Macroeconomics

Inflation Calculator

Enter an amount, an inflation rate and a number of years to see what it will cost in the future.

  • Free
  • No sign-up
  • Updated for 2026

Amount & inflation

$
%
yr

Enter an amount, inflation rate and years to see the future cost.

Worked example

With these example inputs:

  • Amount today$1,000
  • Inflation rate3%
  • Years10 yr

Future cost: $1,344

  • Amount today$1,000
  • Price increase$344

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What this inflation calculator does

This calculator shows the effect of inflation over time. You enter an amount and a time span. You add an inflation rate to apply. The tool then shows the change in value. It reveals how buying power shifts. You can compare different rates and years. The result makes inflation easy to grasp.

What inflation is

Inflation is a general rise in prices. Over time, things cost more money. The same cash buys less than before. It affects nearly everything you purchase. A little inflation is normal and expected. High inflation can strain a budget. It quietly shapes your finances each year.

How inflation erodes value

Inflation slowly erodes your money. A sum kept as cash loses power. What it buys shrinks year by year. The amount stays the same on paper. But its real value keeps falling. This is why cash alone can lose. Inflation is a steady, quiet drain.

The inflation rate

The inflation rate measures price rises. It is given as a yearly percent. A higher rate erodes value faster. A lower rate is gentler on your money. Rates change with the wider economy. They can vary a lot over time. The calculator uses the rate you enter.

Money today versus the future

A sum today is worth more than later. Inflation is a key reason why. Future money buys less than it does now. So a fixed amount shrinks in real terms. This matters for long-term plans. A pension must outpace inflation. Always think in future buying power.

Inflation and your savings

Inflation is a threat to idle savings. Cash in a low-rate account can fall behind. Its value drops if prices rise faster. To keep up, savings must earn enough. The interest should beat the inflation rate. Otherwise your money slowly loses ground. Aim to grow faster than prices.

Real versus nominal value

Nominal value is the plain amount. Real value adjusts for inflation. Real value shows what money truly buys. A balance can grow yet lose real value. The real figure is what matters most. Always look beyond the headline number. It tells the honest story of your money.

How to use it

Enter the amount you want to check. Add the number of years to span. Choose an inflation rate to apply. Read the change in value over time. Then try a different rate and compare. See how buying power shifts. Use it to plan for the long term.

Protecting against inflation

You can guard against inflation in several ways. Investing aims to beat it over time. Assets that grow can outpace rising prices. Holding only cash is the main risk. A diversified plan spreads that risk. Long horizons help your money keep up. Aim for growth above the inflation rate.

Common mistakes to avoid

A common mistake is ignoring inflation entirely. A plan can look better than it is. Another is holding too much idle cash. Some judge growth by the nominal figure. Others forget inflation over long spans. Time magnifies its quiet effect. A realistic view avoids these traps.

A final tip

Always factor inflation into your plans. Think in real value, not just nominal. Do not let savings sit idle for years. Aim to grow your money above inflation. Review your plan as rates change. A long horizon helps you stay ahead. Beating inflation protects your future.

Frequently asked questions

How is future cost calculated?

The amount is compounded by the inflation rate over the years. At 3% inflation, something costing $1,000 today would cost about $1,344 in 10 years.

Is inflation always compounded?

Yes, each year's rise builds on the new, higher price, so costs grow faster over time. That compounding is why even low inflation adds up noticeably across a decade.

What does this tell me about purchasing power?

It shows what a sum of money is worth in another year once rising prices are taken into account. The same amount buys less as inflation builds up over time.

Why does inflation matter for savings?

Cash slowly loses value, so a return that merely matches inflation leaves you no better off. To grow in real terms, savings and wages need to outpace the inflation rate.

What inflation rate should I use?

Many people use a long-run average of around two to three percent, but you can enter any figure. Real inflation varies year to year, so it helps to test a few rates.