About Overtime Hours Calculator
This site is a set of calculators for the arithmetic behind a timesheet: converting hours and minutes, adding them up, splitting a week into regular and overtime hours, and turning those hours and a pay rate into pay.
Every calculator runs in your browser. Nothing you type is uploaded, stored on a server or attached to an account, because there is no account and no server-side calculation to send it to. This site does not deliberately store what you type either; your browser may still restore form values on a reload, a back-navigation or a session restore, depending on its own settings.
The tools on this site
Each page does one job and states its formula on the page, so you can check the result by hand instead of trusting a box that only shows an answer.
- Time and a Half CalculatorA rate and overtime hours into overtime pay at 1.5× or a multiplier you set.
- Overtime Pay CalculatorRegular and overtime hours priced separately, with the full formula worked through.
- No Tax on Overtime CalculatorAn estimate of the federal deduction for qualified overtime compensation, with its caps and limits.
- Time Card CalculatorTwo weeks of clock-in and clock-out times, unpaid breaks, and weekly overtime.
- Time to Decimal CalculatorHours and minutes into decimal hours for a field or report that asks for them.
- Add Time CalculatorSeveral hour-and-minute entries added into one total.
- Decimal to Time CalculatorDecimal hours back into hours and minutes, with rounding options.
- Minutes to Decimal ChartAll 61 minute values printed as decimal hours, plus a single-value converter.
How the calculators are built
The same handful of rules applies to every page on this site.
- The formula is visible. Each result comes with the steps that produced it, using the numbers you entered rather than a generic example. If the page shows a worked example or a FAQ answer, it uses the same calculation the tool does.
- Bad input is an error, not a zero. A negative rate, a letter in a number field or an impossible pair of clock times produces a visible message next to the field. A calculator that quietly treats a mistake as 0 gives you a wrong total that looks fine.
- Rounding is stated. Where a value has to be rounded — 20 minutes is 0.3333 hours and never lands cleanly — the page says at what precision and why the figure your employer records may still differ.
- The page works without JavaScript. The explanation, the formula and any reference table are in the HTML itself. Only the interactive result needs scripting.
- Your inputs stay in your browser. There is no sign-in, no saved timesheet and no upload step. See the privacy policy for what the site's analytics do and do not collect.
Where this site stops
A calculator can do arithmetic reliably. It cannot tell you which rules apply to your job, and this one does not pretend otherwise.
Overtime rules vary. Federal law sets a baseline — broadly, covered non-exempt employees earn at least one and a half times their regular rate for hours over 40 in a workweek — but states add their own rules, including daily overtime thresholds in some places. Your classification, your union or employment contract, how your employer defines the workweek, and which pay counts toward the regular rate all change the answer. The tools here use the threshold and multiplier you give them; deciding which ones are correct for you is not something this site can do.
Official sources control
Where a result depends on a legal or tax rule, the relevant page links the government source it was built from. If this site and an official source disagree, the official source is right and the page is wrong — please tell us so it can be fixed. Nothing here is legal, tax or payroll advice.
- U.S. Department of Labor — Overtime Pay: the federal FLSA baseline, exemptions and the regular rate.
- State Labor Offices: the agency in your state, for rules the federal baseline does not cover.
- Internal Revenue Service: the authority on anything tax-related, including the deduction estimated on the no-tax-on-overtime page.
Accuracy and corrections
Arithmetic can be verified, and the worked steps on each page are there so you can verify it. Rules are different: they change, and a page written against an old rule keeps looking confident while being out of date.
So where a page depends on a rule with a date attached, it says so. The no tax on overtime calculator names the tax years it covers, the date its figures were last checked against the official sources, and the caps and income limits it applies — and it is clear that it estimates a deduction rather than your withholding or your refund.
There is no promised review schedule here, and claiming one would be worth less than the dated sources on the pages themselves. Corrections are made when a problem is found or reported. If you spot a wrong number, a formula that does not match its result, or a rule that has moved on, send it to us at [email protected]. A specific example — the page, the numbers you entered and the result you expected — is the fastest thing to act on.