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Inflation Calculator – Value of Money

Quick answer

Future cost = today × (1 + rate)^years.

  • $50,000 at 3% for 10 years ≈ $67,200.
  • See real purchasing power.

Figures are estimates from this calculator’s standard formula — adjust the inputs in the tool below for your exact number.

How Inflation Calculation Works

Future Value = Present Value × (1 + Inflation Rate)^Years

Inflation erodes purchasing power over time. The calculator shows how much more you'll need in the future to buy what a certain amount buys today. Conversely, it shows how much less your current savings will be worth in real terms. Worked example: at 3% average inflation, a $50,000 lifestyle costs 50,000 × 1.03^10 ≈ $67,200 in 2036. Equivalently, $50,000 held as cash for 10 years loses about $12,900 of purchasing power — the reason cash loses to invested assets.

  1. 1

    Step 1

    Enter the current value or amount of money

  2. 2

    Step 2

    Input the expected annual inflation rate

  3. 3

    Step 3

    Specify the time period in years

  4. 4

    Step 4

    Calculator compounds inflation over the period

  5. 5

    Step 5

    Result shows future equivalent value and purchasing power loss

Use Cases

Retirement Planning

Calculate how much you'll need in retirement to maintain current lifestyle, accounting for inflation over 20-30 years.

Investment Returns

Calculate real returns by subtracting inflation from nominal investment gains to understand true wealth growth.

Salary Negotiations

Determine the raise needed to maintain purchasing power or the real value of salary increases over time.

Long-Term Contracts

Price long-term contracts and agreements accounting for expected cost increases due to inflation.

Tips

  • 1

    Historical US inflation averages about 3% annually; plan for 2-4% in projections

  • 2

    Rule of 72: divide 72 by inflation rate to see years for prices to double

  • 3

    Real return = nominal return - inflation rate (approximation)

  • 4

    High inflation periods (1970s-80s) saw 10%+ rates; low periods under 2%

  • 5

    Consider healthcare and education inflation rates, which exceed general inflation

Common Mistakes

  • Using Short-Term Rates for Long-Term Planning

  • Ignoring Inflation Entirely

  • Not Considering Sector-Specific Inflation

  • Confusing Nominal and Real Values

FAQs

What is a realistic inflation rate to use?

For long-term planning, 2.5-3% is reasonable based on historical averages. Central banks typically target 2%. Adjust based on current economic conditions.

How does inflation affect my savings?

If your savings earn less than inflation, you're losing purchasing power. $10,000 at 1% interest with 3% inflation loses real value each year.

What is the Rule of 72 for inflation?

Divide 72 by the inflation rate to see how many years until prices double. At 3% inflation: 72/3 = 24 years for prices to double.

Should I invest differently based on inflation?

Yes. During high inflation, consider TIPS, I-bonds, real estate, commodities, and stocks. Cash and fixed bonds lose value in high inflation.

What is deflation and how is it different?

Deflation is negative inflation - prices decrease over time. Rare but harmful to economies. Your money gains purchasing power but economic activity slows.