Hex to Decimal Converter
Convert any hexadecimal number to decimal instantly — with the full step-by-step working shown. Free, fast, no sign-up.
Only hex digits allowed (0-9, A-F).
Decimal result
Step-by-step calculation
| Digit | Position | Value (16n) | Contribution |
|---|---|---|---|
| Total | |||
How to convert hex to decimal
- Write down the hex number and number each digit's position from right to left, starting at 0.
- Multiply each digit's value (0-9 = 0-9, A-F = 10-15) by 16 raised to the power of its position.
- Add all the results together — that's your decimal number.
Example: 1A3₁₆ = (1 × 16²) + (10 × 16¹) + (3 × 16⁰) = 256 + 160 + 3 = 419.
Frequently asked questions
How do I convert hex to decimal?
Multiply each hex digit by 16 raised to its position power (from 0 at the right) and sum the results. Or just use the converter above — it shows every step.
What is FF in decimal?
FF₁₆ = 255 in decimal.
Can this converter handle large hex numbers?
Yes — it supports hex numbers of any length with full precision.
Need the reverse? Try our decimal to hex converter.