Rounding up a number to nearest multiple of 5

Question

Does anyone know how to round up a number to its nearest multiple of 5? I found an algorithm to round it to the nearest multiple of 10 but I can't find this one.

This does it for ten.

double number = Math.round((len + 5)/ 10.0) * 10.0; 

Answer 1

To round to the nearest of any value

int round(double i, int v){     return Math.round(i/v) * v; } 

You can also replace Math.round() with either Math.floor() or Math.ceil() to make it always round down or always round up.

Answer 2

int roundUp(int n) {     return (n + 4) / 5 * 5; } 

Note - YankeeWhiskey's answer is rounding to the closest multiple, this is rounding up. Needs a modification if you need it to work for negative numbers. Note that integer division followed by integer multiplication of the same number is the way to round down.