# Decimal to Hexadecimal Converter

To use this **decimal to hex converter** tool, you have to type a decimal value like 79 into the left field below,
and then hit the Convert button. Therefore, you can convert up to 19 decimal characters (max. value of 9223372036854775807) to hex.

### Decimal to hex conversion result in base numbers

## Decimal System

**Decimal** number system is the most commonly used and the most familiar one to the general public.
It is also known as *Base 10 numbering* system since it is based on 10 following symbols: 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.
In decimal system, every digit has its own position as well as the decimal point.
I.e. the number 356.74 has 4 in the Hundredths position, 7 in the Tenths position,
6 in the Units position, 5 in the Tens position, and 3 in the Hundreds position.
*Decimal number system* is also one of the oldest known numeral system,
which is historically related to Hindu-Arabic numeral system.

## Hex System

**Hex**, or *hexadecimal*, is a number system of base 16.
This number system is especially interesting because in our casually used decimal system
we have only 10 digits to represent numbers. As hex system has 16 digits,
the extra needed 6 digits are represented by the first 6 letters of English alphabet.
Hence, **hex** digits are 0,1,2,3,4,5,6,7,8 and 9 A, B, C, D, E, F.
This number system is the most commonly used in mathematics and information technologies.
I.e. in html programming colors can be represented by a 6-digit *hexadecimal number*: FFFFFF represents white,
000000 represents black, and so on.

#### Decimal to hex conversion examples

- (79)
_{10}= (4F)_{16} - (120)
_{10}= (78)_{16} - (1728)
_{10}= (6C0)_{16}

#### Decimal Hex Conversion Chart

Decimal | Hexadecimal |
---|---|

0 | 0 |

1 | 1 |

2 | 2 |

3 | 3 |

4 | 4 |

5 | 5 |

6 | 6 |

7 | 7 |

8 | 8 |

9 | 9 |

10 | A |

11 | B |

12 | C |

13 | D |

14 | E |

15 | F |