Here is a method that I use a lot when I need to loop a length of any kind
trace(numberLoop(103754, 3)); //2 trace(numberLoop(686.9384, 17.53)); //3.268399999999957 trace(numberLoop(Math.PI*13/6, Math.PI*2)); //0.5235987755982991 rad - radToDegree == 0.5235987755982991*180/Math.PI -> 30.000000000000014º trace(numberLoop(-2187.4, 2)); //0.599999999999909 function numberLoop(n:Number, t:Number):Number { if(t<=0){ throw new Error("Total must be greater thant 0"); } return (n%t+t)%t; }