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# Datatype Conversion

Posted on Oct 30, 2019

Once in a while you will want to convert data type of one type to another type. Data type conversion is also known as Type casting.

## Converting int to float #

To convert `int`

to `float`

you can use the `float()`

function.

1 2 3 | ```
>>> i = 10
>>> float(i)
10.0
``` |

## Converting float to int #

To convert `float`

to `int`

you need to use `int()`

function.

1 2 3 | ```
>>> f = 14.66
>>> int(f)
14
``` |

## Converting string to int #

To convert `string`

to `int`

, use the `int()`

function.

1 2 3 | ```
>>> s = "123"
>>> int(s)
123
``` |

** tip: **

If string contains non numeric character then `int()`

will throw `ValueError`

exception.

## Converting number to string #

To convert a number to string use the `str()`

function.

1 2 3 4 5 6 | ```
>>> i = 100
>>> str(i)
"100"
>>> f = 1.3
str(f)
'1.3'
``` |

## Rounding numbers #

Rounding numbers is done via the `round()`

function.

**Syntax**: `round(number[, ndigits])`

1 2 3 | ```
>>> i = 23.97312
>>> round(i, 2)
23.97
``` |

Next we will cover control statements.

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