How to Calculate Time and a Half: Overtime Rate and Hours Examples

Quick Answer

Time and a half means 1.5 times your normal hourly rate. If your base rate is $20 per hour, your overtime rate is $30 per hour. For 5 overtime hours, total overtime compensation is $150, of which $50 is the extra premium and $100 represents the base-rate value of those hours. A week with 40 regular hours at $20 plus 5 overtime hours at $30 is $800 + $150 = $950 in gross pay before deductions.

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That is the short answer. The rest of this article shows the formulas, worked examples, and common variations so you can calculate correctly and keep clear records.

Under U.S. federal rules, covered nonexempt employees generally must receive at least 1.5 times the regular rate for hours over 40 in a workweek. This is not universal across all countries, all workers, or all employment arrangements. State laws, contracts, and employer policies can differ. The examples below use a simple hourly rate and assume no bonuses, shift differentials, or other extra compensation. They do not calculate taxes and do not determine legal eligibility.

The Basic Formulas

Time-and-a-half means overtime hours are paid at a higher hourly rate, not as a separate bonus. The calculations below assume one hourly rate and no compensation that changes legal regular rate. They do not determine who is eligible for overtime.

overtime rate = simple base hourly rate × 1.5
extra premium per overtime hour = base rate × 0.5
total overtime compensation = overtime rate × overtime hours
gross weekly compensation = regular hours × base rate + overtime compensation

The important distinction is between total overtime compensation and premium. The premium is only the extra half, not the whole overtime payment. Each overtime hour already contains one full base-rate hour plus an additional half-rate premium for working beyond regular hours.

For example, with base rate 20 and overtime hours 5: overtime rate 30, premium per hour 10, overtime compensation 150 and total premium 50. The 150 is what appears as overtime pay, while 50 is the extra amount above straight-time value.

To apply this, first multiply the base rate by 1.5, then multiply that result by overtime hours. Add the outcome to regular pay to obtain gross weekly compensation.

Overtime Rate vs. Overtime Premium vs. Total Overtime Compensation

These three terms are often confused.

Overtime rate is the hourly price for an overtime hour. At a $20 base rate, the overtime rate is $30 per hour.

Overtime premium is only the extra half. At a $20 base rate, the premium is $10 per overtime hour. Employers, payroll reports, and budgets sometimes separate this amount to show the added cost of overtime above straight-time pay.

Total overtime compensation is the full payment for the overtime hours. At $20 base pay for 5 hours, it is $150. That $150 consists of $100 at the base-rate value plus $50 in premium.

Why the distinction matters: if someone asks, How much extra did overtime cost, the answer is the premium. If someone asks, How much was paid for the overtime hours, the answer is the total overtime compensation. For 5 hours at a $20 base:

Base-rate value: $20 x 5 = $100
Premium: $20 x 0.5 x 5 = $50
Total overtime compensation: $100 + $50 = $150

For weekly gross pay, add regular pay and total overtime compensation, not regular pay plus only the premium.

Time-and-a-Half Rate Table

This table shows common base rates, the resulting overtime rate, the premium per hour, and the total for 5 overtime hours.

Base rate	Overtime rate: base x 1.5	Premium per hour: base x 0.5	Total for 1 overtime hour	Total for 5 overtime hours
$15.00	$22.50	$7.50	$22.50	$112.50
$18.00	$27.00	$9.00	$27.00	$135.00
$20.00	$30.00	$10.00	$30.00	$150.00
$25.00	$37.50	$12.50	$37.50	$187.50
$30.00	$45.00	$15.00	$45.00	$225.00

To use the table for another number of hours, multiply the overtime rate by the overtime hours. For example, 3 overtime hours at a $25 base rate: $37.50 x 3 = $112.50. The premium portion would be $12.50 x 3 = $37.50.

Weekly Calculation: Step-by-Step Example

Suppose the base rate is $20 per hour, with 40 regular hours and 5 overtime hours in one workweek.

Step 1: Calculate regular pay.

$20 x 40 = $800

Step 2: Calculate the overtime rate.

$20 x 1.5 = $30

Step 3: Calculate total overtime compensation.

$30 x 5 = $150

Step 4: Add regular pay and overtime pay for gross weekly pay.

$800 + $150 = $950 before deductions

Check with the premium method:

Base-rate value of 5 overtime hours: $20 x 5 = $100
Premium: $20 x 0.5 x 5 = $50
Total overtime compensation: $100 + $50 = $150
Weekly gross: $800 + $150 = $950

If hours are fractional, use decimals. For example, 4.5 overtime hours at $20: $30 x 4.5 = $135. Keep minutes accurate. Fifteen minutes is 0.25 hour, 30 minutes is 0.5 hour, and 45 minutes is 0.75 hour.

Gross Pay vs. Take-Home Pay

The $950 result above is gross pay. Gross pay is pay before deductions.

Take-home pay, often called net pay, is what remains after deductions. Deductions may include income-tax withholding, Social Security and Medicare, state or local taxes where applicable, retirement contributions, health-plan premiums, and other authorized deductions. The exact deductions depend on tax status, location, benefits choices, and payroll settings.

An overtime calculation therefore answers the gross-pay question, not the take-home question. Do not multiply overtime hours by an after-tax hourly figure unless you have separately calculated net treatment, which payroll systems normally handle. For planning, it is more accurate to say: 5 overtime hours increase gross pay by $150, then deductions apply to total gross pay.

What If You Have Multiple Rates, Bonuses, or Other Pay?

The simple base-rate x 1.5 method works only when there is one hourly rate and no other compensation that affects the legal regular rate.

In practice, complications include:

Two different hourly rates in the same week, such as daytime and evening work
Nondiscretionary bonuses, production bonuses, or attendance bonuses
Shift differentials
Piece-rate, day-rate, or salary converted to an hourly equivalent
Retroactive pay adjustments

The legal regular rate may include some of these payments, divided over the relevant hours, before applying the 1.5 multiplier. That can produce a different overtime rate than simply taking one nominal hourly rate x 1.5. Payroll rules also distinguish discretionary bonuses from nondiscretionary bonuses.

If any of these apply, do not rely only on the simple example. Keep all pay rates and bonus documents, record hours by rate or job, and use the payroll method required for your situation. A payroll administrator or qualified employment-law resource in your jurisdiction can explain which payments must be included.

Holidays, Weekends, and Evening Work

Weekend, holiday, night, or evening work does not automatically create federal overtime by itself. Under the federal weekly standard described above, the key question is generally whether total hours exceed 40 in the workweek, not which day the work occurred.

Separate rules may still provide extra pay. An employer policy, union agreement, or state law may require holiday premium pay, weekend differentials, daily overtime, or double time. Some employers pay extra for holidays as a benefit even when weekly hours are below 40. Those are contractual or jurisdiction-specific rules, not the same as federal weekly overtime.

To avoid errors, track two facts separately: total hours in the workweek and any holiday, weekend, or shift premium promised by policy or agreement. Then apply each rule to the correct hours.

Records to Keep

Good records prevent underpayment and disputes. Keep:

Start and end times each day, including meal periods if unpaid
Total hours per workweek, not only per pay period
Regular hours and overtime hours separately
Base rate or rates in effect
Overtime rate used
Bonuses, differentials, and other payments received that week
Pay stubs showing gross pay and deductions
Employer overtime policy or agreement terms

If hours vary, save timecards or time-system exports. If pay is corrected later, keep both the original and corrected stubs. For manual checks, write the formula used beside the total, for example: $20 x 1.5 x 5 = $150.

Sources and rule references

Is Overtime Calculated Weekly or Biweekly? Why Each Workweek Matters

Frequently Asked Questions

5 questions answered

How do I calculate time and a half from an hourly rate?

Multiply the base hourly rate by 1.5 to get the overtime rate, then multiply that rate by the number of overtime hours. With a $20 rate and 5 overtime hours, the calculation is $20 x 1.5 = $30, then $30 x 5 = $150 in total overtime compensation. This simple method assumes one hourly rate with no bonuses or other payments that would change the legal regular rate.

What is the difference between the overtime premium and total overtime pay?

Total overtime pay is the full payment for overtime hours. The overtime premium is only the extra half above the base-rate value. For 5 hours at a $20 base rate, total overtime pay is $150 and the premium portion is $50. The remaining $100 is the base-rate value of those hours. Use the premium when measuring the added cost of overtime and use the total when calculating gross pay.

How do I calculate a full week with overtime?

Calculate regular pay first, then overtime pay, then add them. For 40 regular hours at $20 plus 5 overtime hours at $30, regular pay is $800, overtime pay is $150, and gross weekly pay is $950 before deductions. For partial hours, convert minutes to decimals before multiplying, such as 4.25 or 4.5 hours.

Does holiday or weekend work always count as time and a half?

Not automatically under the federal weekly rule discussed here. Federal overtime generally depends on whether covered hours exceed 40 in the workweek. Holiday or weekend premiums may still apply under a state law, employer policy, or labor agreement, so check those terms separately. Record weekly total hours and holiday or weekend hours independently.

Why is my overtime paycheck less than rate times hours?

The rate-times-hours calculation gives gross pay before deductions. Taxes, Social Security, Medicare, benefits premiums, retirement contributions, and other deductions reduce gross pay to take-home pay. Also check whether the legal regular rate included bonuses or differentials, whether hours were credited to a different workweek, and whether a separate holiday or shift rule applied.

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