Length & Distance
Measure and convert lengths in metric and imperial systems
Start with the basics and progress through 2 lessons. Each lesson builds on the previous one.
0 of 2 lessons done
Test Your Knowledge
10 questions, new mix each time (from 34)
In This Topic (2 lessons)
Introduction to Length
Learn what length is and how we measure it using different units.
Metric Length Units
Learn to measure and convert between millimeters, centimeters, meters, and kilometers.
Converting between length units is essential for science, cooking, construction, and international communication. Whether working within the metric system, imperial system, or converting between them, understanding conversion factors and methods is a practical life skill.
What You'll Learn
- Convert within the metric system
- Convert within the imperial system
- Convert between metric and imperial units
- Use conversion factors and dimensional analysis
- Solve real-world conversion problems
Frequently Asked Questions
How do metric conversions work?
Metric conversions move the decimal point. Each prefix is a power of 10: kilo (1000), base unit (1), centi (0.01), milli (0.001).
What are the key imperial conversions?
12 inches = 1 foot, 3 feet = 1 yard, 5280 feet = 1 mile. These are not based on powers of 10.
How do I convert between metric and imperial?
Use conversion factors: 1 inch = 2.54 cm, 1 mile ≈ 1.6 km. Multiply or divide based on which unit you want.