holiday entitled calculator

How this holiday entitled calculator works

This calculator gives you a practical estimate of annual leave entitlement and remaining holiday balance. It supports two common scenarios:

• Fixed schedule: where someone works a regular number of days each week.
• Irregular hours: where shifts and weekly hours vary significantly.

For fixed schedules, the estimate uses the widely referenced 5.6 weeks approach. For irregular schedules, it applies a 12.07% accrual estimate based on hours worked. While these methods are common, employers can implement holiday policies in different ways, so always compare your result to your contract and HR policy.

Fixed days per week: formula and examples

Core formula

For regular workers, the baseline annual entitlement in days is:

Annual days = min(days per week × 5.6, 28)

If someone worked only part of the leave year, this estimate is pro-rated:

Pro-rated entitlement = annual days × (months worked ÷ 12)

Then remaining holiday is simply:

Remaining = pro-rated entitlement − holiday already taken

Example

If you work 4 days/week and have worked 9 months in the current leave year:

• Annual entitlement = 4 × 5.6 = 22.4 days
• Pro-rated entitlement = 22.4 × (9/12) = 16.8 days
• If you already took 6 days, remaining = 10.8 days

Irregular or variable hours: accrual method

For workers with changing hours, many payroll setups estimate holiday accrual as a percentage of hours worked:

Holiday hours accrued = total hours worked × 0.1207

This calculator also subtracts holiday already taken in hours, then converts both entitlement and remainder into day-equivalents using your standard day length.

Example

• Total hours worked so far: 520
• Holiday accrued: 520 × 0.1207 = 62.76 hours
• Holiday taken: 20 hours
• Remaining: 42.76 hours
• If a day is 7.5 hours, remaining is about 5.70 days

What this calculator helps you decide

• How much leave you still have available
• Whether you are pacing leave usage across the year
• How many full days off you can request
• Whether your records align with payroll or HR records

Common mistakes to avoid

1) Mixing calendar year and leave year

Some companies run leave year from January to December, while others use a different cycle. Enter months worked in the correct leave-year period.

2) Ignoring taken leave

Always subtract leave already used. The most common mismatch between employee and payroll records is forgetting earlier time off.

3) Using the wrong day length

If your normal day is not 8 hours, update the hours-per-day field. This affects day/hour conversions significantly.

4) Assuming legal advice

This is an educational calculator, not legal counsel. Local regulations and contract terms can override general formulas.

Quick checklist before submitting a holiday request

• Confirm your leave year dates
• Check total leave already taken
• Review bank holiday treatment in your contract
• Verify manager approval rules and notice periods
• Compare your estimate with HR system balance

Done right, a holiday entitlement calculation is straightforward and helps prevent end-of-year surprises. Use the calculator above whenever your work pattern changes, or before making a large leave request.