Base / Radix Converter

Convert between 2/8/10/16 and any 2–36 bases, with BigInt for large numbers and grouped binary output.

How to use

  1. Type the number to convert in the "Value" box (e.g. 1010, FF).
  2. Choose "From base" and "To base" (any 2–36).
  3. Click "Convert"; the result shows grouped binary every 4 bits.
  4. Tip: BigInt handles arbitrarily long integers beyond the 2^53 limit.

FAQ

How large a number is supported?

BigInt is used, so any integer length is handled as long as memory allows, free of the 2^53 limit.

Why group the binary output?

Binary gets very long; grouping every 4 bits (a nibble) with spaces aids reading and manual checking.