Speed Conversion Calculator Information
How Speed Conversion Works
Speed can be measured in many units. The most common are meters per second (m/s), kilometers per hour (km/h), miles per hour (mph), feet per second (ft/s), knots (kt), and the speed of light (c). Each unit has a fixed relationship to the others.
- 1 m/s = 3.6 km/h = 2.23694 mph = 3.28084 ft/s = 1.94384 knots
- 1 km/h = 0.27778 m/s
- 1 mph = 0.44704 m/s
- 1 knot = 0.514444 m/s
Conversion Examples
60 mph = 96.5606 km/h
Example: Convert 100 km/h to mph and m/s
100 km/h × 0.27778 = 27.778 m/s
Why Convert Speeds?
- Travel: Convert speed limits and vehicle speeds between metric and imperial units.
- Science & Engineering: Standardize speed measurements for experiments and calculations.
- Sports: Compare running, cycling, or swimming speeds in different units.
- Everyday Life: Understand weather reports, treadmill speeds, and more.
Tips for Accurate Conversion
- Double-Check Units: Make sure you know which unit you are starting with and which you want to convert to.
- Use the Calculator: Avoid manual errors by using the tool for quick, accurate results.
- Be Precise: For science or engineering, use as many decimal places as needed.
Frequently Asked Questions (FAQ)
A: A knot is a unit of speed equal to one nautical mile per hour, commonly used in maritime and aviation contexts.
A: Speeds are always positive in real-world measurements, but negative values can be used in math or physics.
A: The calculator uses precise conversion factors and rounds results to two decimal places for clarity.
A: The speed of light (c) is exactly 299,792,458 meters per second. This calculator can convert to and from this value for scientific interest.
A: This calculator is for speed only. Velocity includes direction, which is not handled here.