HEX to Decimal Converter Online — Convert Base-16 to Base-10

Convert hexadecimal (hex) numbers to standard decimal values online. Handles 0x prefixes, uppercase and lowercase letters A-F.

✓ Converts hex strings (with or without 0x prefix) to base-10 numbers

✓ Supports case-insensitive input (a-f or A-F)

✓ Calculates positional weights of 16^n

✓ Instant output with 1-click clipboard copy

How It Works

  1. Enter a hexadecimal string (e.g. FF or 0x1A4).
  2. The parseInt(hex, 16) function calculates the total decimal sum.
  3. Copy the output number.