Unit Conversion Complete Guide

Unit conversion is a fundamental skill for science, cooking, travel, and daily life.

Length Conversions

Metric System

• 1 kilometer (km) = 1,000 meters (m)
• 1 meter (m) = 100 centimeters (cm)
• 1 centimeter (cm) = 10 millimeters (mm)

Imperial to Metric

• 1 inch = 2.54 cm
• 1 foot = 30.48 cm
• 1 yard = 0.9144 m
• 1 mile = 1.609 km

Weight Conversions

Metric System

• 1 kilogram (kg) = 1,000 grams (g)
• 1 gram (g) = 1,000 milligrams (mg)

Imperial to Metric

• 1 ounce (oz) = 28.35 g
• 1 pound (lb) = 453.6 g = 0.4536 kg

Temperature Conversions

Formulas

Celsius to Fahrenheit:

F = (C × 9/5) + 32

Fahrenheit to Celsius:

C = (F - 32) × 5/9

Quick Reference

CelsiusFahrenheit

|---------|------------|

0°C32°F (freezing) 20°C68°F (room temp) 37°C98.6°F (body temp) 100°C212°F (boiling)

Volume Conversions

Metric

• 1 liter (L) = 1,000 milliliters (mL)

Imperial

• 1 gallon = 3.785 L
• 1 cup = 236.6 mL

Quick Conversion Tips

1. Km to Miles: Multiply by 0.62

2. Miles to Km: Multiply by 1.6

3. Kg to Lbs: Multiply by 2.2

4. Lbs to Kg: Divide by 2.2

Use our Unit Converter for instant, accurate conversions.