How to use
Enter current base pay and choose its period: annual, monthly, twice monthly, every two weeks, weekly, daily or hourly. Choose whether the change is a percentage, a money amount or a known new pay level. Use the paid weekly schedule for hourly and daily equivalents.
Optional sections compare purchasing power with an inflation percentage you supply and estimate a year split between old and new pay. All amounts are gross base pay before tax and deductions. Currency selection changes the label without converting money.
Calculation method
Percentage mode changes pay by current × percentage / 100. Amount mode adds or subtracts the entered change; new-pay mode compares the new and old levels. The percentage change divides the difference by current pay when that base is positive.
Average annual conversion uses 12 monthly, 24 twice-monthly, 26 biweekly or 52 weekly periods. Hourly and daily equivalents use the paid schedule. For inflation i, real new pay = nominal new pay / (1 + i / 100). The part-year estimate weights the annual old and new equivalents by the entered months at each level.
Worked example
A 5% rise on 50,000 per year gives 52,500, an increase of 2,500 annually or about 208.33 per average month. With 3% inflation over the comparison interval, real new pay in starting-period money is about 50,970.87: real growth is approximately 1.94175%, not exactly 2%.
If six equivalent months use the old 50,000 rate and six use 52,500, modeled year pay is 51,250.
Keep the comparison consistent
Twice monthly is not every two weeks. Average periods are not a prediction of actual pay dates. A changed paid-hours schedule affects hourly and salary equivalents differently; this calculator does not compare two distinct schedules. Inflation is user-entered, not a live economic feed. Part-year figures use proportional months rather than payroll dates.
For separate schedules and paid or unpaid leave, use the salary to hourly calculator. For logged shifts and selected overtime rules, use the work hours calculator.
For the measurement and planning details, read understanding a pay rise across periods and inflation.