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4.5-Days-a-Week Holiday Entitlement Calculator

Based on the default pattern below, a typical entitlement is 25.2 days. Adjust the inputs for your exact figure.

4.5 days

Your entitlement

25.2 days

How it's worked out

(4.5 days ÷ 5 full-time days) × 28 days = 25.2 days

Audit note

UK rounding rule: employers may round holiday up to the nearest half or full day, never down. Statutory leave is capped at 28 days for anyone working five or more days a week.

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How this calculation works

Work a set number of days each week? Your paid holiday is pro-rated from the 5.6 weeks (28 days) a full-time employee gets. Pick your working pattern to see the exact statutory entitlement.

Worked example

(4.5 days ÷ 5 full-time days) × 28 days = 25.2 days

Frequently asked questions

What holiday do I get for 4.5 days a week?
4.5 days a week earns 25.2 days of paid holiday a year on the statutory minimum (4.5 × 5.6). If your employer's full-time allowance is above 28 days, adjust it in the calculator.
I'm nearly full-time — is it worth pro-rating?
Yes. Even a half-day difference from full-time changes your entitlement, and getting it right protects both you and your employer if the balance is ever queried.
Does a 9-day fortnight give the same result?
A 9-day fortnight also averages 4.5 days a week, so the annual entitlement is the same 25.2 days. The difference is only in how the pattern is scheduled.