🔄 Unit Converter

Common Unit Conversions

Length Conversions

• 1 inch = 2.54 cm
• 1 foot = 30.48 cm = 0.3048 m
• 1 mile = 1.60934 km
• 1 yard = 0.9144 m
• 1 nautical mile = 1.852 km

Weight Conversions

• 1 pound (lb) = 0.453592 kg
• 1 kilogram = 2.20462 lbs
• 1 stone = 14 lbs = 6.35029 kg
• 1 ounce (oz) = 28.3495 g
• 1 metric ton = 1,000 kg = 2,204.62 lbs

Temperature Conversions

• °F to °C: (°F − 32) × 5/9
• °C to °F: (°C × 9/5) + 32
• °C to Kelvin: °C + 273.15
• Water boils: 100°C = 212°F = 373.15 K
• Body temperature: 37°C = 98.6°F

Volume Conversions

• 1 US gallon = 3.78541 litres
• 1 UK gallon = 4.54609 litres
• 1 litre = 1,000 ml
• 1 US cup = 236.588 ml
• 1 fluid ounce (US) = 29.5735 ml

Metric vs Imperial: A Quick Guide

The metric system (SI — International System of Units) is used by most of the world, including all of Europe, most of Asia, and scientific communities everywhere. It's base-10, making conversions simple (1 km = 1,000 m = 100,000 cm).

The imperial system is primarily used in the United States (and partially in the UK for some everyday measurements). Imperial units have irregular conversion factors (1 mile = 5,280 feet = 63,360 inches), which is why a unit converter is so useful.

Frequently Asked Questions

What is 5 feet in cm?

5 feet = 5 × 30.48 cm = 152.4 cm.

What is 100 km/h in mph?

100 km/h ÷ 1.60934 = 62.14 mph.

How many GB is 1 TB?

1 terabyte (TB) = 1,024 gigabytes (GB) in binary, or 1,000 GB in decimal (SI) notation. Hard drive manufacturers typically use the decimal definition; operating systems use binary.

What is 0°C in Fahrenheit?

0°C = (0 × 9/5) + 32 = 32°F. This is the freezing point of water.