Overtime Calculator: Pay, Time and a Half & OT Rates

How to use this overtime calculator

Most overtime mistakes are not math errors. They happen because nobody runs the math at all. A manager waves through an extra shift, the cook says yes to one more night, and three months later the labor line sits 12% over budget with no obvious culprit.

This overtime pay calculator turns that question into a number you can plan around. Enter the hourly rate and the weekly hours; it gives you regular pay, overtime pay at time and a half (or whatever multiplier you set), and the combined total. Flip on team mode and you see what the same shift pattern costs across the whole crew over a year. Every line is shown, so you can audit the result instead of trusting a black box.

Run it before you greenlight an extra shift, while you are redrawing a schedule, or when you just want to sanity-check what payroll is about to bill you.

How to Calculate Overtime Pay

The overtime pay formula is short. Take the regular hourly rate, multiply it by the overtime rate (1.5 for time and a half), and apply that to every hour worked past the threshold:

Overtime pay = hourly rate × 1.5 × overtime hours

At $20 an hour the overtime rate is $30, so eight overtime hours pay $240. Regular pay covers the first 40 hours of the week; anything past that is where the multiplier lands. How much overtime pay you owe comes down to three numbers: the hourly rate, the hours over the line, and the multiplier your state or union contract requires. The calculator above runs it for you, but the formula is worth keeping in your head so you can catch a payroll slip before it ships.

Time and a Half Pay by Hourly Rate

Time and a half is simply 1.5 times the hourly rate. Here is what that comes to at common wages, plus the overtime pay for a typical 10 hours over the week.

Want a rate that is not on the table, or a double-time multiplier? Enter it in the overtime calculator above and the breakdown updates instantly.

What the calculator does for you

You enter two numbers, the hourly rate and the hours worked that week, and the tool sorts the rest: which hours are regular, which ones cross into overtime, and what each bucket costs. It works as an overtime rate calculator, a paycheck calculator with overtime, and a team labor-cost projector in one.

It defaults to the 40-hour weekly threshold from the FLSA, but the rules are not the same everywhere. California tracks daily overtime after 8 hours; a union contract might add double time on Sundays. Change the threshold, pick a different multiplier, and the math follows. Set the pay frequency to bi-weekly or monthly and it rolls the numbers up for that period too.

The part that surprises people is the team projection. Five overtime hours from one employee looks harmless until you multiply it by 12 people across 52 weeks. That total is the one most managers have never actually run, and it is usually what changes how they build a schedule.

Who Needs an Overtime Calculator

Overtime costs are easy to underestimate when nobody adds them up. A small operator can run three locations and not notice several thousand dollars a month going to overtime until the accountant flags it at year-end, by which point the money is already spent.

The short version: this is for anyone who pays hourly workers without a payroll system that makes overtime obvious. Shift supervisors at retail stores trying to hold a budget. Warehouse managers riding seasonal spikes. Nursing directors filling empty slots with whoever picks up the phone. If you have ever approved an extra shift without knowing the cost, the calculator is for you.

Overtime Pay Rules: Federal and State

Federally, the rule is one line: any non-exempt employee who works more than 40 hours in a workweek earns time and a half. That is the FLSA, on the books since 1938. The only piece that moves is the salary threshold for who counts as exempt, which the Department of Labor updates every few years.

The state layer is what trips people up. California runs daily overtime, 1.5x after 8 hours in a day and 2x after 12, no matter the weekly total. Colorado starts daily OT after 12 hours, Alaska after 8. Nevada only requires it when you pay below 1.5 times the state minimum wage.

Run crews in more than one state and a single payroll policy will not hold. A shift that is perfectly legal in Texas can create overtime liability in California before lunch.

One more, and it is the costly one: the priciest overtime mistake is not paying overtime, it is tagging someone exempt who is not. A single misclassified employee can open back-pay claims going back two years, three if the violation was willful. If the job is mostly following instructions rather than making independent calls, the person is probably non-exempt.

How to Reduce Overtime Costs

Not all overtime is waste. A Friday rush, a warehouse product launch, a hospital in flu season, those are real spikes that need real hours. The expensive kind is structural: the same people, the same shifts, the same 45-hour weeks, month after month.

Chronic overtime almost never traces back to too much work. It traces back to work that lands unevenly. Three people carry the load while two coast, or the schedule goes out late and the only ones free to cover gaps are already deep into a full week.

A few moves that actually shift the number:

1. Pull 90 days of overtime data and sort by employee. Usually about 20% of the team generates 80% of the overtime hours. That is a distribution problem, not a staffing one.
2. Publish schedules earlier. When people have time to swap shifts, they do. When you post Thursday's schedule on Wednesday night, the only option is overtime.
3. Cross-train aggressively. If only two people can work the espresso bar, and one calls out, the other one's getting overtime. If four people can do it, you have options.
4. Set budget caps per location per week. When a store manager knows they have 320 regular hours to work with, they plan differently than when the limit is vague.

Overtime Rules by State

Most states just follow the federal rule: overtime after 40 hours per week, end of story. But a handful have added daily overtime thresholds, double time requirements, or industry-specific rules that make payroll more complicated.

Here's what you need to know for the states that do things differently:

California - the strictest state. Daily OT kicks in after 8 hours. Work past 12 in a single day, and it's double time. The 7th consecutive day in a workweek also triggers overtime (1.5x for the first 8 hours, 2x after that). Most employers outside California don't realize how different the math is here.

Alaska - daily overtime after 8 hours, same as California but without the double time wrinkle. Weekly threshold is still 40.

Colorado - daily OT after 12 hours (not 8). So a 10-hour shift is fine. A 13-hour shift triggers 1 hour of overtime pay regardless of the weekly total.

Nevada - daily overtime after 8 hours, but only if the employee's regular rate is less than 1.5 times the state minimum wage. Pay above that threshold and the daily rule doesn't apply.

Oregon - manufacturing workers get daily OT after 10 hours. Everyone else follows the standard 40-hour weekly rule.

New York, Texas, Washington - follow federal rules only. No daily overtime, no double time. After 40 weekly hours, it's time and a half.

These rules shift. States update thresholds, add exemptions, and change minimum wage floors regularly. If you're making payroll decisions based on what the law said two years ago, you might already be out of compliance.

Overtime Pay Calculation Examples

Restaurant: Line Cook Working 50 Hours

Hourly rate: $18. Weekly hours: 50. The first 40 hours pay $720 at the regular rate. The remaining 10 hours are time and a half: $18 × 1.5 = $27/hr × 10 = $270 in overtime pay. Total weekly pay: $990. If you have 6 cooks doing similar hours, that's $1,620 per week in overtime - nearly $84,000 a year.

Warehouse: Night Shift with Double Time

A California warehouse worker earns $22/hr. They work a 14-hour shift. The first 8 hours are regular pay ($176). Hours 9-12 are overtime at 1.5x ($132). Hours 13-14 are double time at 2.0x ($88). One shift total: $396. Without understanding the daily overtime rules, the employer might calculate only weekly overtime and underpay - a compliance risk.

Healthcare: Nurse Covering Extra Shifts

An RN earning $35/hr picks up an extra 12-hour shift, bringing their weekly total to 48 hours. Regular pay: 40 × $35 = $1,400. Overtime: 8 × $52.50 = $420. The overtime cost of one nurse covering one extra shift: $420. Multiply by the number of nurses doing the same every week, and the annual overtime budget adds up fast.

Overtime for Different Pay Types

Hourly Employees

The most straightforward overtime pay rate calculation: regular hourly rate × overtime multiplier × overtime hours. This is what our overtime calculator handles directly.

Salaried Non-Exempt Employees

First convert the salary to an hourly rate: annual salary ÷ 52 weeks ÷ 40 hours. Then apply the overtime multiplier to hours beyond 40. Example: $41,600 salary = $20/hr. Ten overtime hours at 1.5x = $300 extra that week.

Tipped Employees

Overtime for tipped workers is calculated on the full minimum wage - not the lower tipped wage. If a server's regular rate (including tips) works out to $14/hr, their overtime rate is $21/hr. Many employers miscalculate this, using the $2.13 tipped minimum wage as the base - that's a violation.

Commission-Based Employees

For employees paid partly or fully by commission, the regular rate is calculated by dividing total earnings (including commissions) by total hours worked. Overtime is then 0.5× that rate for each overtime hour (since the straight-time portion is already included in the commission).

Need to convert shift times between formats? Try our military time conversion tool for quick 12-hour to 24-hour conversions.

Planning overtime budgets across a full year? The work days in a year calculator shows total workdays by country and state, so annual labor cost projections start from an accurate baseline.