Calculate how inflation affects the value of money over time. Enter any amount and see its equivalent future value and purchasing power loss year by year.
enter amount and years
Amount ($)
From year
To year
Annual inflation rate (%)
Future Value
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Purchasing Power
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Inflation Impact
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Full breakdown (click to copy)
Decision Support
Use this to set a real, adjusted goal
If you're saving toward a future cost (retirement, a home, tuition), the Future Value figure is what you'll actually need — not today's price tag.
Compare Purchasing Power against your investment returns
If your savings are earning less than the inflation rate, their real purchasing power is shrinking even as the balance grows — check this against the Compound Interest Calculator.
A gain (not a loss) means deflation, not a bonus
If Inflation Impact is negative (a gain in purchasing power), you've modeled a deflationary scenario — historically rare and usually associated with broader economic trouble, not a sign to expect this normally.
Enter the amount — the dollar value you want to adjust for inflation.
Set the start year — the year the amount is in 'today's dollars.'
Set the end year — the future year you want to project to, or a past year to see historical purchasing power.
Enter inflation rate — use 3.5% for US historical average, 2% for central bank targets, or your country's actual rate.
Review results — see the inflation-adjusted value and the year-by-year purchasing power erosion table.
💸 Real impact of inflation: At 3.5% annual inflation, $100,000 today has the purchasing power of only $70,892 in 10 years. In 20 years: $50,257. In 30 years: $35,628. This is why keeping large amounts in low-interest savings accounts is a guaranteed way to lose real purchasing power over time.
Understanding Inflation
📊 What Causes Inflation?
Too much money chasing too few goods. Primary causes: excessive money supply growth (central bank printing), supply chain disruptions, demand surges, energy price increases, wage growth exceeding productivity, and import price inflation from currency weakness.
📉 Purchasing Power
Inflation reduces what each dollar can buy. At 3% inflation: $1,000 of groceries today costs $1,344 in 10 years. Your salary must increase by at least the inflation rate just to maintain the same standard of living — any raise below inflation is effectively a pay cut.
🏦 Central Bank Targets
Most central banks target 2% annual inflation as the ideal rate: low enough to preserve purchasing power, high enough to encourage spending over hoarding and provide a buffer against deflation. The US Fed, ECB, Bank of England, and most major central banks use 2% as their target.
📈 Inflation and Investments
Investments must outpace inflation to generate real returns. A savings account at 2% with 3% inflation produces a -1% real return. Equities historically return 7–10% nominally, or 4–7% in real (inflation-adjusted) terms. Real estate and commodities often serve as inflation hedges.
🌍 Hyperinflation
When inflation exceeds 50% monthly, purchasing power collapses rapidly. Historical examples: Zimbabwe (2008: 89.7 sextillion % annually), Venezuela (2018: 1,000,000%+), Weimar Germany (1923). Hyperinflation destroys savings, disrupts commerce, and causes social instability.
📊 Deflation Risk
Falling prices sound beneficial but sustained deflation causes consumers to delay purchases (waiting for lower prices), reduces business revenue and employment, and can trigger economic depression. This is why central banks target 2% inflation rather than 0%.
Protecting Against Inflation
Inflation-beating investments
Historically reliable inflation hedges: equities (companies raise prices with inflation, protecting real earnings), real estate (rental income and property values tend to rise with inflation), commodities including gold (real assets maintain value), TIPS (Treasury Inflation-Protected Securities — principal adjusts with CPI), and I-bonds (US government bonds with inflation-linked interest). Cash and fixed-rate bonds are the worst inflation performers — they guarantee real purchasing power loss at positive inflation rates.
Salary negotiation and inflation
In annual salary reviews, the baseline for any negotiation should be the current inflation rate. A 3% raise in a 4% inflation environment is a 1% real pay cut. Negotiate for at least CPI + your contribution premium. Over a 10-year career, accepting inflation-only raises versus negotiating aggressively for merit raises can result in $200,000–$500,000 in cumulative lifetime earnings difference.
Inflation in retirement planning
Inflation is the biggest risk in retirement planning. A retirement budget of $5,000/month at age 65 requires $6,720/month at age 75 and $9,031/month at age 85 just to maintain the same lifestyle (at 3% inflation). Retirement portfolios must be invested to generate returns above inflation, not just preserve nominal capital.
💡 Inflation rule of thumb: The Rule of 70 — divide 70 by the inflation rate to find how many years it takes for prices to double. At 3.5%: 70÷3.5 = 20 years to double. At 7%: 10 years to double. This simple calculation reveals why inflation that seems small annually has dramatic long-term effects on purchasing power and retirement planning.
Inflation Formula
Future Value = Amount × (1 + rate)^years, the same compound-growth formula used for investment returns, applied here to rising prices instead of growing money.
Worked example
$10,000 in 2015, 3.5% average annual inflation, projected to 2026 (11 years): Future Value = 10,000 × (1.035)^11 = $14,599.70. In other words, you'd need $14,599.70 in 2026 to buy what $10,000 bought in 2015 — a purchasing power loss of $4,599.70.
Assumption: uses a single constant average rate — real inflation varies year to year, and different categories of spending (housing, healthcare, energy) often inflate at different rates than the general CPI figure.
Common Mistakes
Ignoring inflation in long-term goals
A savings target set in today's dollars without adjusting for inflation will fall short by the time you actually need the money — always plan in future, inflation-adjusted dollars for goals more than a few years out.
Using one national average for everything
Healthcare and education have historically inflated faster than the general CPI — a single average rate can understate the real future cost of specific categories.
Comparing nominal returns to inflation incorrectly
A 4% investment return in a 3.5% inflation environment is only a 0.5% real gain, not 4% — always compare returns to inflation to understand actual purchasing-power growth.
Assuming deflation is good news
Falling prices sound beneficial but sustained deflation historically correlates with reduced business revenue, employment, and economic contraction — it isn't simply the opposite of inflation in a good way.
Frequently Asked Questions
What is inflation?
Inflation is the rate at which the general level of prices rises over time, reducing purchasing power. At 3% annual inflation, something costing $100 today costs $103 next year and $134 in 10 years.
What is the average inflation rate?
US historical average: ~3.5%/year. UK: ~3%/year. India: ~5-6%/year. Pakistan: higher in recent years. Central banks (like the US Fed) target 2% inflation as the ideal for economic growth.
Why does inflation matter for savings?
If your savings earn less than inflation, you're losing real purchasing power. A savings account at 2% when inflation is 4% means your money loses 2% of real value annually. This is why investing in assets that outpace inflation is important.
References
🏛️ U.S. Bureau of Labor Statistics
Official Consumer Price Index (CPI) data — bls.gov/cpi