# Multiply an integer and a Float in Python Last updated: Jul 9, 2022 Photo from Unsplash

## Multiply an integer and a Float in Python#

Use the multiplication operator to multiply an integer and a float in Python, e.g. `my_int * my_float`. The multiplication result will always be of type `float`.

main.py
```Copied!```my_int = input('Enter your favorite number: ')
print(my_int)  # 👉️ '5'

my_float = 2.2

# 👇️ convert string to int
result = int(my_int) * my_float
print(result)  # 👉️ 11.0

# 👇️ multiplying int and float always returns float
print(3.3 * 5)  # 👉️ 16.5
``````

The first example uses the `input()` function to get an integer from the user.

The input function takes an optional `prompt` argument and writes it to standard output without a trailing newline.

The function then reads the line from input, converts it to a string and returns the result.

Note that the `input()` function always returns a string, even if the user enters a number.

You can pass the string to the `int()` class to convert it to an integer.

main.py
```Copied!```my_int = input('Enter your favorite number: ')
print(my_int)  # 👉️ '5'

my_float = 2.2

result = int(my_int) * my_float
print(result)  # 👉️ 11.0
``````

The result of multiplying a float and an integer is always going to be a float.

main.py
```Copied!```print(2.2 * 5)  # 👉️ 11.0

print(3.3 * 5)  # 👉️ 16.5
``````

You can use the `round()` function if you need to round the result to N digits precision after the decimal point.

main.py
```Copied!```print(3.14 * 5)  # 👉️ 15.700000000000001
print(3.14 * 6)  # 👉️ 18.84

print(round(3.14 * 5, 1))  # 👉️ 15.7
print(round(3.14 * 6, 1))  # 👉️ 18.8
``````

The round function takes the following 2 parameters:

NameDescription
`number`the number to round to `ndigits` precision after the decimal
`ndigits`the number of digits after the decimal the number should have after the operation (optional)

The `round` function returns the number rounded to `ndigits` precision after the decimal point.

If `ndigits` is omitted, the function returns the nearest integer.

main.py
```Copied!```print(3.14 * 5)  # 👉️ 15.700000000000001
print(3.14 * 6)  # 👉️ 18.84

print(round(3.14 * 5))  # 👉️ 16
print(round(3.14 * 6))  # 👉️ 19
``````

If you just want to drop the decimal from the number, pass the float to the `int()` class.

main.py
```Copied!```print(int(1.1))  # 👉️ 1
print(int(1.9))  # 👉️ 1
``````

The int class returns an integer object constructed from the provided number or string argument.

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