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Inflation Adjustment Calculator

Quick answer

Real value = nominal ÷ (1+i)^t: 100,000 held 10 years at 3% inflation keeps the purchasing power of ≈74,400 today.

  • Results update as you type.

Figures are estimates from this calculator’s standard formula — adjust the inputs in the tool below for your exact number.

How Does the Inflation Adjustment Calculator Work?

Real value = nominal ÷ (1 + inflation)^years

Inflation adjustment restates future or past money in constant purchasing power. The calculator converts any nominal amount into today's equivalents at a chosen rate. Mathematically, the engine applies Real value = nominal ÷ (1 + inflation)^years. Holding 100,000 in cash for 10 years at 3% inflation leaves real purchasing power of 100,000 ÷ 1.03^10 ≈ 74,400 — a quarter of the value silently burned. Everything you enter stays in your browser, and the answer appears in the same units as your inputs the moment the figures are complete.

  1. 1

    Step 1

    Fill in each input field with your own data.

  2. 2

    Step 2

    The tool runs the formula Real value = nominal ÷ (1 + inflation)^years on your figures.

  3. 3

    Step 3

    Review the result displayed on screen.

  4. 4

    Step 4

    Refine the inputs until the numbers fit your case.

Use Cases

Savings erosion check

Seeing cash decay over a horizon

Salary offer adjustment

Comparating pay across years honestly

Retirement planning

Restating future needs in today's money

Rent and price history

Putting old figures into current terms

Common Mistakes

  • Adjusting the wrong direction

  • Using salary growth as inflation

  • One-shot adjustments

FAQs

What rate should I assume?

Long-run CPI lands near 2–3%; recent spikes ran higher — model both and stress the plan.

Nominal vs real returns?

Real = (1 + nominal) ÷ (1 + inflation) − 1: an 8% nominal return at 3% inflation is only ≈4.85% real.

What formula does the Inflation Adjustment Calculator use?

It computes Real value = nominal ÷ (1 + inflation)^years — with i is the annual inflation rate and t the years held.

How do I know the result is right?

The Inflation Adjustment Calculator uses the standard closed-form formula shown above; the accuracy depends only on the figures you supply.

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