Free UK annual leave calculator for full-time, part-time, zero-hours contracts & mid-year starters. Updated for 2026 with all bank holidays.
UK statutory minimum is 28 days for full-time workers
Annual Entitlement
25.0
days5 days/week · 37.5 hrs/week
How it's calculated
25 days base = 25.0 days
Based on UK Working Time Regulations 1998. Rounded to nearest half-day.
| Days/Week | Worker Type | Holiday (Days) | Holiday (Hours) |
|---|---|---|---|
| 1 | Part-time | 5.6 | 44.8 |
| 2 | Part-time | 11.2 | 89.6 |
| 3 | Part-time | 16.8 | 134.4 |
| 4 | Part-time | 22.4 | 179.2 |
| 5 | Full-time | 28 | 224 |
| 6+ | Extended | 28 (capped) | 224 |
Based on 8-hour working day. Formula: days per week × 5.6 = annual leave days.
Under the Working Time Regulations 1998, all workers in the UK are entitled to a minimum of 5.6 weeks of paid holiday per year. For someone working a standard five-day week, this equals 28 days (5 × 5.6 = 28).
The UK Annual Leave Formula
Days worked per week × 5.6 = Annual leave entitlement
Part-time workers have exactly the same right to 5.6 weeks paid leave as full-time workers. The entitlement is simply calculated on a pro-rata basis using the same formula.
Sarah works Monday, Wednesday, and Friday.
Rounded to nearest half-day as per UK practice.
John works Monday to Thursday.
Or calculate in hours for more precision.
Part-Time Workers Regulation 2000
Under the Part-Time Workers Regulations, employers must not treat part-time workers less favourably. If full-time staff get bank holidays on top of 28 days, part-timers must receive a proportional equivalent.
For workers with irregular hours (zero-hours contracts, casual staff, bank workers), calculating leave in days is impractical. Instead, use the 12.07% accrual method.
The 12.07% Rule
For every hour worked, the employee accrues 12.07% of that hour as paid leave.
This percentage comes from: 5.6 weeks ÷ 46.4 working weeks (52 - 5.6) = 12.07%
Maria works varying shifts and has worked 200 hours this quarter.
Maria has earned approximately 24 hours of paid leave to take.
This method ensures zero-hours workers receive their full statutory entitlement regardless of how irregular their schedule. Use the calculator above in "Zero-Hours" mode to calculate your accrued leave instantly.
When an employee starts partway through the leave year, their entitlement is calculated on a pro-rata basis for the remainder of that year.
Pro-Rata Formula
(Remaining days ÷ 365) × Full entitlement = Pro-rata entitlement
James is full-time (25 days entitlement). His company's leave year runs Jan-Dec. Starting 1 July means 184 days remaining.
Use the calculator above with your start date to get an instant pro-rata calculation. The same formula applies when employees leave mid-year - they're entitled to payment for any accrued but untaken leave.
