Inflation
Inflation Calculator
What will an amount be worth in the future (or have cost in the past) at a given average inflation rate?
Future cost = amount × (1 + inflation)ⁿ
Also called inflation adjusted value · value of money over time
Personal Finance · 10 calculators
Inflation Calculators
Measure inflation, purchasing power, future and past value of money, real interest rates and cost of living.
Inflation
Inflation Rate Calculator
Calculate the inflation rate between two CPI values or prices, and the average annual rate over several years.
Inflation = (CPI₂ − CPI₁) / CPI₁
Also called cpi inflation · calculate inflation rate
Inflation
Purchasing Power Calculator
How much buying power your money loses to inflation over time — and what it will buy in today’s terms.
Real value = amount ÷ (1 + inflation)ⁿ
Also called loss of purchasing power · money value erosion
Inflation
Future Cost Calculator
Estimate the future price of education, a house, a car or any goal after years of inflation.
Future cost = cost × (1 + g)ⁿ
Also called future price · cost in future
Inflation
Past Value Calculator
What a present amount would have been worth in an earlier year, deflated by average inflation.
Past value = amount ÷ (1 + i)ⁿ
Also called historical value of money · deflate price
Inflation
Inflation-Adjusted Salary Calculator
Has your salary kept up with inflation? Compare a raise with inflation to find your real pay change.
Real change = (new ÷ (old × (1 + inflatio…
Also called real salary · salary vs inflation
Inflation
Real Return Calculator
Inflation-adjusted (real) rate of return from a nominal return and inflation, using the exact Fisher equation.
(1 + real) = (1 + nominal) / (1 + inflati…
Also called inflation adjusted return · real rate of return
Inflation
Price Increase Calculator
Apply a percentage price increase to one or many prices, or find the percent increase between an old and new price.
New = old × (1 + p/100)
Also called price rise · raise prices by percent
Inflation
Cost of Living Calculator
Salary needed to keep the same lifestyle when moving between cities, using cost-of-living index values you enter.
Salary₂ = salary₁ × index₂ / index₁
Also called cost of living comparison · salary for new city
Inflation
Real Interest Rate Calculator
Real interest rate from nominal interest and inflation using the Fisher equation — exact and approximate.
1 + r = (1 + i) / (1 + π)
Also called fisher effect · real rate
Key inflation formulas
| Inflation | Future cost = amount × (1 + inflation)ⁿ |
|---|---|
| Inflation Rate | Inflation = (CPI₂ − CPI₁) / CPI₁ |
| Purchasing Power | Real value = amount ÷ (1 + inflation)ⁿ |
| Future Cost | Future cost = cost × (1 + g)ⁿ |
| Past Value | Past value = amount ÷ (1 + i)ⁿ |
| Inflation-Adjusted Salary | Real change = (new ÷ (old × (1 + inflation))) − 1 |
| Real Return | (1 + real) = (1 + nominal) / (1 + inflation) |
| Price Increase | New = old × (1 + p/100) |
| Cost of Living | Salary₂ = salary₁ × index₂ / index₁ |
| Real Interest Rate | 1 + r = (1 + i) / (1 + π) |