Free online calculator
Inflation Calculator
Estimate purchasing power changes over time using an annual inflation rate.
Quick Answer
How It Works
Future value = present value × (1 + inflation rate)^years.
- Enter current amount.
- Set annual inflation rate and number of years.
- Review inflation-adjusted future value.
Examples use USD-style formatting. Tax rates, fees, and legal rules vary by country and change over time — treat results as estimates and confirm important numbers with a qualified professional.
Interactive Calculator
Inflation-adjusted future cost: 134.39
Example Use Case
At 3% inflation, 100 today is about 134.39 after 10 years.
Detailed Guide
Inflation modeling helps translate nominal values into purchasing-power context over time.
Constant-rate assumptions are useful for planning but cannot capture real-world price volatility.
Using conservative and expected scenarios improves long-term financial robustness.
Pair inflation projections with savings and income planning for more realistic targets.
Assumptions and Limits
Assumes constant inflation and ignores volatility across categories.
Common Mistakes to Avoid
- Using monthly rates as annual rates.
- Ignoring compounding in long periods.
- Applying one inflation rate to all spending types.
FAQ
Can I use this calculator for free?
Yes. This tool is free and designed for practical day-to-day decisions.
Why might results differ from another website?
Differences usually come from rounding rules, assumptions, or region-specific formulas.
Is this suitable for legal or financial advice?
No. Treat outputs as guidance and validate with qualified professionals for final decisions.
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How we choose formulas and check results: Methodology · Last reviewed 2026-07-25