Work & pay calculators
Use the pay tools for gross amounts and the time tools for the hours, shifts or calendar you enter. These calculators do not calculate take-home pay or decide statutory leave, overtime or notice rights.
Choose the right calculation
- Gross Salary Converter: Hourly to Annual Pay
Convert a gross pay amount between hourly, weekly, monthly and annual periods.
- Work Hours Calculator with Breaks
Total worked time from start, finish and break entries.
- Pro Rata Gross Salary for Part-Time Hours
Adjust gross full-time pay for agreed part-time hours and a stated month fraction.
- Add or Subtract Business Days Calculator
Add or subtract business days using a supported working week and your closure dates.
All work & pay tools
Gross Bonus Amount and Percentage Calculator
Calculate a gross bonus from salary, percentage and an eligibility fraction, or infer the bonus percentage from a known gross amount.
Open calculator Work & payBradford Factor Absence Score Calculator
Calculate a Bradford Factor score from separate absence spells and total days over a consistent policy period, with partial days supported.
Open calculator Work & payCompa Ratio Calculator: Salary vs Range Midpoint
Compare an employee's salary with a salary-range midpoint and express the result as a percentage, using a consistent full-time or part-time basis.
Open calculator Work & payGross Salary Package Comparison Calculator
Compare two gross salary packages using expected bonuses, valued benefits and work-related costs, without estimating PAYE or take-home pay.
Open calculator Work & payGross Salary Converter: Hourly to Annual Pay
Convert gross hourly, daily, weekly, monthly or annual pay using your paid schedule, or calculate a daily rate with an agreed period divisor.
Open calculator Work & payAnnual Leave Converter: Hours to Days
Convert an existing annual leave balance between hours and days using the hours in your contractual leave day, without calculating entitlement.
Open calculator Work & payTime Off in Lieu Hours and Days Calculator
Convert eligible overtime into time off in lieu using an agreed multiplier and leave-day length, with results shown in both hours and days.
Open calculator Work & payGross Back Pay and Wage Arrears Calculator
Estimate gross back pay from the correct and paid rate, affected units and confirmed adjustments, without calculating payroll tax or a legal award.
Open calculator Work & payLength of Service Calculator: Years and Days
Calculate calendar years, months and days of service between two dates, plus a separate counted-day total after documented service exclusions.
Open calculator Work & payBusiness Days Between Dates Calculator
Count business days between two dates using your working week, selected date boundaries and a list of holiday or workplace closure dates.
Open calculator Work & payNotice Period End Date Calculator
Find a notice period end date from a known start, length and calendar convention, including month-end adjustment and an optional inclusive final day.
Open calculator Work & payAdd or Subtract Business Days Calculator
Add or subtract business days from a starting date with your working week and closure list, treating the starting date as day zero.
Open calculator Work & payShift End Time Calculator with Unpaid Breaks
Find your shift finishing time from clock-in, required working hours and unpaid breaks, including overnight finishes and second-level timing.
Open calculator Work & payWork Hours Calculator with Breaks
Total working hours across shifts, subtract unpaid breaks and handle overnight finishes, with an optional known clock-change adjustment.
Open calculator Work & payPay Rise Calculator: New Pay and Percentage
Calculate new gross pay from a percentage increase, or find the percentage change between old and new pay on the same working-hours basis.
Open calculator Work & payGross Overtime Pay Calculator
Estimate gross overtime and total period pay from eligible hours, a basic hourly rate and an agreed premium, without assuming a legal multiplier.
Open calculator Work & payAverage Working Hours per Period Calculator
Find the arithmetic mean of comparable working-hour totals, entered as decimals or durations, without treating it as a statutory compliance test.
Open calculator Work & payAnnual Salary Growth Projection Calculator
Project an annual salary over a chosen number of years at a constant percentage change, showing a scenario rather than promised future pay.
Open calculator Work & payEmployee Retention Rate Calculator
Calculate what percentage of an original employee cohort remains at the end of a review period, keeping new hires outside the starting cohort.
Open calculator Work & payEmployee Turnover Rate Calculator
Calculate staff turnover from departures and average headcount, using a known average or equally spaced observations over an annual or other period.
Open calculator Work & payPro Rata Gross Salary for Part-Time Hours
Prorate a full-time annual salary for agreed weekly hours and a stated month fraction, without assuming a partial-month payroll convention.
Open calculator Work & payWorkforce Absenteeism Rate Calculator
Calculate absence as a percentage of scheduled staff time using matching hours or days, a consistent period and the same employee population.
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