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Inflation calculator

See how inflation changes the value of money over a number of years.

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Need Same value in future money, Today's buying power then? The Inflation calculator derives it from Amount today, Inflation rate (%/yr), Years in one step. For instance, with Amount today = $1,000.00, Inflation rate (%/yr) = 3 and Years = 10 it returns Same value in future money = $1,343.92 and Today's buying power then = $744.09.

How to use it

  1. Enter your values: Amount today, Inflation rate (%/yr), Years.
  2. Read the result instantly: Same value in future money, Today's buying power then.

Frequently asked questions

What does the Inflation calculator actually compute?

It takes Amount today, Inflation rate (%/yr) and Years and derives Same value in future money and Today's buying power then from them. The calculation is live as you type, so the result updates on every change.

What information do I need to provide?

3 values: Amount today ($), Inflation rate (%/yr) and Years. Nothing else is required — no account, no file upload.

Can you show a worked example?

With Amount today = $1,000.00, Inflation rate (%/yr) = 3 and Years = 10, the calculator returns Same value in future money = $1,343.92 and Today's buying power then = $744.09. Those figures come from running this exact tool, so you can reproduce them by entering the same values.

What happens if I enter larger values?

It moves a lot. Using Amount today = $2,000.00, Inflation rate (%/yr) = 3.3 and Years = 20 instead, Same value in future money goes from $1,343.92 to $3,828.57 — which is why it is worth testing a few scenarios rather than trusting a single figure.

What does it give for smaller values?

Scaled down to Amount today = $500.00, Inflation rate (%/yr) = 2.7 and Years = 5, Same value in future money comes out at $571.24. The relationship is worth checking at both ends before you rely on a single result.

When would I actually use this?

Planning a deposit, a safety net or a large purchase: how much to put aside each month, and how long a target takes at a given rate.

What is the most common mistake?

Reading a nominal rate as if it were real. Inflation is subtracted from the return, not from the capital, so a 3% account during 4% inflation loses purchasing power every year.

How accurate is it, and what are the limits?

Estimate only — not financial advice.

What is the difference between the Inflation calculator and the Inflation-adjusted return calculator?

This one returns Same value in future money and Today's buying power then; the Inflation-adjusted return calculator returns Real return. That is the whole difference — open the one whose figure you need.

Is there a tool for the next step?

Continuous compounding calculator is the closest one after this: Compounding at every instant instead of yearly: FV = P·eʳᵗ. It gives the future value, the interest earned and the effective annual yield — the ceiling that ordinary compounding approaches as it compounds more often.

Further reading

All guides →
ExplainerHow Inflation Eats Your SavingsInflation quietly cuts what your money can buy. Here's what it is, how it erodes cash, the rule of 72 for prices, and how to protect your savings.ExplainerHow Wrong Is Nominal Minus Inflation? Exactly One Year's Inflation WrongThe subtraction is not an approximation of the Fisher relation — it is the exact answer multiplied by (1 + i). At 8 percent nominal and 3 percent inflation the real return is 4.8544 percent, the shortcut says 5, and the error is exactly 3 percent of the answer. Always.ComparisonRegulated Savings, a Euro Fund or a Fixed-Term Deposit: the Ranking Inverts TwiceThe product paying the second-highest headline rate finishes last, and the reason is a tax change that took effect in January 2026. The three French savings vehicles scored on identical criteria: rate, tax, net return, real return, and what each one costs you in access.ExplainerWhat Is CAGR (and How to Use It)?CAGR turns an investment's whole journey into one steady yearly rate. Here's what it means, the formula, why it's useful for comparing, and what it hides.ExplainerCollege Costs Compound for Eighteen Years Before Anyone EnrolsA four-year public in-state budget is 30,990 dollars today. Eighteen years out at 4 percent cost inflation the same four years cost 266,593 — 2.15 times the sticker you can see now. And the sticker was never the price: the average net cost of attendance is 21,340.ExplainerActual Cash Value: The Subtraction You Agreed To Before the LossA twelve-year-old roof that costs $20,000 to replace is worth $10,400 on a straight-line schedule. After a $2,000 deductible, an actual cash value policy pays $8,400 and a replacement cost policy pays $18,000 — same roof, same loss, $9,600 apart.