Inflation is the annual rate at which prices rise — eroding your purchasing power. At 3% inflation, the $100 in your pocket today is worth $97 in purchasing power next year. An investment earning 8% nominal return but losing 3% to inflation yields only 4.85% real return. This calculator separates real vs. nominal returns, shows how inflation compounds over 30 years, and identifies which assets actually hedge inflation risk (stocks, real estate, commodities) vs. which lose to it (cash, bonds).
Inflation Calculator
Calculate how inflation erodes your purchasing power. Compare real vs. nominal returns and model inflation hedging strategies.
How Real Returns Are Calculated
Inflation erodes purchasing power over time. Nominal return is the stated investment return (8% stock market); real return subtracts inflation to show true purchasing power growth. Cash earning 0% in a 3% inflation environment actually loses 3% in real terms.
| Return Type | Definition | Example |
|---|---|---|
| Inflation | Annual price increase rate | 3.2% (April 2026) |
| Nominal | Stated investment return | 8% stock market |
| Real | Nominal minus inflation | 4.85% (true purchasing power gain) |
Example: You save $10,000 earning 0% (under the mattress). In 20 years at 3% inflation, that $10,000 is worth only $5,505 in purchasing power. Meanwhile, $10,000 in stocks earning 8% becomes $46,610 nominally, or $25,654 in real terms (after inflation). Inflation is wealth destruction through inaction.
⚠️ Expert Pro-Tip
Real Returns Determine Wealth — Nominal Returns Fool You: Your investments returned 7% this year (nominal), and you celebrated. But inflation was 4.5%, so your real return was 2.38%. Your wealth grew less than salary increases for new hires. Over 30 years, this compounds: 7% nominal at 4% inflation becomes 2.9% real — only 2.9x wealth growth instead of 7.6x. Always calculate real returns when measuring success. Stocks historically beat inflation by 5–7 percentage points; bonds barely keep pace; cash loses every year.
Inflation FAQ
What's the current inflation rate in 2026?
As of April 2026, the Consumer Price Index (CPI) shows ~3.2% year-over-year inflation. This is down from 9.1% in 2022 (peak) but still above the Federal Reserve's 2% target. Inflation varies by category: energy (3%), food (2.8%), housing (4.1%), healthcare (3.5%). What matters: how inflation affects YOUR costs, not the aggregate number. If you're retired on fixed income, 3% inflation is painful. If your salary grows 5%, you're winning.
How do I hedge against inflation?
(1) Stocks: Historical average return 10% beats 3% inflation. (2) Real estate: Rents and property values rise with inflation. (3) Commodities (gold, oil): Prices track inflation closely. (4) I Bonds: Government savings bonds pay inflation rate + fixed rate (2.5% + inflation in 2026). (5) TIPS: Treasury Inflation-Protected Securities adjust principal by inflation. (6) Salary growth: Highest hedge — negotiate raises that beat inflation rate. Avoid holding cash for more than 1 year; inflation destroys it.
What's the difference between real and nominal returns?
Nominal return is the headline number (8% stock returns). Real return subtracts inflation (8% nominal − 3% inflation = 4.85% real). Real matters because you care about purchasing power. A 7% return in a 7% inflation environment = 0% real return. You made no progress in wealth. Media reports nominal; your financial plan should use real returns to gauge success.
How does inflation affect retirement savings?
Significantly. If you're saving $50,000/year for 30 years and inflation averages 3%, you need 40% MORE wealth than you'd think at retirement. A $1.5M portfolio supporting $60k/year spending today will only support ~$35k/year in 30 years (in nominal dollars, but same purchasing power, adjusted by inflation). The 4% rule accounts for this via portfolio growth (7% returns beat 3% inflation), but you must ensure your portfolio beats inflation. Bonds at 4.5% yield barely beat 3% inflation; stocks at 10% returns crush it.
Will inflation stay at 3%, or go higher?
No one knows. Federal Reserve projections for 2026: 2.5–3.5% (near their 2% target). Risks: energy shocks, supply chain disruptions, geopolitical events can spike inflation to 5%+. Plan conservatively: assume 3–4% inflation for 30-year horizons. Use this calculator to stress-test scenarios (3% vs. 4% inflation). The difference compounds: $500k at 4% inflation over 20 years loses $184k in purchasing power vs. $500k at 3% inflation. One percentage point matters over decades.
Should I be worried about inflation if I own stocks?
No. Stocks are the best inflation hedge: companies raise prices with inflation, boosting earnings and stock prices. Historical data: stocks return 10% on average, inflation averages 3%, real return 6.8%. Bonds suffer: a 4% bond in 3% inflation = 0.97% real return. Cash is destroyed: 0% return in 3% inflation = -3% real. Own stocks for your 30-year horizon; don't time inflation.