Unit Converter
Convert length, weight, area, energy and data-storage units instantly: pick a category, enter a value and choose a unit to see it in every other unit at once.
Results
Results show up to 8 significant digits; very large or small values use scientific notation. Chi, jin, tael, ping and jia are traditional Taiwanese units; data storage offers both decimal (KB = 1000) and binary (KiB = 1024) units.
About unit conversion
This tool covers five categories: length (cm, m, km, inch, foot, mile, chi), weight (gram, kilogram, ounce, pound, jin, tael), area (square meter, hectare, acre, ping, jia), energy (joule, calorie, kcal, watt-hour, kWh, BTU) and data storage (bit, byte, KB/MB/GB/TB and KiB/MiB/GiB/TiB). Enter one value and instantly see its equivalent in every unit.
Common conversions include 1 inch = 2.54 cm, 1 mile = 1.609 km, 1 pound = 453.6 g, 1 ping = 3.306 m², 1 kWh = 3.6 MJ, 1 kcal = 4184 J and 1 GiB = 1.074 GB. All conversion runs in your browser; the values you enter are never uploaded or stored on a server.