255 (decimal) = 11111111 (binary)
All conversions
| Unit | Symbol | Value |
|---|
About the Numbers Converter
Convert numbers between binary, octal, decimal, hexadecimal and every base from 2 to 36 — exact for whole numbers of any size. The base unit is the decimal; every one of the 39 units is defined against it, so any pair converts directly in a single step.
How to Convert decimal to binary
Read the digits as a base-10 number and rewrite the same whole number in base 2.
decimal to binary table
| Decimal | Binary | Octal | Hexadecimal |
|---|---|---|---|
| 1 | 1 | 1 | 1 |
| 2 | 10 | 2 | 2 |
| 5 | 101 | 5 | 5 |
| 8 | 1000 | 10 | 8 |
| 10 | 1010 | 12 | A |
| 15 | 1111 | 17 | F |
| 16 | 10000 | 20 | 10 |
| 32 | 100000 | 40 | 20 |
| 64 | 1000000 | 100 | 40 |
| 100 | 1100100 | 144 | 64 |
| 255 | 11111111 | 377 | FF |
| 1000 | 1111101000 | 1750 | 3E8 |
Common numbers conversions
- 255 (decimal) = 11111111 (binary)
- 255 (decimal) = 377 (octal)
- 255 (decimal) = FF (hexadecimal)
- 255 (decimal) = 73 (base-36)
Popular numbers converters
How to Use the Numbers 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 binary?
Type your decimal number in the From box and the binary value appears instantly. Read the digits as a base-10 number and rewrite the same whole number in base 2. For example, 255 (decimal) = 11111111 (binary).
How do I convert binary to decimal?
Type the binary number in the From box, choose decimal as the target and the result appears instantly. Examples: 1010 in binary is 10 in decimal; 11111111 in binary is 255 in decimal; 1000000000000 in binary is 4096 in decimal.
How do I convert hexadecimal to decimal?
Type the hexadecimal number in the From box, choose decimal as the target and the result appears instantly. Examples: A in hexadecimal is 10 in decimal; FF in hexadecimal is 255 in decimal; 1000 in hexadecimal is 4096 in decimal.
How do I convert decimal to hexadecimal?
Type the decimal number in the From box, choose hexadecimal as the target and the result appears instantly. Examples: 10 in decimal is A in hexadecimal; 255 in decimal is FF in hexadecimal; 4096 in decimal is 1000 in hexadecimal.
How do I convert binary to hexadecimal?
Type the binary number in the From box, choose hexadecimal as the target and the result appears instantly. Examples: 1010 in binary is A in hexadecimal; 11111111 in binary is FF in hexadecimal; 1000000000000 in binary is 1000 in hexadecimal.
How do I convert octal to decimal?
Type the octal number in the From box, choose decimal as the target and the result appears instantly. Examples: 12 in octal is 10 in decimal; 377 in octal is 255 in decimal; 10000 in octal is 4096 in decimal.
How do I convert decimal to octal?
Type the decimal number in the From box, choose octal as the target and the result appears instantly. Examples: 10 in decimal is 12 in octal; 255 in decimal is 377 in octal; 4096 in decimal is 10000 in octal.
What is the base unit for numbers conversions?
The decimal. Every one of the 39 units in this converter is defined relative to the decimal, so any two units convert directly in one step.
How many units does the Numbers Converter support?
The Numbers Converter handles 39 units (number bases). You can convert between any two of them, or see your value in every unit at once in the "All conversions" table.
How accurate is this numbers converter?
Conversions use exact definitions wherever one exists (for example the international inch is exactly 2.54 cm and the pound exactly 0.45359237 kg) and calculate in double precision. Choose how many significant digits to show — up to 15.
How do I use the Numbers Converter?
Type a value in the From box and pick its unit, then pick the unit you want in the To list — the answer updates as you type. Use the swap button to reverse the conversion, or open the "All conversions" table to see the value in every unit.
Is the Numbers Converter free, and does it work offline?
Yes, it is completely free with no sign-up. Once the page has loaded, every conversion runs in your browser, so nothing is sent to our servers. It's one of 71 common and other unit converters on House of Convert.