Can I convert knots?
Knots aren't included in the default set. Multiply knots by 1.852 to get km/h, then use the converter for other units.
Step-by-step walkthrough
Speed Converter Guide
Use this companion guide beside the interactive calculator to make sure you understand the “why” behind every click. Each section includes the classroom explanation, student-friendly language, and quick practice prompts.
Before you start
Collect the data points listed below and double-check their units. Keeping an organized “givens” list is one of the fastest ways to reduce math errors and impress exam graders.
- speed
- mph
- km/h
Detailed procedure
Step 1
Enter a speed value.
Step 2
Pick the unit that matches the value you entered.
Step 3
Read the equivalent speeds in the remaining units.
Teaching & troubleshooting tips
Why does m/s show repeating decimals?
Many conversions produce repeating decimals; the tool rounds to four places for readability.