Octal Calculator
Octal Calculator
Octal Calculator
Octal arithmetic operations (base-8)
0 in decimal
0 in decimal
Perform octal arithmetic operations (base-8). Essential for Unix permissions and digital systems.
Key Features
Octal arithmetic (+, -, ×, ÷)
Digits 0-7 only
Decimal conversion
Formula display
Real-time calculation
How to Use This Tool
Enter octal number 1
Enter octal number 1
Enter octal number 2
Enter octal number 2
Select operation
Select operation
Click Calculate
Click Calculate
View octal and decimal results
View octal and decimal results
Check conversion factors
Check conversion factors
Use Cases
Unix file permissions (chmod)
ASCII character codes
Digital systems
Binary conversion
Computer programming
Legacy systems
Frequently Asked Questions
What is octal?
Base-8 system (0-7)
Unix chmod?
Uses octal for permissions
How to convert?
Use parseInt(x, 8)
Common usage?
File permissions, character codes
Tool Information
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