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Inflation-Adjusted Salary Calculator

Enter a past salary, inflation rate, and years to see its value today.

How it is calculated

The tool compounds a single average inflation rate over the period: factor = (1 + rate/100)years and adjusted = salary × factor. Salary is the past amount, rate is the average yearly inflation in percent (4.5 means 4.5%) and years is how long ago that salary was earned. It shows the adjusted amount, the factor to four decimals, and the difference adjusted − salary, which is the extra money needed today to keep the same purchasing power. The tool does not use real CPI tables, so the quality of the answer depends on the average rate you enter. A negative number of years works backwards, converting a current salary to an earlier year's value.

Worked example

A salary of 3000 was earned 8 years ago and average inflation was 4.5% per year. Step 1: factor = 1.045⁸ ≈ 1.4221. Step 2: 3000 × 1.4221 = 4,266.30. Step 3: the difference is 4,266.30 − 3,000 = 1,266.30. Today the same buying power needs $4,266.30, a factor of 1.4221×, which is $1,266.30 more than the old figure.

Try this example →

Common mistakes

  • Entering the rate as 0.045 instead of 4.5; the tool reads it as 0.045%, so the result would barely change.
  • Using a single year's inflation for a long period, when the average over the whole span is needed.
  • Comparing the result to a gross salary today while the old figure was net, or the reverse.
  • Using the pay raise percentage as the rate; the rate is price inflation, and the raise is compared to the result afterwards.
  • Counting the wrong number of years, for example 2015 to 2024 is 9 years, not 10.

About this calculator

This calculator applies the standard purchasing-power adjustment formula: today's equivalent = past salary × (1 + average annual inflation rate)^number of years. It's the same compounding logic used to build a Consumer Price Index (CPI) deflator — each year's inflation erodes the real value of a fixed nominal amount, so the further back the salary and the higher the average rate, the bigger the gap between the number on the old payslip and what it can actually buy now.

HR and compensation analysts use this kind of adjustment to benchmark whether a raise has kept pace with the cost of living, while job seekers and economists use it to compare an old offer or historical wage data against today's prices on an apples-to-apples basis.

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