Calculate UK Holiday Entitlement Online Free
🚀 Calculate the Entitlement
Pick the working pattern below — the entitlement and balance update live. Nothing leaves your device.
🗓️ Working Pattern
👤 Employer & Employee
📅 Leave Year & Employment Dates
⏰ Days Worked
🧮 Result
📝 Statement Options
Quick answer: UK workers get a statutory minimum of 5.6 weeks' paid holiday, capped at 28 days. For a regular pattern, multiply 5.6 × days worked per week (3 days a week = 16.8 days). Starters and leavers are pro-rated by calendar days in the leave year. For irregular-hours and part-year workers, switch to accrual: holiday builds at 12.07% of hours worked. Enter holiday already taken to see the remaining balance, then click Download PDF for an entitlement statement. Everything runs locally in your browser with jsPDF. This is a calculation aid, not legal advice — your contract may give more than the statutory minimum.
- Cost: Free, unlimited calculations and statements, no signup.
- Where it runs: 100% in your browser — no upload, no server storage.
- Statutory rules built in: 5.6 weeks, 28-day cap, part-time pro-rata.
- Starter/leaver pro-rata: By calendar days within the leave year.
- 12.07% accrual mode: For irregular-hours and part-year workers (Great Britain).
- Statutory minimum only: Contracts can give more, and bank holidays may or may not be included.
⚖️ Calculation Aid, Not Legal Advice: This applies the standard statutory method. Your contract, policy, or a collective agreement may give more holiday or use a different pro-rata method.
🏦 Bank Holidays: An employer can include bank holidays within the 5.6 weeks or give them on top — the contract decides which.
🌍 Great Britain Rules: The 12.07% accrual method here is for Great Britain. Northern Ireland has its own rules.
✅ Privacy: Employee details are processed locally — never uploaded, transmitted, or stored anywhere.
✅ 100% Private: Your calculation and statement are generated locally in your browser using JavaScript. No data is ever uploaded to a server or stored anywhere.
Note: Your data will be cleared once you close or refresh the page, so download your PDF before leaving.
How to Calculate UK Holiday Entitlement
Choose the Pattern
Regular days per week, or irregular hours.
Enter the Leave Year
Start and end dates, plus any mid-year start or leaving date.
Enter Days or Hours
Days per week, or hours worked so far, and holiday taken.
Download the Statement
Review the balance, then save your PDF.
🔒 Employee Details Never Leave Your Device
This tool calculates entitlement and builds the statement using jsPDF running inside your browser tab. There is no upload step, no server-side processing, and no network request containing employee details.
Who Uses This Holiday Entitlement Calculator?
HR Managers
Produce a clear entitlement statement for starters, leavers, and part-time staff.
Small Business Owners
Check the statutory minimum without specialist HR software.
Payroll Teams
Cross-check holiday balances before processing a leaver's final pay.
Employees
Check that the holiday you've been given matches the statutory minimum.
Zero-Hours & Casual Workers
See how much holiday has accrued from the hours actually worked.
Part-Time & Term-Time Staff
Pro-rata entitlement worked out correctly from days per week.
Why Use This Holiday Entitlement Calculator?
- Fully Client-Side: jsPDF builds the whole statement in your browser — no upload.
- Real Vector Text: Sharp, small-file-size PDF output — not a flattened screenshot.
- Side-by-Side Preview: Check your calculation and statement as you build it.
- Two Working Patterns: Regular days per week, and irregular hours with 12.07% accrual.
- Correct 28-Day Cap: A six-day week is not credited above the statutory cap.
- Exact and Rounded Figures: See the precise number and an optional half-day round-up.
- Balance Included: Holiday taken is subtracted to show what's left.
- 100% Free & Private: No account, no watermark, no server storing your data.
UK Holiday Entitlement Calculator – Complete Guide
Statutory holiday looks simple - 28 days - but only for someone working exactly five days a week for a full leave year. The moment someone works part-time, starts in July, or has hours that change week to week, the number changes, and it's easy to get wrong in either direction.
Statutory Entitlement by Days Worked Per Week
| Days Worked Per Week | Statutory Entitlement (Full Year) |
|---|---|
| 1 | 5.6 days |
| 2 | 11.2 days |
| 3 | 16.8 days |
| 4 | 22.4 days |
| 5 | 28 days |
| 6 or more | 28 days (capped) |
Based on 5.6 weeks under the Working Time Regulations 1998, capped at 28 days. A contract may give more than the statutory minimum.
The 12.07% Accrual Method
For irregular-hours and part-year workers, holiday builds at 12.07% of hours worked. The percentage isn't arbitrary: 5.6 weeks of holiday divided by the 46.4 weeks a person actually works in a year (52 minus 5.6) is 12.07%. So for every 100 hours worked, 12.07 hours of holiday accrue. In Great Britain this applies to leave years beginning on or after 1 April 2024, and rolled-up holiday pay (paying the 12.07% with each payslip) is also permitted for these workers.
How This Calculator Actually Works
In regular mode, the full-year figure is 5.6 multiplied by days worked per week, capped at 28. If the person started or left part-way through the leave year, that figure is multiplied by the number of calendar days they were employed in the leave year divided by the total calendar days in the leave year, so leap years are handled automatically. An optional toggle rounds the result up to the nearest half day, and the exact figure is always shown too. In irregular mode, hours worked are multiplied by 12.07%, and if you supply typical hours per working day, the result is capped at 28 days' worth of hours. Holiday taken is then subtracted for a remaining balance. On download, jsPDF draws the statement as genuine vector text. Nothing ever touches a server.
Security and Privacy Considerations
- No Data Upload: Every field you fill in stays on your device.
- No Server Processing: Calculation and PDF generation run entirely as client-side JavaScript.
- No Storage: Nothing is saved once you close or refresh the tab.
- No Account Needed: There is no login, tracking, or usage cap.
Browser Compatibility and Technical Requirements
This UK Holiday Entitlement Calculator works in modern browsers that support JavaScript PDF generation (jsPDF) and Blob downloads.
- ✅ Chrome/Edge 76+
- ✅ Firefox 55+
- ✅ Safari 13.1+
- ✅ Mobile Chrome (Android), Mobile Safari (iOS) — download supported
Troubleshooting Common Issues
Explanation: Starters are pro-rated by the share of the leave year they're employed. Solution: Check the employment start date falls inside the leave year, and remember this tool uses calendar days — some employers use months, which gives a slightly different figure.
Explanation: Statutory holiday is capped at 28 days. Solution: This is expected — the cap applies however many days are worked, though a contract can give more.
Explanation: The employment dates fall outside the leave year, or the end date is before the start date. Solution: Check the leave year dates and any start or leaving date.
Explanation: The PDF needs both parties identified. Solution: Fill in both names, then download again.
Frequently Asked Technical Questions
Question 1: What actually builds the PDF - is it a known library?
Answer: This tool uses jsPDF, a widely used open-source JavaScript library for generating PDF documents in the browser, loaded directly in your browser tab.
Question 2: How is the starter/leaver proportion calculated?
Answer: The tool counts the calendar days (inclusive) between the later of the leave year start and the employment start, and the earlier of the leave year end and the leaving date, then divides by the total calendar days in the leave year.
Question 3: Where does 12.07% come from?
Answer: It's 5.6 divided by 46.4, where 46.4 is 52 weeks minus the 5.6 weeks of holiday, which comes to roughly 0.1207.
Question 4: How is the 28-day cap applied in irregular mode?
Answer: If you enter typical hours per working day, the tool multiplies that by 28 to get a maximum number of hours and limits the accrued figure to it; without that input, no cap can be expressed in hours, so none is applied.
Question 5: Does this tool need an account, server, or API key?
Answer: No. jsPDF and the live preview both run as ordinary JavaScript already loaded by this page — you never need an account or any API key to use it.
Glossary of Terms
- Statutory Holiday Entitlement
- The legal minimum paid annual leave for UK workers: 5.6 weeks per leave year, capped at 28 days.
- Leave Year
- The 12-month period over which holiday entitlement is calculated, set by the contract or defaulting to the start of employment.
- Pro-Rata
- A proportionate share of the full entitlement, used for part-time workers and for people who start or leave part-way through a leave year.
- 12.07% Accrual
- A method for irregular-hours and part-year workers under which holiday accrues at 12.07% of hours worked, derived from 5.6 weeks divided by 46.4 weeks.
- Rolled-Up Holiday Pay
- Paying an amount for holiday (such as 12.07%) with each payslip instead of when leave is taken, permitted for certain irregular-hours and part-year workers.
Frequently Asked Questions
Yes, completely free with no watermark, no signup, and no limit on calculations or statements.
No. Everything is calculated and turned into a PDF inside your browser using JavaScript. Nothing is transmitted over the network.
5.6 weeks of paid holiday per leave year, which is 28 days for someone working five days a week, under the Working Time Regulations 1998.
Yes. Statutory entitlement is capped at 28 days, so someone working six or seven days a week still has a statutory minimum of 28 days, though a contract can give more.
Multiply 5.6 by the number of days worked per week. For example, 3 days a week gives 16.8 days.
This tool pro-rates the full-year entitlement by the proportion of calendar days employed within the leave year. Some employers instead use months, so check your contract or policy.
For irregular-hours and part-year workers, holiday accrues at 12.07% of hours worked. The figure comes from 5.6 weeks divided by 46.4 weeks (52 minus 5.6), and applies in Great Britain to leave years beginning on or after 1 April 2024.
They can. An employer may include bank holidays within the 5.6 weeks or give them in addition - the contract decides which.
The 12.07% accrual rules described here are for Great Britain. Northern Ireland has its own rules, so check Northern Ireland guidance for your situation.
Many employers round part-days up to the nearest half day so staff are not short-changed. This tool offers rounding as an optional toggle and shows the exact figure either way - follow your contract or policy.
Final Thoughts
Holiday entitlement is one of the most common HR questions, and one of the easiest to get subtly wrong once part-time, mid-year, or irregular hours are involved. This tool shows its working, handles the 28-day cap and the 12.07% method correctly, and produces a clear statement — all without employee details leaving your device.
Enter the details above and download your holiday entitlement statement!