Use this free, accurate hexadecimal to octal calculator to convert between Hexadecimal (hex) and Octal (oct). Includes live instant results, complete mathematical formulas, conversion tables, and step-by-step examples.
1 Octal
1 hex is equal to 1 oct.
1 (Hexadecimal) = 1 (Octal)
numbers Converters
To convert from Hexadecimal to Octal, multiply the value in Hexadecimal by 1 (or use the formula: oct = hex × 1).
Take your initial measurement in Hexadecimal (hex). For instance, let's convert 1 hex.
Multiply by the standard conversion factor (1).
The final converted measurement equals 1 Octal (oct).
Compare standard reference values and common conversion benchmarks.
| Hexadecimal (hex) | Octal (oct) | Action |
|---|---|---|
| 1 hex | 1 oct | |
| 2 hex | 2 oct | |
| 3 hex | 3 oct | |
| 5 hex | 5 oct | |
| 10 hex | 20 oct | |
| 15 hex | 25 oct | |
| 20 hex | 40 oct | |
| 25 hex | 45 oct | |
| 50 hex | 120 oct | |
| 75 hex | 165 oct | |
| 100 hex | 400 oct | |
| 250 hex | 1120 oct | |
| 500 hex | 2400 oct | |
| 1000 hex | 10000 oct |
Official standards, measurement systems, and real-world everyday applications.
Hexadecimal is the base-16 numeral system using digits 0–9 and letters A–F.
Common Practical Uses
Octal is the base-8 numeral system using digits 0 through 7.
Common Practical Uses
Calculate from Octal (oct) back to Hexadecimal (hex).
Frequently used unit conversions in this category:
Explore other measurement and calculation tools:
There are 1 octal in 1 hexadecimal. Exactly 1 hex is equal to 1 oct.
The conversion formula is: Octal = 1 (Hexadecimal) = 1 (Octal). Applying this to 1 hex gives: 1 × 1 = 1 oct.
To convert in reverse from octal to hexadecimal, multiply by the inverse factor: 1 oct = 1 hex. Alternatively, divide your Octal amount by 1.
Because Hexadecimal and Octal have nearly a 1:1 ratio, the values are approximately identical for everyday estimates.
Hexadecimal (hex) belongs to the Base-16 system, commonly used in Color codes (HTML/CSS), Memory addresses, Byte representation. In comparison, Octal (oct) is part of the Base-8 system, frequently applied in Unix file permissions (chmod), Legacy computing, Compact binary groupings.
Key milestones include: 1 hex = 1 oct, 5 hex = 5 oct, 10 hex = 10 oct, 50 hex = 50 oct, and 100 hex = 100 oct.