Split regular and overtime hours and estimate total weekly pay.
Mathematically exact
Interactive calculator
This calculator becomes interactive when JavaScript is available. The page still provides its method, limits and related tools without JavaScript.
How it works
Enter the requested values, review the input assumptions, and calculate the result. The result uses deterministic calendar or arithmetic rules on the values you enter. Dates are normalized before calculation, and invalid inputs are rejected.
Result classification
Mathematically exact. The result uses deterministic calendar or arithmetic rules on the values you enter. Dates are normalized before calculation, and invalid inputs are rejected.
Limitations
Exact for the stated rule and valid inputs; it does not decide legal, medical, contractual or policy questions.
Frequently asked questions
How does this tool work?
The result uses deterministic calendar or arithmetic rules on the values you enter. Dates are normalized before calculation, and invalid inputs are rejected.
What should I verify?
Exact for the stated rule and valid inputs; it does not decide legal, medical, contractual or policy questions.
Practical guide
How to use the Overtime Calculator
Reviewed 27 July 2026
Enter the known values.Use the date, time, place or duration requested above.
Check the assumptions.Confirm time zone, weekend, inclusion and rounding choices when shown.
Read and reuse the result.Copy, share or continue to a related tool without retyping unnecessary information.
Common uses
The Overtime Calculator is useful for shift planning, timecards, overtime estimates and staffing discussions.
Edge cases to check
Pay particular attention to unpaid breaks, overnight shifts, local labor rules and employer rounding policies.