Converters

Decimal ↔ BinaryAny integer, show work, padding optional Decimal ↔ OctalAny integer, leading zeros option Decimal ↔ HexAny integer, prefix optional, case control Number BaseBase 2 to 36, custom prefix, batch mode Number to WordsOrdinal and cardinal, English and German Temperature°C, °F, K — live dual conversion Lengthmm, cm, m, km, in, ft, yd, mi Weightmg, g, kg, oz, lb, ton Speedm/s, km/h, mph, knots Data SizeBits to terabytes, SI and binary prefixes Areasq mm to sq mi, metric and imperial units Volumeml, L, fluid oz, cups, gallons Time ZonesConvert between 400+ IANA time zones CurrencyExchange rates, 150+ currencies, offline