Convert Octal to Hexadecimal
Live bidirectional calculator for Octal (OCT) and Hexadecimal (HEX) with verified formula and conversion charts.
Number Bases4 units
How the Calculation Works (Radix Base Conversion)
Arbitrary-precision integer conversion using BigInt representation.
Octal to Hexadecimal Conversion Table
Precomputed values for quick reference and printing.
| Octal | Hexadecimal |
|---|---|
| 1 OCT | 1 HEX |
| 2 OCT | 2 HEX |
| 4 OCT | 4 HEX |
| 10 OCT | 8 HEX |
| 12 OCT | A HEX |
| 17 OCT | F HEX |
| 20 OCT | 10 HEX |
| 40 OCT | 20 HEX |
| 100 OCT | 40 HEX |
| 144 OCT | 64 HEX |
| 200 OCT | 80 HEX |
| 377 OCT | FF HEX |
| 400 OCT | 100 HEX |
| 1000 OCT | 200 HEX |
| 2000 OCT | 400 HEX |
| Hexadecimal | Octal |
|---|---|
| 1 HEX | 1 OCT |
| 2 HEX | 2 OCT |
| 4 HEX | 4 OCT |
| 8 HEX | 10 OCT |
| A HEX | 12 OCT |
| F HEX | 17 OCT |
| 10 HEX | 20 OCT |
| 20 HEX | 40 OCT |
| 40 HEX | 100 OCT |
| 64 HEX | 144 OCT |
| 80 HEX | 200 OCT |
| FF HEX | 377 OCT |
| 100 HEX | 400 OCT |
| 200 HEX | 1000 OCT |
| 400 HEX | 2000 OCT |
About Octal (OCT)
The Octal system is a positional numeral system with radix 8.
History: Used extensively in modern computing systems.
Common Uses: Data processing, hardware registers, and digital logic.
About Hexadecimal (HEX)
The Hexadecimal system is a positional numeral system with radix 16.
History: Used extensively in computer architecture.
Common Uses: Software development, memory addressing, and data encoding.
โ Frequently Asked Questions
What is the difference between Octal and Hexadecimal?
Octal (OCT) and Hexadecimal (HEX) are positional numeral systems with different radix bases. In computer architecture, values are converted between bases using arbitrary-precision binary/hex representations.
How do I convert Octal to Hexadecimal?
Parse each digit of the Octal input according to its base powers, then repeatedly divide or format the integer into the target Hexadecimal radix digits.