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Octal to Decimal Converter

Convert octal numbers to decimal easily

Octal to Decimal Conversion
Octal (OCT)
Decimal (DEC)
Common Number Values
Related Number Conversions
OCT to HEX HEX to DEC OCT to BIN BIN to DEC
Number System Basics
Decimal (Base 10): 0-9
Binary (Base 2): 0-1
Octal (Base 8): 0-7
Hexadecimal (Base 16): 0-9, A-F
Conversion Result
10 OCT = 8 DEC
Base 8 → Base 10
Input Type
Octal (Base 8)
Output Type
Decimal (Base 10)
Number System Conversion
Base 8 ↔ Base 10
System Comparison
From System
Octal (OCT)
Base: 8
To System
Decimal (DEC)
Base: 10
Common Number Conversions
DEC to BIN BIN to DEC DEC to HEX HEX to DEC BIN to HEX HEX to BIN
Quick Reference
Decimal Binary Octal Hexadecimal
0 0 0 0
1 1 1 1
2 10 2 2
3 11 3 3
4 100 4 4
5 101 5 5
6 110 6 6
7 111 7 7
8 1000 10 8
9 1001 11 9
10 1010 12 A
15 1111 17 F
16 10000 20 10
31 11111 37 1F
32 100000 40 20
63 111111 77 3F
64 1000000 100 40
127 1111111 177 7F
128 10000000 200 80
255 11111111 377 FF

Related Number Conversions

10000101
133
BIN → DEC
10110
22
BIN → DEC
67
37
OCT → HEX
D6
214
HEX → DEC
144
1100100
OCT → BIN
337
11011111
OCT → BIN
56
2E
OCT → HEX
1100000
96
BIN → DEC
E4
228
HEX → DEC
134
5C
OCT → HEX

Octal to Decimal Converter | Number Converter

Convert 10 from Octal to Decimal. Octal number 10 = 8 in Decimal. Easy number system conversion calculator for Octal to Decimal.

Octal to Decimal Conversion

Convert octal numbers to decimal easily with our accurate number system converter. This conversion is essential for various programming, mathematical, and technical applications.

Conversion Information

Base: 8 → 10
Valid Digits: 0-7
Example: 10 OCT = 8 DEC

Common Octal to Decimal Conversions

Octal (OCT) = Decimal (DEC) Description
1 1 One
2 2 Two
4 4 Four
10 8 Ten
16 14 Sixteen
32 26 Thirty-two
64 52 Sixty-four
100 64 One hundred
255 173 Two fifty-five

Understanding Octal and Decimal

Octal (OCT)

Base-8 number system.

• Base-8 number system

• Uses 8 digits: 0 through 7

• Each octal digit represents 3 binary digits

• Commonly used for Unix file permissions

Decimal (DEC)

Base-10 number system.

• Human-readable number format

• Easy for calculations and comparisons

• Standard for most mathematical operations

• Essential for understanding binary/hex values

Why Convert Octal to Decimal?

This conversion is particularly useful for:

  • Programming and software development
  • Computer science education
  • Digital electronics and hardware design
  • Technical documentation and debugging

Conversion Method

How Octal to Decimal Conversion Works

The conversion process involves these steps:

  1. Validate the input octal number
  2. Convert to decimal (base 10) as an intermediate step
  3. Convert from decimal to decimal
  4. Format and display the result

Our converter handles all these steps automatically, providing instant and accurate results for any valid octal input.

Need Other Number Conversions?

Try these related number system conversions:

DEC to BIN BIN to DEC DEC to HEX HEX to DEC BIN to HEX HEX to BIN DEC to OCT
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