How to calculate your office attendance percentage.

By the OfficeComply team · Updated

Short answer

Office attendance percentage = office days ÷ working days in the period × 100. To find how many office days a percentage rule needs, multiply the working days by the percentage and round up. For example, 60% of 21 working days is 12.6, so you need 13 office days.

Percentage-based return-to-office rules sound simple but get confusing once holidays, leave, and quarters are involved. These steps work for monthly, quarterly, and rolling 90-day rules.

Step by step

  1. Count the working days in the period

    Count weekdays (Monday to Friday) in the month, quarter, or rolling window your policy uses. A typical month has 20 to 23 working days; a calendar quarter has about 63 to 66.

  2. Remove days your policy excludes

    Many policies exclude public holidays, and some exclude approved leave. Subtract those days from the working-day total before calculating. If your policy does not say, ask your manager or HR.

  3. Calculate the office days required

    Multiply the remaining working days by the required percentage and round up to a whole day.

    • 60% of 21 working days = 12.6 → 13 office days
    • 50% of 20 working days = 10 office days
    • 40% of a 64-day quarter = 25.6 → 26 office days

  4. Calculate your current percentage

    Divide the office days you have completed by the working days so far and multiply by 100. Eight office days out of 14 working days is 57%.

  5. Work out how many days you still need

    Subtract the office days you have completed from the office days required. If that number is larger than the working days left, the target can no longer be met this period.

The takeaway

The arithmetic is simple; keeping it current every week is the hard part. OfficeComply applies your rule automatically, counts holidays the way you choose, and shows how many office days you still need, updated every time a day is logged.

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Frequently asked questions

How do I calculate 60% office attendance?
Multiply the working days in the period by 0.6 and round up. In a month with 22 working days, 60% is 13.2, so you need 14 office days.
Do holidays count toward office attendance?
It depends on your policy. Many rules remove public holidays from the working-day total, which lowers the number of office days required. OfficeComply lets you choose whether holidays are excluded.
What is 3 days a week as a percentage?
Three office days out of a five-day week is 60%.
How does a rolling 90-day attendance rule work?
A rolling rule looks at the most recent 90 days on any given date, so the window moves forward every day. Old office days drop out as new ones are added.

This guide is general information, not legal, employment, or HR advice. Your employer’s written policy and official records always take precedence.