Unit Conversion Guide: Common Conversions for Construction and Everyday Use

Length Conversions

• 1 inch = 2.54 cm = 25.4 mm
• 1 foot = 12 inches = 30.48 cm = 0.3048 m
• 1 yard = 3 feet = 0.9144 m
• 1 mile = 5,280 feet = 1,609 m = 1.609 km
• 1 meter = 3.281 feet = 39.37 inches

Area Conversions

• 1 sq ft = 144 sq in = 0.0929 m²
• 1 sq yard = 9 sq ft
• 1 acre = 43,560 sq ft = 4,047 m²
• 1 sq meter = 10.76 sq ft
• 1 hectare = 2.471 acres = 10,000 m²

Volume Conversions

• 1 cubic yard = 27 cubic feet = 0.765 m³
• 1 gallon = 4 quarts = 8 pints = 128 fl oz = 3.785 liters
• 1 liter = 0.264 gallons = 33.81 fl oz
• 1 cubic foot = 7.481 gallons

Weight/Mass Conversions

• 1 pound = 16 oz = 453.6 grams = 0.4536 kg
• 1 kilogram = 2.205 lbs = 35.27 oz
• 1 ton (short) = 2,000 lbs = 907 kg
• 1 tonne (metric) = 2,205 lbs = 1,000 kg

Temperature

• °F to °C: (°F − 32) × 5/9
• °C to °F: (°C × 9/5) + 32
• Quick reference: 0°C = 32°F | 20°C = 68°F | 37°C = 98.6°F | 100°C = 212°F