Inflation Calculator
See how inflation erodes purchasing power and calculate the real value of money over time.
Inflation Settings
Calculation Mode
Amount
$
Starting Year
▼
What was $X worth in this year?
Inflation Rate (Annual Average)
%
US historical average: ~3.0%. Recent years: 3-7%
Purchasing Power Analysis
Original Value
$1,000
in 2000
Adjusted Value
$1,806
in 2024
What Your Money Can Buy
2000
$1,000
Full Value
→
2024
$554
Real Value
-44.6% Purchasing Power Lost
Your money buys 44.6% less than before
Cumulative Inflation
+80.6%
Price Multiplier
1.81x
Years Calculated
24
Avg Annual Rate
3.0%
Purchasing Power Decline Over Time
Year 0
Year 12
Year 24
US Historical Inflation Rates
1913-2023
3.2%
2000-2023
2.6%
2020-2023
5.4%
What is Inflation?
Inflation is the rate at which the general level of prices for goods and services rises, eroding purchasing power. When inflation occurs, each unit of currency buys fewer goods and services.
Future Value = Present Value × (1 + inflation rate)^years
Purchasing Power = Original Amount ÷ (1 + inflation rate)^years
Purchasing Power = Original Amount ÷ (1 + inflation rate)^years
For example, at 3% annual inflation, prices double approximately every 24 years (the “Rule of 72”).
Historical Inflation Impact
Here’s how $100 from different decades would need to grow to have the same purchasing power today:
Year
$100 Then
Equals Today
Increase
1970
$100
~$800
8x
1990
$100
~$240
2.4x
2000
$100
~$180
1.8x
2010
$100
~$140
1.4x
The Rule of 72
A quick way to estimate how long it takes for prices to double (or purchasing power to halve):
Years to Double = 72 ÷ Inflation Rate
Inflation Rate
Prices Double In
2%
36 years
3%
24 years
5%
14.4 years
7%
10.3 years
Protecting Against Inflation
- Invest in stocks: Historically, equities have outpaced inflation over the long term (~10% vs ~3%).
- Consider TIPS: Treasury Inflation-Protected Securities adjust with inflation.
- Real estate: Property values and rents typically rise with inflation.
- I Bonds: US savings bonds with inflation-adjusted interest rates.
- Commodities: Gold and other commodities often serve as inflation hedges.
Important Considerations
- Inflation varies by category: Healthcare, education, and housing often inflate faster than the average.
- Personal inflation rate: Your actual inflation depends on what you spend money on.
- Wage growth matters: If wages grow faster than inflation, you’re gaining purchasing power.
- Deflation risk: Rarely, prices can fall—this brings its own economic challenges.
- Future uncertainty: Past inflation rates don’t guarantee future rates.