shift hours

Compressed Hours Calculator

Explore simple compressed schedules from weekly target hours and preferred days. This is a free calculator built for quick repeat checks on mobile and desktop.

Advice for this situation

People use compressed-hours tools when they want to see whether a shorter week or fewer workdays still fits the contracted total. In the UK, unpaid lunch breaks normally only come out of paid time when you are genuinely relieved from work, average weekly hours are usually checked over a longer reference period, and overtime premiums often come from the contract rather than one universal statutory rate.

A compressed pattern can be mathematically correct and still be impractical once travel, fatigue, or team coverage are considered. If your workplace uses paid breaks, on-call time, or shift differentials, compare the calculator result with your rota rule before treating the number as payroll-ready.

UK guidance on this page is a practical planning layer, not legal advice. If the answer affects pay, dismissal, leave entitlement, or a formal workplace process, verify it against the contract, policy, collective rule, or official guidance that applies to your role.

  • Separate paid hours from on-site hours so the lunch-break impact is obvious.
  • Compressed schedules often look easier on paper than they feel after commute and caring time are added.
  • A valid schedule should fit both the total hours and the realistic available day window.

What you can enter

  • Weekly required hours
  • Days to work: Choose from 3 days, 4 days, 5 days.
  • Break minutes per day

Example uses

  • Compressed four-day week - See average paid and on-site time per day.

Frequently asked questions

  • Does this include breaks? Yes. Break minutes are added back into on-site schedule length.

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