# Divide two integers resulting into a float

Suppose I want to divide two integer variables and put the result into a float. In order to prevent integer division do I have to program like this:

``````    int i = 6312;
int j = 258;
float f;
f = i;
f = i/j;
``````

Or can I straightforward program like below and the compiler makes sure it is handled the 'proper' way:

``````    f = i/j;
``````
• why don't you run a test? – jsotola Jan 5 at 23:43

## 1 Answer

Cast the integers to float before doing the calculation.

``````float f = float(i) / float(j);
``````

or

``````float f = (float) i / (float) j;
``````

Always be clear how the calculation should be done, so the compiler will do what you want it to do.

• or `float f = (float) i / j;` – Juraj Jan 6 at 6:39
• @Juraj, that relies on the compiler to do a float calculation when a float and a int are involved. I prefer to make it clear for someone reading the code and for the compiler what is going on without having to think about it. – Jot Jan 6 at 9:12