Convert numbers to English words (e.g. 1234 to one thousand two hundred thirty-four).
It converts positive integers into their English word form (e.g. 42 → forty-two, 1000 → one thousand).
Words to Numbers
Convert English number words to numeric form (e.g. one thousand two hundred to 1200).
Roman Numeral Converter
Convert between Roman numerals and decimal numbers. Supports standard subtractive notation (IV, IX, XL, etc.).
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal. Supports any base from 2 to 36.
BCD Converter
Convert between BCD (Binary-Coded Decimal), decimal, octal, and hexadecimal.