Speed Converter

What is Speed Converter?

Speed Converter is a free online tool that converts between different velocity and speed units instantly. Convert kilometers per hour to miles per hour, meters per second to knots, and more.

Why Would You Need to Convert Speed?

• Travel planning: Understand speed limits in different countries
• Aviation: Convert between knots and other speed units
• Sports: Compare athletic speeds across different metrics
• Science: Work with meters per second in physics
• Maritime: Convert ship speeds between units

How to Convert Speed - Step by Step

1. Enter the value: Type the speed you want to convert
2. Select source unit: Choose km/h, mph, m/s, etc.
3. Select target unit: Choose the unit to convert to
4. Get result: See the converted speed instantly

Key Features

• Common units: km/h, mph, m/s, knots, and more
• Instant conversion: Results appear as you type
• High precision: Accurate decimal calculations
• Easy interface: Simple unit selection
• Free to use: No registration required

Tips for Best Results

• 1 mph is approximately 1.609 km/h
• Knots are used in aviation and maritime - 1 knot = 1.852 km/h
• Mach numbers depend on altitude and temperature

Frequently Asked Questions

How do I convert km/h to mph?

Divide kilometers per hour by 1.609 to get miles per hour. For example, 100 km/h ≈ 62.14 mph.

What is a knot?

A knot equals one nautical mile per hour, approximately 1.852 km/h or 1.151 mph.

What is the speed of sound?

At sea level, the speed of sound is approximately 343 m/s, 1,235 km/h, or 767 mph (Mach 1).