Conversion Tables & Formulas

Handy reference for common conversions.

Length

• 1 in = 2.54 cm
• 1 ft = 0.3048 m
• 1 mi = 1.609344 km
• 1 m = 100 cm = 39.37 in

Mass / weight

• 1 lb = 0.453592 kg
• 1 oz = 28.3495 g
• 1 kg = 1000 g ≈ 2.205 lb

Volume

• 1 US gal = 3.785 L
• 1 UK gal = 4.546 L
• 1 L = 1000 mL

Temperature

°F = (°C × 9⁄5) + 32       °C = (°F − 32) × 5⁄9

Area

• 1 ft² = 0.092903 m²
• 1 m² ≈ 10.764 ft²

For live conversion of any value, use the tounits.com converter.