Holiday Entitlement Calculator
Started a job mid-year, leaving before it ends, or working irregular hours? Your holiday entitlement is pro-rated. Choose your situation below to see exactly how much paid leave you’re owed.
28 days is the statutory norm for 5-day weeks
Complete months, 1–12
Your pro-rata entitlement
Holiday entitlement
14.0 days
6 of 12 months worked
Full-year equivalent
28.0 days
If you worked the whole year
- Full-year entitlement
- 28.0 days
- Pro-rata fraction
- 6 / 12
- Your entitlement
- 14.0 days
Statutory holiday can’t be rounded down — you’re entitled to at least the figure shown.
Pro-rata for part of a leave year
If you join or leave part-way through your employer’s leave year, you’re entitled to a twelfth of the full-year entitlement for each complete month worked. Six months into a role with 28 days’ annual entitlement means 14 days (28 × 6 ÷ 12).
Statutory holiday can’t be rounded down — if the maths gives 16.8 days, you’re entitled to at least that. Many employers round up to the nearest half day.
The 12.07% method for irregular hours
Workers with no fixed hours — zero-hours contracts, casual and agency work — accrue holiday as 12.07% of hours worked. The figure comes from the 5.6 statutory weeks divided by the 46.4 working weeks that remain (5.6 ÷ 46.4 = 12.07%).
Since April 2024, employers can pay this as “rolled-up holiday pay” — an extra 12.07% on each payslip instead of paid time off — for irregular-hours and part-year workers, provided it’s itemised separately.
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This calculator provides estimates based on published UK rates and the figures you enter. It is for general guidance only and is not financial, tax or legal advice.