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📅 Updated with 2026/27 Agenda for Change rates — effective 1 April 2026.

NHS Guide

How to Calculate Pro Rata Holiday (UK & NHS) — Days and Hours

How to work out pro rata holiday in days or hours, with worked examples for UK statutory leave and NHS Agenda for Change staff.

6 min read
Calculate your exact NHS annual leave entitlement in 30 seconds

Pro rata holiday means your leave is scaled to the hours or days you work. Part-time staff get the same leave as full-time staff, just in proportion. This guide shows the two most common methods: UK statutory leave and NHS Agenda for Change leave.

UK statutory pro rata holiday

Every UK worker is entitled to 5.6 weeks of paid holiday a year, capped at 28 days. To work out your share:

Days you work per week × 5.6 = your holiday in days

  • 5 days a week: 5 × 5.6 = 28 days
  • 4 days a week: 4 × 5.6 = 22.4 days
  • 3 days a week: 3 × 5.6 = 16.8 days
  • 2 days a week: 2 × 5.6 = 11.2 days

These figures can include bank holidays, depending on your contract.

Working it out in hours

If your days vary in length, use hours instead: weekly hours × 5.6 = holiday hours. For example, 24 hours a week × 5.6 = 134.4 hours a year.

NHS pro rata annual leave

NHS staff on Agenda for Change get more than the legal minimum. Full-time staff (37.5 hours) get 27 days, rising to 29 after 5 years and 33 after 10 years, plus 8 bank holidays. For part-time staff:

(Your weekly hours ÷ 37.5) × full-time days × 7.5 = your leave in hours

Example: 22.5 hours a week with under 5 years' service: 22.5 ÷ 37.5 × 27 × 7.5 = 121.5 hours of annual leave, plus 22.5 ÷ 37.5 × 8 × 7.5 = 36 hours of bank holiday allowance.

Starting or leaving part-way through the year

Multiply your yearly entitlement by the months you work, divided by 12. Starting with 6 months of the leave year left gives you half your entitlement.

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