Number Tools
Converters and calculators for numbers: translate between binary, octal, decimal and hexadecimal bases, calculate percentages and discounts, convert measurement units, write numbers as Roman numerals and generate UUID v4 values for test data.
6 tools
In this category
Number Base Converter
Convert numbers between binary, octal, decimal, hexadecimal, and custom bases
Percentage Calculator
Multiple percentage calculations — find percentages, changes, and increases
Unit Converter
Convert between length, weight, and temperature units
Roman Numeral Converter
Convert between Roman numerals and Arabic numbers bidirectionally
UUID Generator
Generate UUID v4 strings instantly — single or batch, with uppercase toggle
Number Formatter
Format numbers with thousands separators, currency symbols, scientific notation, and locale support
Useful for programmers debugging bitwise operations, students in class, and anyone working out discounts and proportions.