Inflation Calculator

What Is an Inflation Calculator?

Prices go up over time. That's inflation. A coffee that cost $2 years ago might cost $4 today. Your money is the same, but it buys less.

This inflation calculator shows how much that change adds up to. Type in an amount, pick two years, and choose a yearly inflation rate. You'll see what your money is worth after inflation.

You can use it two ways:

• Future Value: shows how much you'll need later to buy what you can buy today.
• Past Value: shows what an amount today would have been worth in an earlier year.

Quick answer: If inflation is 3% every year, something that costs $1,000 in 2000 costs about $2,033 in 2024. That's a 103% jump in 24 years.

How to Use the Inflation Calculator

It takes less than a minute.

1. Pick Future Value or Past Value.
2. Type in the amount.
3. Choose the start year and the end year.
4. Enter a yearly inflation rate. We start you at 3%, but you can change it.
5. Click Calculate.

You'll see the new value, the total percentage change, the number of years, and the inflation factor. The table below the calculator shows the value for each year.

Tip: Try 2%, 3% and 5%. Real inflation changes every year, so a few different results give you a better picture than just one.

How the Math Works

The calculator uses the same rate for every year. It adds each year's increase on top of the last one. Here's the formula:

New value = Original amount × (1 + inflation rate) ^ number of years

• Original amount: the money you start with
• Inflation rate: the yearly rate written as a decimal (3% is 0.03)
• Number of years: how long the period is

The inflation factor is the number you multiply by. In our main example, it's about 2.033. That's why $1,000 turns into $2,033.

For Past Value, the calculator divides instead of multiplying.

A Simple Example

Say you want to know what $1,000 from the year 2000 is worth in 2024. We'll use 3% inflation.

1. From 2000 to 2024 is 24 years.
2. The inflation factor is about 2.033.
3. $1,000 × 2.033 = about $2,033.

Now the other way. $1,000 in 2024 was worth about $492 back in 2000.

What about real prices? Inflation isn't the same every year, so real numbers are a little different. The U.S. Bureau of Labor Statistics tracks prices with the consumer price index (CPI). Using that data, $1,000 in 2000 had the buying power of about $1,822 in 2024. That's about 2.5% a year, which is lower than our 3% example. If you want a closer match to real data, change the rate to fit the years you're checking.

How the Rate Changes Your Result

A small change in the rate makes a big difference over time. Here's what $1,000 would cost after 20 years:

• At 2% a year: about $1,486
• At 3% a year: about $1,806
• At 5% a year: about $2,653

There's also a quick shortcut called the Rule of 72. Divide 72 by the inflation rate to guess how many years it takes for prices to double. At 3%, that's about 24 years. At 6%, it's about 12 years.

Why Inflation Matters for You

Your pay. Say you earn $60,000 and inflation stays at 3%. You'd need about $69,556 in five years to buy the same things. In ten years, you'd need about $80,635. If your raise is smaller than inflation, you're losing buying power.

Your savings. Cash loses value as prices rise. If you keep $10,000 untouched for 20 years at 3% inflation, it would only buy what about $5,537 buys today.

Your investments. Your return only counts if it beats inflation. If you earn 4.5% and inflation is 3%, your real gain is only about 1.5%. To see how your money could grow, try our Investment Calculator.

Your retirement. If you spend $4,000 a month today, you might need about $8,375 a month in 25 years at 3% inflation to live the same way. Planning for inflation helps you avoid saving too little.

Frequently Asked Questions