Biweekly pay and overtime — where the hours belong
Why a biweekly period is two workweeks for overtime purposes, and why 45 hours one week plus 35 the next still owes five overtime hours.
Biweekly Pay Calculator
Per-period pay in — annual total, monthly average and periods a year out. A biweekly schedule pays 26 times a year, not 24, and that one number moves every figure below it.
This schedule
Results
Per year
$0.00
—
Monthly average
$0.00
per year ÷ 12
Periods a year
0
—
How the annual figure is worked out
—
Pay per period$0.00
Periods a year0
Per year$0.00
Monthly average$0.00
Weekly equivalent — per year ÷ 52$0.00
Same annual pay, semi-monthly check — per year ÷ 24$0.00
Difference per check — semi-monthly check minus this check$0.00
The last two rows divide the same annual total by 24 and by 52. Neither is a raise or a cut — the year totals match; only the size and count of the checks differ.
26 periods, not 24
A biweekly schedule pays every two weeks. Fifty-two weeks divided by two is 26 paydays. A semi-monthly schedule pays twice a month, and twelve months times two is 24. Both are common, both can carry the same annual salary, and the per-check amount is not the same.
The same $62,400.00 a year, split four ways
Weekly — 52 × $1,200.00 = $62,400.00
Biweekly — 26 × $2,400.00 = $62,400.00
Semi-monthly — 24 × $2,600.00 = $62,400.00
Monthly — 12 × $5,200.00 = $62,400.00
Monthly average = $62,400.00 ÷ 12 = $5,200.00, whichever schedule pays it
| Schedule | Periods a year | Each check | Year total | Gap to semi-monthly |
|---|---|---|---|---|
| Weekly | 52 | $1,200.00 | $62,400.00 | −$1,400.00 |
| Biweekly | 26 | $2,400.00 | $62,400.00 | −$200.00 |
| Semi-monthly | 24 | $2,600.00 | $62,400.00 | — |
| Monthly | 12 | $5,200.00 | $62,400.00 | +$2,600.00 |
The last column is per check, not per year. A biweekly check is $200.00 smaller than a semi-monthly check at this salary, and there are two more of them.
The mistake that costs money is multiplying a biweekly check by 24. At $2,400.00 that gives $57,600.00 instead of $62,400.00 — short by $4,800.00, which is exactly two checks. Any budget, loan application or rent-to-income sum built on the 24 figure is built on a year that does not exist.
Why some calendar years hold 27 biweekly paydays
Twenty-six periods of fourteen days is 364 days. A calendar year is 365 or 366, so the payday drifts one or two days later each year and, eventually, a 27th payday lands inside a calendar year. 365 ÷ 14 = 26.07 and 366 ÷ 14 = 26.14 — the fraction is the drift.
The same arithmetic decides which months hold three checks. A month holds three biweekly paydays when the first one falls early enough for a third to still fit:
| Month length | Three paydays when the first falls on | Two paydays when the first falls on |
|---|---|---|
| 31 days | the 1st, 2nd or 3rd | the 4th to the 17th |
| 30 days | the 1st or 2nd | the 3rd to the 16th |
| 29 days (leap February) | the 1st | the 2nd to the 15th |
| 28 days (February) | never | the 1st to the 14th |
Derived from the 14-day interval: the third payday lands 28 days after the first, the second 14 days after. A month whose first payday falls after the cut-off above holds one check only.
What a 27th check is worth depends on how you are paid. On an hourly rate paid per period, the 27th check is another period of hours — real money for real work. On a salary quoted per year, the annual amount does not change; whether it is spread over 26 paydays or 27 is a payroll practice question, and the tool above assumes 26, so a 27-payday year will show one extra period against its annual figure.
The pay period does not set the overtime threshold
A biweekly period contains two workweeks, and each workweek is tested on its own for hours over 40. Forty-five hours one week and thirty-five the next still owes five overtime hours, even though the period totals a flat eighty. That rule, and the weighted-average rate that follows from it, is worked through on the biweekly pay and overtime page.
What this page does not do
- No tax and no deductions. Every figure here is gross. For federal withholding, Social Security, Medicare and take-home on an overtime week, use the paycheck calculator with overtime.
- No state rules. Pay frequency is regulated differently by state, and some states restrict how far behind the work a payday may fall. This page does not read those rules.
- No 27-payday calendar. The tool multiplies by the period count in the menu (52, 26, 24 or 12). It does not look up your actual payday calendar.
- No hourly-rate conversion. It starts from an amount per period, not from an hourly rate and hours.
Questions people actually ask
Is biweekly 24 or 26 paychecks a year?
26. A biweekly schedule pays every two weeks, and 52 weeks divided by 2 is 26. The 24 figure belongs to semi-monthly pay, which is twice a month. At $2,400.00 a check the difference between the two counts is $4,800.00 a year.
What is the difference between biweekly and semi-monthly?
The interval. Biweekly is a fixed 14 days, so checks land on a weekday that walks through the calendar and you get 26 a year. Semi-monthly is twice a month on set dates — often the 1st and the 15th, or the 15th and the last day — so you get 24. A semi-monthly check is larger because the same annual pay is split 24 ways instead of 26.
How do I get a weekly figure from a biweekly check?
Divide the check by two, because a biweekly period is two weeks. At $2,400.00 per period that is $1,200.00 a week. For a weekly figure that holds across the whole year, divide the annual total by 52 instead — the same $1,200.00 here, but the two methods can differ by a few dollars once a 27-payday year is in play.
Can I use this as a biweekly payroll calculator?
For the gross side, yes: enter what one period pays and read the annual and monthly figures. It does not compute employer payroll taxes, deductions or net pay, so it is not a payroll run — it is the arithmetic a payroll run starts from.
Is it “biweekly” or “bi weekly”?
Both spellings appear on pay stubs and in job adverts and they mean the same schedule: every two weeks, 26 periods a year. The word is genuinely ambiguous in general English — it can also mean twice a week — which is why payroll writing tends to spell out “every other week” instead of relying on the prefix.
How do I turn a biweekly salary into an annual salary?
Multiply the per-period amount by 26. A $2,400.00 biweekly salary is $62,400.00 a year. If the offer is quoted the other way round, divide the annual figure by 26 to get the check — $62,400.00 ÷ 26 = $2,400.00.
Can I use a time card calculator for a two-week period?
Yes, but keep the weeks apart. Add each week’s hours from its own set of clock-in and clock-out times, then test each week against 40 before adding the two together — a combined total hides the overtime in the heavier week. The time card calculator on the homepage works week by week, and the guide to how it works shows the clock times behind the hours.
Why does my monthly budget never match my checks?
Because a 14-day cycle does not line up with calendar months. Most months hold two checks, some hold three, and February can hold one. Budgeting on the monthly average — the annual total divided by 12 — is the figure that stays stable; budgeting on two checks a month understates the year by two checks.
Related pages
Paycheck calculator with overtime — gross to take-home
The tax side this page leaves out: federal withholding, Social Security, Medicare and the net figure, on a week with overtime hours.
From a time card to gross pay
The chain before any of this: clock-in and clock-out times to hours, hours to gross, and then a period amount to an annual figure.
General information only — not tax, legal or payroll advice. Every figure on this page is gross pay. Your payslip, your employer’s payroll calendar and your tax return remain the authority.