Calculator guide

UK Annual Leave Calculator

This free UK Annual Leave Calculator helps you determine your statutory holiday entitlement under UK law. Whether you work full-time, part-time, or irregular hours, this tool calculates your exact leave allowance. Under the Working Time Regulations 1998, almost all workers in the UK are entitled to 5.6 weeks of paid annual leave per year. For a standard 5-day week, this equals 28 days including bank holidays. Part-time workers receive a pro-rata entitlement based on the days or hours they work. This calculator handles various scenarios including new starters, leavers mid-year, and workers with irregular schedules. It provides both statutory minimum entitlement and accounts for whether your employer includes bank holidays in your allowance.

leave

Category

beginner

Difficulty

2 minutes

Time needed

2025-01-15

Last reviewed

Why use this calculator

Instant calculation of your statutory leave entitlement

Calculate your UK statutory annual leave entitlement based on the Working Time Regulations 1998.

Works for full-time, part-time, and variable hours contracts

Calculate your UK statutory annual leave entitlement based on the Working Time Regulations 1998.

Calculates pro-rata entitlement for new starters and leavers

Calculate your UK statutory annual leave entitlement based on the Working Time Regulations 1998.

Shows whether bank holidays are included

Calculate your UK statutory annual leave entitlement based on the Working Time Regulations 1998.

Based on official UK government guidelines

Calculate your UK statutory annual leave entitlement based on the Working Time Regulations 1998.

Inputs and outputs

Inputs

Employment Type: radio - Select the type that best matches your working pattern

Days worked per week: number - Enter the number of days you work each week

Hours worked per week: number - Enter your contracted weekly hours

Does your employer include bank holidays in your leave allowance?: radio - Check your employment contract if unsure

Employment start date (optional): date - For calculating pro-rata entitlement for new starters

Leave year: select - Select the leave year for calculation

Outputs

Total Annual Leave Entitlement: days - Your total statutory leave entitlement for the year

Entitlement in Hours: hours - Your entitlement converted to hours

Bank Holidays: days - Number of bank holidays in the leave year

Net Annual Leave (excluding bank holidays): days - Leave days you can take flexibly

Methodology

Calculation method

Based on the Working Time Regulations 1998. Full-time workers receive 5.6 weeks (28 days for 5-day week). Part-time workers receive pro-rata entitlement calculated as: (days worked per week / 5) × 28 days.

Formula: Entitlement = (Days per week ÷ 5) × 28 days

How it works

Enter your employment type (full-time, part-time, or irregular)

Specify your working pattern (days or hours per week)

Indicate whether bank holidays are included in your allowance

Optionally add your start date for pro-rata calculation

Click Calculate to see your entitlement

Compliance note

This calculator provides estimates based on UK statutory minimum entitlements under the Working Time Regulations 1998. Your actual entitlement may differ based on your employment contract, which may offer more generous terms. This is not legal advice. Always check your contract and consult HR for your specific entitlement.

Legal basis: Working Time Regulations 1998 (as amended)

Example scenarios

Full-time Employee

Standard 5-day week worker

Why it matters: A full-time worker receives the maximum 28 days statutory leave. With 8 bank holidays included, they have 20 days to take flexibly.

Part-time (3 days/week)

Part-time worker on 3 days per week

Why it matters: Part-time entitlement is calculated as (3÷5) × 28 = 16.8 days. Bank holidays are given separately.

New Starter (Mid-Year)

Employee starting in July 2025

Why it matters: Starting mid-year, entitlement is pro-rated for the remaining 6 months: 28 × (6÷12) = 14 days.

Frequently asked questions

What is the minimum annual leave entitlement in the UK?

Almost all workers in the UK are legally entitled to 5.6 weeks of paid annual leave per year. For someone working 5 days a week, this equals 28 days. This can include bank holidays.

How is part-time annual leave calculated?

Part-time workers receive a pro-rata entitlement. Multiply the number of days you work per week by 5.6. For example, if you work 3 days per week: 3 × 5.6 = 16.8 days per year.

Can my employer include bank holidays in my annual leave?

Yes, employers can include the 8 UK bank holidays as part of your 28-day statutory entitlement. Check your employment contract to see how your employer handles bank holidays.

What happens to unused annual leave?

By law, workers must be allowed to carry over up to 4 weeks of unused leave if they were unable to take it due to maternity/paternity leave, sick leave, or if the employer prevented them from taking it. Otherwise, carryover is at the employer's discretion.

How is leave calculated for zero-hours contracts?

Zero-hours and irregular workers accrue leave at 12.07% of hours worked. This can be calculated as you go or given as rolled-up holiday pay (though the latter has legal complexities).

Do I get paid for annual leave?

Yes, annual leave must be paid at your normal rate of pay. For workers with variable pay, it should be based on the average pay over the previous 52 weeks (or fewer if you have not worked that long).