How to Calculate Overtime Pay: Step-by-Step Guide
To calculate overtime pay, multiply your overtime hours by your hourly rate times the overtime multiplier (1.5 for time and a half), then add your regular pay — regular hours times your base rate — to get total gross earnings. The ByteTools Overtime Pay Calculator does this instantly: you enter four numbers and it shows regular pay, overtime pay and the combined total. This guide walks through each step and the math behind it.
The overtime formula in plain terms
There are two parts to gross pay when some hours are paid at a premium:
- Regular pay = regular hours × hourly rate
- Overtime pay = overtime hours × hourly rate × multiplier
- Total gross = regular pay + overtime pay
The multiplier is what makes overtime worth more. "Time and a half" is a multiplier of 1.5; "double time" is 2. Your effective overtime hourly rate is simply your base rate times that factor.
Step-by-step with the calculator
- Choose your currency and enter your hourly rate. Use your normal base rate, before any premium.
- Enter your regular hours. These are the hours paid at the standard rate.
- Enter your overtime hours. These are the hours paid at the premium — you decide which hours count, so it fits any employer's rules.
- Set the overtime multiplier. Leave it at 1.5 for time and a half, set 2 for double time, or type any custom factor your contract uses.
- Read the results. The tool displays regular pay, overtime pay, your effective overtime hourly rate and total gross earnings.
A worked example
Say your base rate is $20, you worked 40 regular hours and 6 overtime hours at time and a half:
| Item | Calculation | Result |
|---|---|---|
| Regular pay | 40 × $20 | $800 |
| Overtime rate | $20 × 1.5 | $30/hour |
| Overtime pay | 6 × $30 | $180 |
| Total gross | $800 + $180 | $980 |
The calculator does this arithmetic for you and updates as you change any figure, so you can test different amounts of overtime in seconds.
Why it runs in your browser
Your pay is sensitive information. This tool performs every calculation locally in your browser — nothing is uploaded, stored or sent to a server — so your rate and hours stay entirely private. It also means the calculator keeps working offline and returns results instantly. Bear in mind the figures are gross estimates based on what you enter; they are not payroll or tax advice, so apply your own tax rate to work out take-home pay.
Try the calculator
Try the Overtime Pay Calculator — free and 100% in your browser.
FAQ
What number do I put in for the hourly rate?
Enter your standard base rate before any premium. The calculator applies the multiplier to that base rate for the overtime portion, so you should not pre-multiply it yourself.
How do I calculate double time?
Set the multiplier to 2. Each overtime hour is then paid at twice your base rate, which the tool shows as the effective overtime hourly rate.
Do I need to know my overtime threshold to use the tool?
No. The calculator does not assume a weekly threshold like 40 hours. You decide how many hours count as overtime based on your own rules and enter that number directly.
Does the result include tax?
No. It shows gross pay. Overtime is generally taxed like regular income, so apply your own tax rate to the total to estimate what lands in your account.
Related free tools
- Paycheck Calculator — estimate take-home from gross.
- Salary to Hourly Calculator — find your base hourly rate.
- Commission Calculator — add commission to earnings.
- Percentage Calculator — quick percentage math.
Built by ByteVancer
ByteTools is a free product of ByteVancer, a software and web development studio building web apps, SaaS and custom software. If you need private, browser-based calculators or a tailored business tool, explore what ByteVancer can build.
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