Inflation Calculator
See how inflation changes the real value of your money
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Your parents mention what a house cost in 1985 and the number sounds absurd. How much of that is inflation and how much is a real change in price? The Inflation Calculator answers that, converting money between years so the comparison actually means something.
Short answer: The Inflation Calculator is a free tool on EizTools that shows what money from one year is worth in another. Enter an amount, two years and a rate basis, and it returns the equivalent value.
What is Inflation Calculator?
It compares purchasing power across time. Ask something like what 1,000 from 1990 is worth today, and the Inflation Calculator returns the equivalent figure, the percentage change, and a note on what that money would buy then against now.
What Your Money Used To Buy
Inflation is quiet. A few percent a year feels like nothing, and over twenty years it halves what a sum will buy. That is why an old salary, an old rent or an old price only makes sense once it has been converted. Without the conversion, every comparison with the past is misleading.
Good for
- Comparing an old salary against a current offer
- Checking whether a price has genuinely risen or just kept pace
- Teaching, where the point is the mechanism rather than an exact figure
Be careful with
- The rate basis, since the result depends entirely on the rate you choose
- Housing and education, which have risen far faster than general inflation
- Treating a general index as an accurate measure of your own spending
Rate Basis And Reverse Mode
| Rate Basis | What it uses | Best for |
|---|---|---|
| Average historical CPI | A general long run average | Broad comparisons across decades |
| Conservative (2%) | A steady low rate | Forward projections in stable periods |
| High inflation (5%) | A stressed rate | Testing what happens if prices run hot |
| Custom fixed rate | The rate you supply | Matching official figures for your country |
Output View includes a reverse mode, which deflates a current figure back to an earlier year. That is the setting to use when someone quotes a historic price and you want to know what it would be in today's money, rather than the other way round.
How Does Inflation Calculator Work?
- Ask the question: "what is 1,000 from 1990 worth today, and what could it buy back then compared with now?"
- Choose which model runs the conversion.
- Set the currency you are comparing in, Rate Basis to Average historical CPI, Output View to Year-by-year, Audience to General.
- Leave Output Detail on Normal, then generate.
- Read the percentage change alongside the money figure.
- Run it again with a custom rate from your national statistics office for a closer result.
Check the rate This tool does not fetch official inflation data. It applies the rate basis you choose. For anything that matters, take the real figures from your national statistics office and enter them as a custom rate.
Best Use Cases
- Salary comparisons, where an old wage needs converting before it means anything
- Deciding whether a long term contract price needs an inflation clause
- Classroom examples, where the mechanism matters more than the exact figure
- Sanity checking a savings projection that ignores rising prices
Open any EizTools tool and there is no account step and no charge, just controls suited to that one job and a model family you select yourself. Inflation questions usually sit next to savings and salary questions, and the tool library holds the tools for those.
Frequently Asked Questions
Does the Inflation Calculator use official CPI data?
No. It applies the rate basis you select, including a custom rate you supply. For accuracy, take the published figures for your country and years, then enter them yourself.
Can it work forwards as well as backwards?
Yes. Ask what a sum today will be worth in fifteen years at a given rate, or reverse it to deflate a current amount back to an earlier year using the reverse output view.
Why does housing feel more expensive than the number suggests?
Because general inflation averages a basket of goods. Housing, education and healthcare have often risen much faster, so a general index understates the change for those specific costs.
Which rate should I pick for a projection?
Something conservative for planning, around two to three percent in most stable economies. Then rerun at a higher rate to see whether your plan still holds if prices move against you.
Comparing money across years without adjusting for inflation produces confident nonsense. Convert first, choose a rate you can defend, and treat the result as a reasonable estimate rather than an exact historical fact.
Sabir Bepari
Founder of EizTools and a passionate AI enthusiast dedicated to building practical, user-friendly AI tools that simplify everyday tasks.
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