255 in decimal is 377 in octal
All conversions
| Unit | Symbol | Value |
|---|
Quick answer
To convert decimal to octal, read the digits as a base-10 number and rewrite the same whole number in base 8. For example, 255 in decimal is 377 in octal.
How to Convert Decimal to Octal
Read the digits as a base-10 number and rewrite the same whole number in base 8. 255 in decimal is 377 in octal. 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 octal conversions, but you can switch either list to any of the 39 units in the Numbers Converter, or go the other way with the Octal to Decimal converter.
Decimal to Octal conversion chart
| Decimal | Octal |
|---|---|
| 0 base 10 | 0 base 8 |
| 1 base 10 | 1 base 8 |
| 2 base 10 | 2 base 8 |
| 3 base 10 | 3 base 8 |
| 4 base 10 | 4 base 8 |
| 5 base 10 | 5 base 8 |
| 6 base 10 | 6 base 8 |
| 7 base 10 | 7 base 8 |
| 8 base 10 | 10 base 8 |
| 9 base 10 | 11 base 8 |
| 10 base 10 | 12 base 8 |
| 11 base 10 | 13 base 8 |
| 12 base 10 | 14 base 8 |
| 13 base 10 | 15 base 8 |
| 14 base 10 | 16 base 8 |
| 15 base 10 | 17 base 8 |
| 16 base 10 | 20 base 8 |
| 17 base 10 | 21 base 8 |
| 18 base 10 | 22 base 8 |
| 19 base 10 | 23 base 8 |
| 20 base 10 | 24 base 8 |
| 21 base 10 | 25 base 8 |
| 22 base 10 | 26 base 8 |
| 23 base 10 | 27 base 8 |
| 24 base 10 | 30 base 8 |
| 25 base 10 | 31 base 8 |
| 26 base 10 | 32 base 8 |
| 27 base 10 | 33 base 8 |
| 28 base 10 | 34 base 8 |
| 29 base 10 | 35 base 8 |
| 30 base 10 | 36 base 8 |
| 31 base 10 | 37 base 8 |
| 32 base 10 | 40 base 8 |
| 50 base 10 | 62 base 8 |
| 64 base 10 | 100 base 8 |
| 100 base 10 | 144 base 8 |
| 127 base 10 | 177 base 8 |
| 128 base 10 | 200 base 8 |
| 255 base 10 | 377 base 8 |
| 256 base 10 | 400 base 8 |
| 500 base 10 | 764 base 8 |
| 512 base 10 | 1000 base 8 |
| 1000 base 10 | 1750 base 8 |
| 1024 base 10 | 2000 base 8 |
| 4096 base 10 | 10000 base 8 |
| 65535 base 10 | 177777 base 8 |
| 511 base 10 | 777 base 8 |
Common Decimal to Octal conversions
- 255 in decimal is 377 in octal
- 8 base 10 = 10 base 8
- 64 base 10 = 100 base 8
- 100 base 10 = 144 base 8
- 255 base 10 = 377 base 8
- 511 base 10 = 777 base 8
Popular numbers converters
How to Use the Decimal to Octal 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 Octal?
Read the digits as a base-10 number and rewrite the same whole number in base 8. For example, 255 in decimal is 377 in octal. Type any decimal number in the converter above to get the octal value instantly.
What is the Decimal to Octal formula?
Read the digits as a base-10 number and rewrite the same whole number in base 8.
What is 8 in octal?
8 in decimal = 10 in octal.
What is 64 in octal?
64 in decimal = 100 in octal.
What is 100 in octal?
100 in decimal = 144 in octal.
What is 255 in octal?
255 in decimal = 377 in octal.
What is 511 in octal?
511 in decimal = 777 in octal.
How do I convert Octal back to Decimal?
Use the swap button in the converter above, or open our Octal to Decimal converter. Read the digits as a base-8 number and rewrite the same whole number in base 10.
Is this Decimal to Octal 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 Octal converter free?
Yes, it is free with no sign-up, and every conversion runs in your browser so nothing is sent to a server.