Common conversions
| From | To | Multiply by |
|---|---|---|
| Feet | Meters | 0.3048 |
| Miles | Kilometers | 1.609344 |
| Pounds | Kilograms | 0.45359237 |
| Square feet | Square meters | 0.09290304 |
| Acres | Square feet | 43,560 |
| US gallons | Liters | 3.785411784 |
Temperature
Temperature scales have different zero points, so they need a formula rather than a single multiplier:
°C = (°F − 32) × 5 ÷ 9 °F = °C × 9 ÷ 5 + 32 K = °C + 273.15
Square feet and square meters in real estate
Listings in the United States use square feet, while most other countries use square meters. One square meter is about 10.76 square feet, so a 1,500 sq ft home is about 139 m². To compare price per square foot with price per square meter, multiply the per-square-foot price by 10.764.
US and imperial units
Volume units here are US customary measures. A US gallon (3.785 L) is smaller than a UK imperial gallon (4.546 L), and a US fluid ounce is slightly larger than an imperial one. Length and weight units are the same in both systems.
Frequently asked questions
How many meters are in a foot?
Exactly 0.3048 meters, by international agreement since 1959. One meter is about 3.281 feet.
How do I convert Fahrenheit to Celsius?
Subtract 32, then multiply by 5/9. For example, 68 °F is (68 − 32) × 5/9 = 20 °C.
How many square feet are in an acre?
43,560 square feet, which is about 4,047 square meters or 0.405 hectares.
Is a US ton the same as a metric ton?
No. A US (short) ton is 2,000 pounds, about 907 kg. A metric ton (tonne) is 1,000 kg, about 2,205 pounds.
Last reviewed: 2026-10-10