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See how inflation affects the value of money over time. Calculate the real value of a past or future amount adjusted for inflation.
In 2025, $100.00 from 1980 is worth
Total Inflation Rate
0.00%
Avg. Annual Inflation
0.00%
Everything you need to know
Inflation is the rate at which the general level of prices for goods and services increases over time, reducing the purchasing power of money. A dollar today buys less than a dollar did 10 years ago. Understanding inflation is crucial for financial planning because it determines how much money you'll actually need in the future to maintain your current lifestyle. An investment returning 5% might seem good, but if inflation is 3%, your real return is only 2%.
The Consumer Price Index (CPI) measures inflation by tracking price changes in a basket of consumer goods and services (food, housing, transportation, medical care). The CPI is the most commonly used inflation measure and reflects the average change in prices paid by consumers over time. Learning to adjust for inflation helps you evaluate historical prices, plan retirement, and understand real investment returns.
Using our inflation calculator is straightforward:
Enter the Amount or Price
Select the Starting Year
Select the Target Year
View Inflation-Adjusted Amount
Analyze the Impact
Adjusted Amount = Original Amount × (CPI in Target Year / CPI in Original Year)
Example: What was $100 in 1990 worth in 2023?
This means you'd need $233 in 2023 to buy what $100 bought in 1990.
Average Annual Rate = (Ending CPI / Beginning CPI)^(1/Years) - 1
Example: From 1990 to 2023 (33 years)
Real Return = Nominal Return - Inflation Rate
Example: 6% investment return with 2.5% inflation Real Return = 6% - 2.5% = 3.5% real return
Your investment grows 3.5% in real purchasing power terms.
Scenario: What did common items cost decades ago?
Movie Ticket:
Gas per gallon:
House:
Scenario: Got 3% raise; is that keeping up with inflation?
Your situation:
Real raise calculation:
Impact: Your salary increased, but purchasing power rose only 0.6%. You're barely staying ahead of inflation.
Decision: If inflation averages 2.5%/year, ask for 4-5% annual raises to get meaningful real raises.
Scenario: Planning retirement in 25 years, need $50,000/year today
What will $50,000/year cost in 25 years?
Assuming 2.5% average inflation:
Retirement savings calculation:
Scenario: Started job at $35,000 in 2010, now at $65,000 in 2024
Question: Have you had real salary growth?
Adjust 2010 salary to 2024 dollars:
Real salary growth:
Assessment: Good career progression. You've outpaced inflation significantly.
Scenario: Investment portfolio returns analysis
Investment A (Bonds):
Investment B (Stock Index):
Long-term impact over 30 years:
This shows why stock market investing beats bonds for long-term wealth building.
Nominal return is the percentage gain without considering inflation. Real return accounts for inflation and shows true purchasing power growth. A 5% return with 3% inflation is really 2% real return.
The CPI basket includes:
Your personal inflation rate might differ based on spending patterns.
Inflation helps borrowers—fixed-rate debt becomes less burdensome. A $200,000 mortgage is fixed, but if inflation averages 2.5%, the loan's real burden decreases over time. This is why fixed-rate mortgages are valuable inflation hedges.
Opposite of inflation, deflation means prices fall. Rare but serious—delays purchases (prices might fall more), increases real debt burden, and is economically harmful. Central banks target ~2% inflation to avoid deflation.
| Years | 2% Inflation | 3% Inflation | 4% Inflation |
|---|---|---|---|
| 5 years | $904 | $863 | $822 |
| 10 years | $820 | $744 | $676 |
| 20 years | $672 | $554 | $456 |
| 30 years | $552 | $412 | $308 |
Higher inflation dramatically erodes purchasing power. $1,000 at 4% inflation becomes worth only $308 after 30 years.
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This calculator is provided for educational and informational purposes only. It is not financial, legal, tax, or investment advice. The results are estimates based on the assumptions and inputs you provide.
Actual results may differ significantly due to:
Please consult with a qualified financial advisor, tax professional, or attorney before making any financial decisions. Past performance does not guarantee future results. Always verify important calculations independently before relying on them.