This free online income calculator will calculate your over-time rate of pay based on your regular hourly rate, multiplied by the OT multiplier that applies to your job (time and a half, double time, triple time, etc.).
Plus, this calculator will also calculate the total gross overtime wages for a given number of OT hours worked. So if you want to know how much OT pay you will receive, just enter the number of hours and the calculator will instantly calculate it for you.
Finally, the calculator will even estimate your total annual overtime wages based on the number of OT hours you work per pay period, and on your pay period type.