BYTETOOLS

Inflation Calculator

See how inflation erodes purchasing power over time, or what a past amount is worth today. Enter an amount, rate and years. Free, private inflation tool.

$1,343.92
Future cost of same goods
$744.09
Purchasing power kept

At 3% inflation, $1,000.00 would need to grow to $1,343.92 to buy the same goods in 10 years. Estimates use a constant rate — not financial advice.

  • Projects future prices at a chosen inflation rate
  • Shows lost purchasing power of today's money
  • Reverse mode converts a past amount to today's value
  • Uses compound, year-on-year inflation
  • Currency symbol selector and instant results
  • 100% in-browser — your figures stay private

How to use the Inflation Calculator

  1. 1

    Choose a direction: future value or what a past amount is worth today.

  2. 2

    Enter the amount and pick your currency symbol.

  3. 3

    Enter the annual inflation rate and the number of years.

  4. 4

    Read the adjusted amount and the change in purchasing power.

About the Inflation Calculator

The ByteTools Inflation Calculator shows how the value of money changes over time. Enter an amount, an annual inflation rate and a number of years to see the future cost of the same goods and how much purchasing power your money loses, or work backwards to find what a past amount is worth in today's money.

It helps with long-term planning: judging whether savings keep pace with rising prices, estimating future expenses, or comparing salaries and prices across years. The tool uses standard compound inflation and runs entirely in your browser, so nothing you enter is uploaded.

Results are estimates based on the constant rate you enter and are not financial advice. Real inflation varies year to year, so use the figures as a planning guide.

Frequently asked questions

How does inflation affect the value of money?

Inflation raises prices over time, so the same amount of money buys less in the future. At 3% inflation, something costing 100 today would cost about 134 in ten years, and the purchasing power of 100 falls to roughly 74 in today's terms.

How do I calculate the future value of money with inflation?

Multiply the amount by one plus the inflation rate, raised to the number of years. For example, 1,000 at 4% for 5 years becomes about 1,217. Switch this tool to future-value mode to compute it automatically for any rate and period.

What does 'what a past amount is worth today' mean?

It adjusts an older amount up to today's money using cumulative inflation, so you can compare historical prices or salaries fairly. Enter the past amount, the average rate and the number of years to see the equivalent value now.

What inflation rate should I use?

Many people use a long-term average of about 2–3% for planning, but you can enter any rate that matches your country or a specific period. Because real inflation changes yearly, the result is an estimate rather than an exact figure.

Is my information private?

Yes. The calculator runs entirely in your browser using JavaScript. The amounts and rates you enter are never uploaded, stored or shared.

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