Numbers & Units

Convert integers and arbitrary-precision numbers between binary (base 2), octal (base 8), decimal (base 10), hexadecimal (base 16), and custom radix bases (2–36).

Convert physical measurements across metric and imperial systems including length, mass/weight, area, volume, temperature, and speed.

Convert digital data storage sizes between bytes, decimal SI units (KB, MB, GB, TB, PB), and binary IEC units (KiB, MiB, GiB, TiB, PiB).

Calculate bitwise logic (AND, OR, XOR, NOT, NAND, NOR, XNOR, shifts) across 8/16/32/64-bit widths with binary visualizer and truth tables.

Two-way converter between standard Roman numerals (I, V, X, L, C, D, M) and Arabic integers with subtractive notation and strict syntax validation.