Number Formatter
Free online number format converter, thousands separator and scientific notation
Number Format Types
Decimal: standard number with thousands separators (1,234,567.89). Scientific: exponential notation (1.234e+6). Hexadecimal: base-16 representation (0x12D687). Binary: base-2 representation. Octal: base-8 representation. Engineering: scientific notation with exponents that are multiples of 3.
How to Format Numbers
Enter a number in any format. The tool displays all available conversions simultaneously. This is useful for converting between number bases, understanding large numbers, and formatting values for display.
▶How do I convert decimal to hexadecimal?
Enter the decimal number and the tool shows the hexadecimal equivalent. You can also go the other direction — enter a hex number (with or without 0x prefix) to see the decimal value.
▶What is engineering notation?
Engineering notation is like scientific notation but uses powers of 10 that are multiples of 3 (e.g., 1.234e+3 instead of 1.234e+6), aligning with SI prefixes (kilo, mega, giga).