Complete Guide to Unit Conversions: Length, Weight, Volume & More
Unit conversion is the process of changing a quantity from one unit to another. The key is knowing the conversion factor between units.
Length: 1 meter = 100 cm = 1000 mm = 3.281 ft = 39.37 in = 0.001 km = 0.000621 mile. To convert, multiply by the factor. Example: 5 km = 5 × 1000 = 5000 m.
Weight: 1 kg = 1000 g = 2.205 lb = 35.27 oz. Temperature is special: °F = (°C × 9/5) + 32, and K = °C + 273.15. You can't just multiply — you need the formula.
Volume: 1 liter = 1000 mL = 0.264 gal (US) = 33.81 fl oz. Area: 1 m² = 10000 cm² = 10.764 ft². Speed: 1 m/s = 3.6 km/h = 2.237 mph.
The Zoma Calculator platform has 30+ unit converters covering length, weight, area, volume, temperature, speed, pressure, energy, data storage, and more — all with live conversion as you type.
Pro tip: When converting, always include units in your calculation to catch mistakes. If the units don't cancel correctly, you've made an error.