Developer website: MacHouse
UConvert is a free and useful conversion tool developed by MacHouse. UConvert covers such fields as Area, Computer, Currency, Length, Temperature, Time and Weight. The units handled by UConvert includes Centimeter, Meter, Kilometer, Are, Acre, Hectare, Inch, Foot, Yard, Mile, Rod, Light Year, Celsius, Fahrenheit, Kelvin, Rankine, Réaumur, Delisle, Newton, Rømer, Seconds, Minute, Hour, Day, Week, Month, Year, Milligram, Decigram, Gram, Kilogram, Grain, International Avoirdupois Ounce, International Troy Ounce, International Avoirdupois Pound, International Troy Pound, Metric Ton, Short Ton, Long Ton, Byte (Octet), Kilobyte, Megabyte, Gigabyte, Terabyte, Petabyte, Exabyte, Bit, Kilobit, Megabit, Gigabit, Terabit, Petabit, Exabit and more.
*Previously available here