This New Zealand calculator answers a question many workers quietly worry about: has my pay actually kept up with the cost of living? You enter your salary at a past date and your salary now, and the tool compares the change against inflation over the same period, showing whether your real, inflation-adjusted income has risen, held steady, or gone backwards. Because inflation figures change over time, the calculator takes the relevant inflation rate as an input drawn from current data. The breakdown shows your nominal pay rise, the amount needed just to keep pace with inflation, and the real gain or loss in today dollars, giving you a clear, evidence-based picture to inform a pay review conversation or simply to understand why your money does not stretch as far as it used to.
Enter the cumulative inflation between your two salary points, taken from the Consumers Price Index. Inflation changes over time, so use current data. This compares buying power only and does not adjust for tax. General information, not financial advice.
The calculator increases your earlier salary by the inflation over the period to find what it would need to be today simply to maintain the same buying power. It compares that figure with your current salary. If your salary now is higher than the inflation-adjusted figure, you have a real gain; if lower, your buying power has fallen even if the number on your payslip went up. The real change percentage expresses this in today dollars.
An earlier salary of $60,000 with 18% inflation since would need to be $70,800 today just to keep pace. A current salary of $68,000 is below that, so despite an $8,000 nominal rise, buying power has actually fallen by around $2,800 in today dollars.
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