Convert between hexadecimal, decimal, binary, and octal instantly. Enter a whole number in any base, see matching values, and copy results.
Use this hexadecimal converter to switch between hexadecimal, decimal, binary, and octal instantly. Enter a whole number in any base and the other number systems update at the same time.
This page is useful for hex to decimal, decimal to hex, hex to binary, binary to hex, and quick number-base checks in programming, electronics, memory addresses, color values, and study.
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Hexadecimal lookup table
| Decimal number (positive) | Hexadecimal number |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 8 |
| 9 | 9 |
| 10 | A |
| Decimal number (positive) | Hexadecimal number |
|---|---|
| 11 | B |
| 12 | C |
| 13 | D |
| 14 | E |
| 15 | F |
| 16 | 10 |
| 32 | 20 |
| 64 | 40 |
| 128 | 80 |
| 256 | 100 |
| 512 | 200 |
Hexadecimal Converter FAQ
What does this hexadecimal converter do?
This tool converts between hexadecimal, decimal, binary, and octal in one place. Enter a whole number in any field and the matching values update instantly.
When would I use a decimal to hexadecimal or hexadecimal to decimal converter?
These conversions are common in programming, digital electronics, memory addresses, color codes, bit-level work, and school exercises. A quick hex converter is useful when you need to verify base-16 values or convert them back to decimal.
Does this page also show binary values?
Yes. You can enter a hexadecimal value to convert it to binary, decimal, and octal, or use the binary field to convert back to hexadecimal.
Does this page convert octal numbers?
Yes. The octal field works both as an input and an output, so you can convert hex to octal, octal to hex, or compare octal with decimal and binary.
