Tools · UK statutory

UK holiday entitlement calculator

Calculate statutory paid leave under the Working Time Regulations 1998 — for regular-hours, irregular-hours and part-year workers, including the 12.07% accrual method introduced by the 2024 reforms. Free. No login. The maths is shown next to the answer.

Worker type Regular hours (fixed days/week) Irregular hours (varies week to week) Part-year (some full weeks not worked)

Days worked per week 5.6 weeks × days/week = annual statutory minimum (capped at 28 days).

Hours worked so far this leave year 12.07% of hours worked = statutory accrued holiday hours.

Leave year start date If your contract is silent, the worker's start date is the leave-year anchor (gov.uk).

Employment start date

Contractual allowance, in days (optional override) Some employers give more than statutory. If yours does, enter the contractual number.

Days already taken

The rules this calculator follows

5.6 weeks statutory minimum — Working Time Regulations 1998, Reg 13 (4 weeks EU origin) + Reg 13A (1.6 weeks UK addition). Capped at 28 days for a 5-day worker.
Pro-rata for part-time — 5.6 × days worked per week. So 3 days/week = 16.8 days.
12.07% accrual for irregular hours and part-year workers — applies to leave years starting on or after 1 April 2024 under the 2024 reforms. 12.07% derives from 5.6 weeks ÷ (52 − 5.6) = 5.6 ÷ 46.4.
Bank holidays are NOT separately statutory — they may or may not be inside the 5.6 weeks, depending on contract.
Sources verified 2026-06-10 against gov.uk, legislation.gov.uk and Acas. We re-verify quarterly.

UK holiday entitlement calculator

Result

The rules this calculator follows

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