Free Inflation Calculator
See how inflation erodes your purchasing power — and how much you need to keep up
Inflation Details
Purchasing Power Lost
Purchasing Power Over Time
| Year | Purchasing Power | Needed to Match Today | Value Lost |
|---|---|---|---|
| 1 | $97,087 | $103,000 | $2,913 |
| 3 | $91,514 | $109,273 | $8,486 |
| 5 | $86,261 | $115,927 | $13,739 |
| 7 | $81,309 | $122,987 | $18,691 |
| 9 | $76,642 | $130,477 | $23,358 |
| 11 | $72,242 | $138,423 | $27,758 |
| 13 | $68,095 | $146,853 | $31,905 |
| 15 | $64,186 | $155,797 | $35,814 |
| 17 | $60,502 | $165,285 | $39,498 |
| 19 | $57,029 | $175,351 | $42,971 |
| 20 | $55,368 | $180,611 | $44,632 |
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How to Use the Inflation Calculator
Start by entering your values using the sliders above. Each input updates the results instantly in real time. Adjust different scenarios to compare outcomes — for example, see how a higher contribution or a different rate changes your results. All calculations happen in your browser so your data stays completely private. You can download the results as a PDF for your records or to share with a financial advisor.
Why This Calculator Matters
Making informed inflation decisions can save you thousands of dollars over time. Many people rely on rough estimates or rules of thumb that do not account for their specific situation. This calculator uses precise mathematical formulas to give you personalized results based on your actual numbers. Whether you are planning ahead, comparing options, or checking a professional recommendation, having accurate calculations helps you make confident financial decisions. Use this tool alongside our related calculators for a complete picture of your finances.
Frequently Asked Questions
What is inflation?
Inflation is the rate at which the general level of prices rises over time, reducing purchasing power. When inflation is 3% annually, $100 today will only buy what $97 worth of goods buys next year.
What is the average inflation rate?
The US Federal Reserve targets 2% annual inflation. The historical average US inflation rate is about 3.1% per year. Periods of high inflation like 2021-2023 saw rates of 7-9%.
How does inflation affect savings?
If your savings earn less interest than the inflation rate your money is losing purchasing power. At 3% inflation $100,000 today will only be worth about $74,000 in purchasing power after 10 years.
What is the best protection against inflation?
Investing in assets that historically outpace inflation such as stocks, real estate, TIPS (Treasury Inflation-Protected Securities) and I-bonds. Keeping cash in a high yield savings account helps too.
How do I calculate inflation?
Future value = Present value × (1 + inflation rate)^years. For example $100,000 at 3% inflation over 10 years = $100,000 × (1.03)^10 = $134,392 needed to maintain the same purchasing power.