Overtime Calculator
Editorial Review
Reviewed for formula accuracy, plain-language explanations, and calculator limitations by DP Tech Studio.
Reference sources
Important: Overtime treatment varies by country, state, employer policy, contract, and whether bonuses or breaks are included. Use this as an estimate only.
What the Overtime Calculator Shows You
Enter your hourly rate, your standard weekly hours, the total hours you actually worked, and the overtime multiplier that applies to your role. The calculator splits your pay into regular earnings and overtime earnings, then adds them together to show your total for the week.
The formula behind it: Total Pay = (Regular Hours × Rate) + (Overtime Hours × Rate × Multiplier). The result makes it straightforward to verify your payslip or estimate what a busy week will cost before approving the hours.
Worked Example
Regular hours per week: 40
Total hours worked: 48
Overtime multiplier: 1.5×
Regular pay: 40 × $20 = $800
Overtime hours: 48 − 40 = 8 hrs
Overtime pay: 8 × $20 × 1.5 = $240
Total pay for the week: $800 + $240 = $1,040
Try different multipliers to match your contract. Some employers pay 2× for weekend work or 2.5× for public holidays — the dropdown covers all three common rates.
How Overtime Rules Differ by Country
The right multiplier to use depends on where you work and what your contract says. Here is a quick country-by-country summary:
- United States — Under the FLSA, non-exempt employees earn at least 1.5× their regular rate for all hours above 40 per week. Some states like California also apply daily overtime after 8 hours, which can mean extra hours qualify sooner.
- India — The Factories Act requires 2× pay for overtime hours. The daily limit is 9 hours and the weekly limit is 48 hours before overtime kicks in.
- United Kingdom — There is no statutory right to an overtime rate above the National Minimum Wage, but most employment contracts specify one. Workers must still receive at least minimum wage when overtime pay is averaged across all hours.
- European Union — The Working Time Directive caps average weekly hours at 48 (including overtime), though individual member states set their own pay rules within that framework.
If you're unsure which rate applies to you, check your employment contract or speak to your HR team before using this result for payroll purposes.
Overtime Pay vs. Time Off in Lieu
Not every employer pays cash for overtime. Some offer time off in lieu (also called comp time) — for every extra hour worked, you receive equivalent future leave instead of a higher payslip.
In many public sector organisations this is standard and legally permitted. In the US private sector, comp time for non-exempt employees is generally not allowed under federal law — cash payment is required. If your employer offers comp time, you can still use this calculator to see the monetary value of what you're trading, which helps you judge whether the arrangement is fair.
Tips for Employees Checking Their Overtime Pay
- Cross-check your payslip — Enter your details here, then compare the result with your payslip total. Discrepancies are worth querying with your employer.
- Track hours precisely — Use the Work Hours Calculator on this site to get exact daily totals, then add them up to get your weekly worked total before entering it here.
- Clarify the threshold — Some contracts start overtime after 37.5 hours, others after 40. Enter the correct regular-hours figure so the overtime calculation splits in the right place.
- Weekend and holiday rates may differ — Many employers use a different multiplier for Sunday or bank holiday work than they use for regular weekday overtime. Run the calculation separately for each rate if needed, then add the results.