperature. Our converter uses the standard sea-level value (Mach 1 ≈ 1225.04 km/h).
How do I convert the speed of light to meters per second?
The speed of light (c) is exactly 299,792,458 m/s. Our converter uses this exact value for conversions.
Are these converters accurate for scientific and engineering work?
Yes, our converters use exact conversion factors and are suitable for scientific, engineering, and educational purposes.
How often are new speed converters added?
We regularly add new converters based on user requests. If you have a suggestion, please contact us.
Can I convert between any two speed units?
Yes, you can use individual converters for specific pairs, or use the universal speed converter if available. Each card links to a dedicated tool for that conversion pair.