255 in decimal is FF in hexadecimal
All conversions
| Unit | Symbol | Value |
|---|
How to Convert Decimal to Hex
Read the digits as a base-10 number and rewrite the same whole number in base 16. 255 in decimal is FF in hexadecimal. Type any value in the converter above for an instant answer, or use the chart below for the most common values.
This page is preset for decimal to hexadecimal conversions, but you can switch either list to any of the 39 units in the Numbers Converter, or go the other way with the Hex to Decimal converter.
Decimal to Hex conversion chart
| Decimal | Hex |
|---|---|
| 0 base 10 | 0 base 16 |
| 1 base 10 | 1 base 16 |
| 2 base 10 | 2 base 16 |
| 3 base 10 | 3 base 16 |
| 4 base 10 | 4 base 16 |
| 5 base 10 | 5 base 16 |
| 6 base 10 | 6 base 16 |
| 7 base 10 | 7 base 16 |
| 8 base 10 | 8 base 16 |
| 9 base 10 | 9 base 16 |
| 10 base 10 | A base 16 |
| 11 base 10 | B base 16 |
| 12 base 10 | C base 16 |
| 13 base 10 | D base 16 |
| 14 base 10 | E base 16 |
| 15 base 10 | F base 16 |
| 16 base 10 | 10 base 16 |
| 17 base 10 | 11 base 16 |
| 18 base 10 | 12 base 16 |
| 19 base 10 | 13 base 16 |
| 20 base 10 | 14 base 16 |
| 21 base 10 | 15 base 16 |
| 22 base 10 | 16 base 16 |
| 23 base 10 | 17 base 16 |
| 24 base 10 | 18 base 16 |
| 25 base 10 | 19 base 16 |
| 26 base 10 | 1A base 16 |
| 27 base 10 | 1B base 16 |
| 28 base 10 | 1C base 16 |
| 29 base 10 | 1D base 16 |
| 30 base 10 | 1E base 16 |
| 31 base 10 | 1F base 16 |
| 32 base 10 | 20 base 16 |
| 50 base 10 | 32 base 16 |
| 64 base 10 | 40 base 16 |
| 100 base 10 | 64 base 16 |
| 127 base 10 | 7F base 16 |
| 128 base 10 | 80 base 16 |
| 255 base 10 | FF base 16 |
| 256 base 10 | 100 base 16 |
| 500 base 10 | 1F4 base 16 |
| 512 base 10 | 200 base 16 |
| 1000 base 10 | 3E8 base 16 |
| 1024 base 10 | 400 base 16 |
| 4096 base 10 | 1000 base 16 |
| 65535 base 10 | FFFF base 16 |
Common Decimal to Hex conversions
- 255 in decimal is FF in hexadecimal
- 10 base 10 = A base 16
- 255 base 10 = FF base 16
- 1000 base 10 = 3E8 base 16
- 4096 base 10 = 1000 base 16
- 65535 base 10 = FFFF base 16
Popular numbers converters
How to Use the Decimal to Hex Converter
- Type a value in the From box and choose its unit.
- Pick the unit you want in the To list — the result updates as you type.
- Use the swap button to reverse the conversion, or type in the To box to convert backwards.
- Check the All conversions table to see your value in every unit; click a row to make it the target.
Frequently Asked Questions
How do I convert Decimal to Hex?
Read the digits as a base-10 number and rewrite the same whole number in base 16. For example, 255 in decimal is FF in hexadecimal. Type any decimal number in the converter above to get the hexadecimal value instantly.
What is the Decimal to Hex formula?
Read the digits as a base-10 number and rewrite the same whole number in base 16..
What is 10 in hexadecimal?
10 in decimal = A in hexadecimal.
What is 255 in hexadecimal?
255 in decimal = FF in hexadecimal.
What is 1000 in hexadecimal?
1000 in decimal = 3E8 in hexadecimal.
What is 4096 in hexadecimal?
4096 in decimal = 1000 in hexadecimal.
What is 65535 in hexadecimal?
65535 in decimal = FFFF in hexadecimal.
How do I convert Hex back to Decimal?
Use the swap button in the converter above, or open our Hex to Decimal converter. Read the digits as a base-16 number and rewrite the same whole number in base 10..
Is this Decimal to Hex converter accurate?
Yes. It uses exact unit definitions and double-precision maths, and you can show up to 15 significant digits. The table below is calculated with the same formula.
Can I convert Decimal to other numbers units?
Yes — pick any unit in the From and To lists above, or open the full Numbers Converter, which handles 39 numbers units.
Is the Decimal to Hex converter free?
Yes, it is free with no sign-up, and every conversion runs in your browser so nothing is sent to a server.