About Hexadecimal to Decimal conversion
Each hexadecimal position is a power of sixteen. Expanding those positions into decimal values explains how color channels, machine codes, and other hexadecimal values relate to ordinary quantities.
How to convert Hexadecimal to Decimal
Enter a valid hexadecimal number in the calculator above for an instant result. To understand the calculation by hand, follow these steps:
- Assign powers of 16 from right to left, beginning with 16⁰.
- Convert letters A–F to values 10–15.
- Multiply every digit by its place value and add the totals.
Hexadecimal to Decimal conversion example
Example: 2D₁₆ → 45₁₀. D means 13, so 2 × 16¹ + 13 × 16⁰ = 32 + 13 = 45.
Use the calculator to verify the example, then try a value of your own. It accepts upper- and lowercase letters for hexadecimal input.