Inflation Calculator

Ever wonder how much a dollar from years ago is worth today? Our Inflation Calculator helps you see how the purchasing power of money changes over time due to inflation. Just input an amount, its original year, and a target year to find its equivalent value.

Initial Amount

The value of money at the start year (e.g., 1000).

Start Year

The year the initial amount was relevant (e.g., 2000).

End Year

The year you want to compare its value to (e.g., 2023).

Average Annual Inflation Rate (%)

The average yearly percentage increase in prices (e.g., 3.5 for 3.5%).

How it works

Ever wonder how much a dollar from years ago is worth today? Our Inflation Calculator helps you see how the purchasing power of money changes over time due to inflation. Just input an amount, its original year, and a target year to find its equivalent value.

The Formula

Future Value = Initial Amount × (1 + Inflation Rate)^Years

Worked Example

Example: The Value of £500 in 2005 Today
Imagine you had £500 in 2005. If the average annual inflation rate has been 2.5%, what would that £500 be worth in terms of purchasing power in 2023? Years = 2023 - 2005 = 18 years. Inflation Rate = 2.5% = 0.025. Future Value = £500 × (1 + 0.025)^18 = £500 × (1.025)^18 ≈ £500 × 1.5596 ≈ £779.80. So, to buy what £500 bought in 2005, you'd need approximately £779.80 in 2023.

Tips, Assumptions & Limitations

Use average annual inflation rates for a more accurate estimate over long periods.
Remember that inflation rates can vary significantly year by year; this calculator uses an average.
This tool helps understand purchasing power, not investment growth.

FAQ

Inflation is the rate at which the general level of prices for goods and services is rising, and subsequently, the purchasing power of currency is falling. It means your money buys less over time.

This calculator uses a simple compound interest formula, but in reverse for purchasing power. It takes your initial amount, the number of years, and an average annual inflation rate to estimate what that initial amount would be worth in a future year to maintain the same purchasing power.

Official government statistics agencies, like the Bureau of Labor Statistics (BLS) in the US or the Office for National Statistics (ONS) in the UK, provide historical inflation data. Financial news sites often summarize this data.