See overtime hours, weighted hours, and optional pay totals in quick or detailed mode. This is a free calculator built for quick repeat checks on mobile and desktop.
People use overtime calculators when they need a clear distinction between standard hours, premium hours, and what that might mean for gross pay. 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.
Overtime disputes often start because one side is using the contract threshold and the other is using a rough guess based on the rota. 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.