Overtime Calculator
Separate total hours into regular and overtime portions and estimate gross pay.
How to use the Overtime Calculator
- Enter total hours, the regular-hour threshold, hourly rate and overtime multiplier.
- Review the values before calculating, especially the threshold, multiplier and employee eligibility that actually apply.
- Select Calculate to separate regular and overtime hours and estimate gross pay.
- Correct the inputs if the result looks unexpected; a common source of error is assuming a 40-hour threshold or 1.5 multiplier applies in every jurisdiction or contract.
What this calculator does
Separate total hours into regular and overtime portions and estimate gross pay. Its calculation is driven by total hours, the regular-hour threshold, hourly rate and overtime multiplier. The output is intended to separate regular and overtime hours and estimate gross pay, while workplace rules and source records remain external to the calculator.
The pay result is a gross mathematical estimate based only on the entered rates, hours and multipliers. It does not calculate withholding, benefits, deductions or every payroll rule.
Keep overtime arithmetic separate from overtime eligibility
The calculator can apply the threshold and multiplier you enter, but it cannot decide which hours legally qualify as overtime. Classification, jurisdiction, contracts and employer policy can change the applicable rule. Use the tool for arithmetic after you have identified the correct rule.
Calculation example
Example input: 45 hours; 40-hour threshold; $25 rate; 1.5 multiplier
Example result: $1,187.50 estimated gross pay.
Your result will change with total hours, the regular-hour threshold, hourly rate and overtime multiplier; check the threshold, multiplier and employee eligibility that actually apply before comparing it with another system.
How to interpret the result
Pay entitlements vary by jurisdiction, contract, classification and employer policy. Adjust the inputs to match the rules that actually apply.
Verify the threshold, multiplier and employee eligibility that actually apply, and do not rely on the result if you may be assuming a 40-hour threshold or 1.5 multiplier applies in every jurisdiction or contract.
Practical checks before using the result
- Verify the key assumption: the threshold, multiplier and employee eligibility that actually apply.
- Avoid a common error: assuming a 40-hour threshold or 1.5 multiplier applies in every jurisdiction or contract.
Official employment resources
Work-hour and pay rules vary by country, state or province, employee classification and agreement. The calculator keeps its assumptions editable; use official guidance to confirm which rule applies to your situation.
- U.S. Department of Labor - FLSA overtime pay
- GOV.UK - Calculating working hours
- Canada - Hours of work in federally regulated workplaces
- Fair Work Ombudsman Australia - Overtime pay
Calculation design and testing notes are documented in the Calculator Methodology and Accuracy Policy.