How to Use the Weekly Overtime Pay Calculator
Unlike some countries that set a hard legal ceiling on weekly work hours, the United States has no such cap under federal law. The Fair Labor Standards Act (FLSA) doesn't limit how many hours a non-exempt employee can work in a week — it only requires that employers pay a premium of at least 1.5 times the regular hourly rate for every hour worked beyond 40 in that week. This calculator applies that rule directly: enter your total hours worked and your hourly rate, and it splits your pay into regular hours (up to 40) and overtime hours (anything beyond 40, at time-and-a-half).
This is a fundamentally different mechanism from a legal hours cap — there's no "illegal" number of hours here, only a pay premium that kicks in once you cross the 40-hour threshold. So working 55 hours in a week is completely legal under federal law; it simply means the employer owes overtime pay on the 15 hours above 40. That distinction matters if you're used to systems with an absolute weekly hours limit — the FLSA works entirely through compensation, not through capping hours.
Keep in mind that FLSA overtime protections only apply to non-exempt employees; many salaried workers who meet certain duties and pay-threshold tests are classified as exempt and aren't entitled to this overtime premium. Some states also layer on additional rules (like daily overtime after 8 hours), so check your state's labor department for anything beyond this federal baseline.
Frequently Asked Questions
No. Under the federal Fair Labor Standards Act (FLSA), there is no maximum number of hours an adult employee can work in a week. The law only requires overtime pay at 1.5x for hours worked beyond 40 in a week for non-exempt employees.
Only non-exempt employees are guaranteed FLSA overtime. Many salaried employees who meet certain duties and salary thresholds are classified as exempt and are not entitled to overtime pay.