Unit Conversion Guide: Metric and Imperial

Unit conversion is essential for cooking, travel, and science.

Metric vs Imperial

Metric uses base-10. Imperial uses irregular conversions.

Key Conversions

• 1 inch = 2.54 cm
• 1 mile = 1.609 km
• 1 pound = 0.4536 kg
• 1 gallon = 3.785 liters

Dimensional Analysis

Multiply by conversion factors that equal 1. Units cancel like algebra.