Calculate regular and overtime hours for a workweek
Enter total hours worked during one workweek and the regular-hour threshold you want to use. The overtime hours calculator assigns hours up to that threshold to regular time and any remaining hours to overtime. This is a user-configured calculation; it does not decide which threshold applies to your job.
Estimate gross pay from an hourly rate
Enter an hourly rate and overtime multiplier to estimate gross pay. The formula is regular hours × hourly rate, plus overtime hours × hourly rate × multiplier. Worked examples below show how the selected assumptions affect the result before taxes and deductions.
Understand the assumptions in a payroll hours calculator
Payroll calculations can depend on jurisdiction, worker classification, the defined workweek, pay agreements, and other factors. This tool only applies the threshold and multiplier you enter. It does not calculate taxes, deductions, daily overtime, premium rates, or legal eligibility; verify applicable requirements before using the estimate for payroll decisions.
Use a timesheet to total worked hours first
If you have clock-in and clock-out times, use a timesheet calculator to total the hours for each workweek before entering them here. For a two-week pay period, keep the weeks separate when checking overtime, then combine the weekly results for a pay-period estimate.
Regular hours, overtime hours, and the multiplier
This calculator starts from a weekly total you already know. It does not read clock-in times. Enter the hours worked in one workweek, the hourly rate, the regular-hour threshold, and the overtime multiplier. Hours up to the threshold are regular. Hours above it are overtime. Regular pay is regular hours times the rate. Overtime pay is overtime hours times the rate times the multiplier. A week of 45 hours, a $20 rate, a 40-hour threshold, and a 1.5 multiplier is 40 × $20 = $800 of regular pay and 5 × $20 × 1.5 = $150 of overtime pay, or $950 before taxes and deductions. Change any input and the split changes. The page will not choose 40 or 1.5 for you.
One workweek, not a pay period
Type the hours for a single workweek. A biweekly paycheck often covers two workweeks, and overtime is commonly figured inside each of those weeks. Do not add the two weeks and run 80 hours through a 40-hour threshold. A 50-hour week and a 30-hour week are 80 hours together, but the overtime is 10 hours in the first week and none in the second if the threshold is 40. Run this calculator twice, once per week, or use the biweekly timesheet, which applies the threshold to each week before it adds the period. The sum of the two gross estimates is the period estimate. It is still before tax.
What the threshold is allowed to be
Forty hours and time-and-a-half are familiar figures in United States discussions of weekly overtime. They are not a universal rule, and they are not hard-coded as the only legal answer. Some jobs use a different weekly cap, a daily cap, a different multiplier, or no overtime at all because of classification. This page multiplies the numbers you enter. If you set the threshold to 38 and the multiplier to 2, the arithmetic follows 38 and 2. If you set the rate to 0, you can see the hour split without a pay figure. That is useful when you only want to know how many hours sit above the line.
A second worked example
Week of 47.5 hours, rate $16.40, threshold 40, multiplier 1.5. Regular hours are 40. Overtime hours are 7.5. Regular pay is 40 × $16.40 = $656.00. Overtime pay is 7.5 × $16.40 × 1.5 = $184.50. Estimated gross pay is $840.50. The half hour matters: 7.5 is not 7. If your timesheet said 47 hours 30 minutes, convert it before you type. Thirty minutes is 0.50 decimal hours, not 0.30. The decimal hours converter does that single conversion. This page assumes the weekly total is already in decimal hours or in a whole-hour number you trust.
What is left out of the gross estimate
The result is hours times rates. It does not subtract tax, retirement, insurance, garnishments, or uniform deductions. It does not add a shift differential, a weekend premium, or a bonus. It does not apply two thresholds at once, such as daily overtime and weekly overtime with a rule against double counting. If both rules apply where you work, compute the daily overtime first from the timesheet, then decide with payroll which hours still count toward the weekly threshold. This calculator cannot see that policy. It also cannot see whether the person is eligible for overtime. Eligibility is a classification question, not a multiplication question.
Where the weekly total should come from
If you still have clock-in and clock-out times, total them on the weekly timesheet before you open this page. That sheet subtracts unpaid breaks and can handle a shift that crosses midnight. Bring only the finished weekly number here. If the pay period is two weeks long, either run this page once for each week or enter both weeks on the biweekly timesheet so the threshold is applied twice. Mixing a biweekly lump into this single-week form is the mistake that creates phantom overtime or hides real overtime. Label the result as an estimate when you share it, and keep the threshold and multiplier next to the number so a reviewer can see the assumption.
Daily overtime is a different split
Some workplaces pay extra after a set number of hours in a single day, sometimes with a higher multiplier after a second daily cap. A 10-hour day in that system is not “10 hours toward a 40-hour week” only. Part of the day may already be overtime before the week is added up. This calculator does not take daily rows. If you type 50 as the weekly total, it puts 10 hours above a 40-hour threshold even if 6 of those hours were already daily overtime that should not be counted twice. To avoid double counting you must know the rule. A common pattern is to remove the daily overtime hours first, then let only the remaining regular hours accumulate toward the weekly cap. Do that subtraction on the timesheet, then enter the adjusted weekly total here, or enter the raw total only when your rule is weekly and nothing else.
Rates that are not a single base rate
The hourly rate field is one number. If you earned $20 for some hours and $22 for others, a single rate will not reproduce the stub. One approach is to compute each rate group on its own: enter the hours that belong to $20, note the pay, then repeat for $22. That works only when overtime is also separated by those groups or when you already know which hours are the overtime hours. Weighted-average regular rates, piecework, and commissions change the overtime base in ways this multiplication does not model. When the stub uses a blended rate, take that blended rate from payroll and enter it here as the rate, instead of inventing a blend from two wages. The page will multiply whatever rate you provide. It will not compute the blend.
Write the four inputs next to the dollars
When you share the result, include weekly hours, rate, threshold, and multiplier beside the pay figure. A bare dollar amount cannot be checked. The same hours at a threshold of 35 produce a different split, and a reader who assumes 40 will think the page mis-multiplied. Keep the estimate labeled as gross and before tax. If you later add a deduction, do it outside this page so the calculator line stays reproducible. Two runs with the same four inputs should match. If they do not, one input changed, including a decimal hour that was retyped as if the digits after the point were minutes.
A zero-pay check of the hour split
Set the hourly rate to 0 when you want the hour split without a dollar figure. Forty-three hours with a threshold of 40 still shows 40 regular hours and 3 overtime hours. The pay lines stay at zero, which keeps the screenshot from being mistaken for a paycheck. Use that mode when you are explaining the threshold to someone else. Put the rate back when you need the gross estimate. If the overtime hours look too large, the weekly total you typed is probably a pay-period total. Divide the problem back into workweeks before you change the threshold to “make the overtime look right.” Changing the threshold to hide a data error produces a neat number and the wrong policy.
Related terms and how calculations work
- Workweek threshold
- The number of regular hours entered before this calculator assigns additional hours to overtime. The user supplies this assumption.
- Regular hours
- Hours up to the threshold entered in the calculator. They are multiplied by the entered base hourly rate.
- Overtime hours
- Hours above the selected threshold for the one workweek being calculated.
- Overtime multiplier
- The factor applied to the base hourly rate for overtime hours. For example, 1.5 means one and one-half times the entered base rate.
- Gross pay estimate
- Estimated pay before taxes, benefits, deductions, or other adjustments. The result is arithmetic only and does not establish legal pay requirements.
Practical examples
Estimate pay for 45 hours
Inputs: 45 hours, $20 per hour, a 40-hour threshold, and a 1.5 multiplier.
Calculation: Regular: 40 × $20 = $800. Overtime: 5 × $20 × 1.5 = $150. Add the two amounts.
Result: $950 estimated gross pay before taxes and deductions.
Calculate overtime hours only
Inputs: Enter 43 hours worked, a 40-hour threshold, and a $0 hourly rate to focus on the hour split.
Calculation: 43 total hours − 40 regular-hour threshold = 3 hours above the selected threshold.
Result: 40 regular hours and 3 overtime hours.
Frequently asked questions
How do I calculate overtime hours?
Enter total hours for one workweek and a regular-hour threshold. The calculator treats hours above that threshold as overtime hours.
How is overtime pay estimated?
Regular hours are multiplied by the hourly rate. Overtime hours are multiplied by the hourly rate and the overtime multiplier you enter; the two amounts are added for estimated gross pay.
Can I use this as a payroll hours calculator?
Use it as a math estimate, not as a determination of payroll obligations. Overtime rules can depend on location, worker classification, workweek definitions, and other factors this calculator does not evaluate.
Does the result include taxes or deductions?
No. The estimate is gross pay before taxes, benefits, deductions, overtime premiums beyond your chosen multiplier, or other payroll adjustments.