Annual leave calculator 38 hour week australia

38 hours is the most common full-time week in Australia, and it produces one specific number that's worth just memorising: 152 hours of annual leave per year. Not 4 weeks as an abstract concept — 152 actual hours, sitting in your leave bank, accruing from your very first week on the job.

Where 152 Hours Actually Comes From

A 38-hour week across 52 weeks of the year gives 1,976 total ordinary hours worked annually. The standard 4-week annual leave entitlement is 4 out of those 52 weeks, so: (4 ÷ 52) × 1,976 = 152 hours, almost exactly. That's the entire calculation — no hidden multipliers, no rounding tricks, just the proportion of the year that 4 weeks represents, applied to actual hours worked.

Spread evenly, 152 hours over 52 weeks gives a weekly accrual rate of 2.923 hours. That number shows up constantly in Australian payroll systems for exactly this reason — it's the default rate baked into most awards built around a standard 38-hour week.

Why 152 Hours Doesn't Equal "4 Weeks Off" in Every Sense

152 hours divided by a standard 7.6-hour working day gives exactly 20 working days. Four weeks at 5 working days each is also 20 days — so the hours and the "weeks off" framing line up neatly for a standard 38-hour, 7.6-hour-day arrangement. Change the daily spread (say, four 9.5-hour days instead of five 7.6-hour days) and the hours stay at 152, but the number of days off shifts, since 152 ÷ 9.5 = 16 days instead of 20.

Accrual Across a Partial Year

Most people aren't asking about a full year, they're asking "how much have I built up so far." Multiply the weekly rate by however many weeks you've actually worked. 15 weeks in: 15 × 2.923 = 43.85 hours, or roughly 5.77 working days at 7.6 hours each.

Started partway through the year on a 38-hour contract? The same rate applies from day one — there's no waiting period before annual leave starts accruing under the National Employment Standards, though some awards do set a minimum period before leave can actually be taken or paid out.

The One Adjustment People Often Miss

If you've taken unpaid leave at any point — unpaid parental leave being the most common example — annual leave generally doesn't accrue during that unpaid period. Someone who's taken 6 weeks of unpaid leave during an otherwise full year should calculate their accrued weeks as 52 minus 6, not 52, before applying the 2.923 hourly rate.

A Full-Year Worked Example

A 38-hour employee has worked the entire year with no unpaid leave breaks: 52 weeks × 2.923 hours/week = 151.996 hours, which rounds to the expected 152 hours for the full year. Take 4 weeks of that leave (152 hours) during the year and the balance returns to zero, exactly matching the 4-week entitlement they started with.

Now compare a colleague on the same 38-hour week who took 4 weeks of unpaid leave partway through (perhaps an unpaid leave of absence): 48 accruing weeks × 2.923 = 140.3 hours for the year — 11.7 hours short of the full 152, purely because of the unpaid gap. That's the kind of detail a flat "4 weeks a year" assumption misses entirely, and it's exactly why basing leave estimates on hours actually worked matters. The Fair Work Ombudsman's leave guidance covers the unpaid leave accrual rules in more detail for specific circumstances.

FAQs

How many hours of annual leave do you get per year on a 38-hour week?

A standard 38-hour week produces 152 hours of annual leave per year under the 4-week National Employment Standards entitlement, working out to roughly 2.923 hours accrued per week worked.

Is annual leave calculated in weeks or hours for a 38-hour employee?

Legally it's expressed as 4 weeks, but in practice payroll systems track and accrue it in hours, since that's the only way to handle partial years, varying rosters, and accurate payouts.

Does 152 hours always equal 20 working days?

Only if the working week is structured as five 7.6-hour days. If hours are spread differently, such as four longer days, the same 152 hours produces a different number of actual days off.

Do I accrue annual leave from my first day of a new 38-hour job?

Yes, annual leave accrual begins from the start of employment under the National Employment Standards, though some awards may set conditions around when leave can actually be taken or paid out.

Does unpaid leave affect annual leave accrual on a 38-hour week?

Yes, annual leave generally does not accrue during unpaid leave periods, so time spent on unpaid leave reduces the total hours accrued for that year compared to a full 52 weeks of accruing service.

How do I calculate annual leave for less than a full year on a 38-hour week?

Multiply the weekly accrual rate of roughly 2.923 hours by the number of weeks actually worked (excluding unpaid leave periods) to get the accrued hours for that partial year.

152 hours and 2.923 hours per week are the two numbers worth holding onto from all of this — everything else, whether it's a partial year, an unpaid leave gap, or converting to working days, is just applying those two figures to your specific situation.