Speed Converter

Speed Converter

### What is a Speed Converter?
A speed converter translates values from one speed or velocity unit to another, such as converting miles per hour (mph) to kilometers per hour (kph), meters per second (m/s), knots or Mach. It helps ensure accuracy across different measurement systems.

### Why Use This Converter?
Different fields use different units: motor vehicle speedometers often display miles per hour or kilometers per hour; aviation uses knots; scientific calculations use meters per second. Manually converting by multiplying by conversion factors is error‑prone. This tool automates conversions instantly and accurately.

### How to Use the Speed Converter
1. Select the unit of the input value.
2. Enter your speed value in the input field.
3. Choose the desired output unit.
4. Click the Convert button to see the result.
5. Swap units or try new values as needed. All calculations occur locally and are not stored.

### Supported Units
- Meters per second (m/s)
- Kilometers per hour (km/h)
- Miles per hour (mph)
- Knots (nautical miles per hour)
- Feet per second (ft/s)
- Mach (speed of sound)
- ...and more.

### Features & Benefits
- Accurate conversions between multiple speed and velocity units.
- Quick and easy to use with no registration.
- Works on mobile devices, tablets and desktops.
- Allows switching units and entering decimal or fractional values.
- Privacy friendly: no data is sent to a server.

### Use Cases
- Drivers and cyclists checking speed conversions between mph and km/h.
- Pilots and sailors converting knots to km/h or mph.
- Engineers and physicists converting speeds into SI units for calculations.
- Sports enthusiasts comparing running pace across units.

### Frequently Asked Questions
**Which units are supported?**  
Our converter supports common speed units including m/s, km/h, mph, knots, ft/s and Mach.

**Can I convert negative speeds?**  
Speeds are typically non‑negative. Entering a negative value will simply invert the conversion but has no physical meaning.

**Is there a limit on input size?**  
You can convert very large numbers; extremely high values may overflow but typical speeds are handled easily.

**Is my data stored?**  
No. Conversions occur client‑side in your browser. We do not store or transmit your inputs.

**Is the tool free?**  
Yes. Use it as often as you like without cost.

### Conclusion
Our Speed Converter makes it simple to convert between various speed and velocity units. Whether you’re comparing car speedometers, studying physics, or planning a voyage, this tool ensures you get accurate conversions quickly.