# Convert Octal to Decimal

**Octal Number:**

[ Input a octal number like 377 in the following field and click the Convert button. ]

**Decimal number:**

**Conversion: Octal to Decimal**

**Octal Number System:**

The octal numeral system, or oct for short, is the base-8 number system, and uses the digits 0 to 7. Octal numerals can be made from binary numerals by grouping consecutive binary digits into groups of three (starting from the right).

**Decimal Number System:**

The decimal numeral system (also called base-ten and occasionally called denary) has ten as its base, which, in decimal, is written 10, as is the base in every positional numeral system. It is the numerical base most widely used by modern civilizations.

## Octal to Decimal conversion table

Octal | Decimal |
---|---|

0 | 0 |

1 | 1 |

2 | 2 |

3 | 3 |

4 | 4 |

5 | 5 |

6 | 6 |

7 | 7 |

10 | 8 |

11 | 9 |

12 | 10 |

13 | 11 |

14 | 12 |

15 | 13 |

16 | 14 |

17 | 15 |

20 | 16 |

**Previous: ** Convert Octal to Binary

**Next:**
Convert Octal to Hexadecimal

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