Everyday financial tools
Inflation calculator
Explore future costs and the purchasing power of savings using your own annual inflation assumption and time period.
Your inputs
Your estimate
An editable scenario, not a current inflation report or prediction.
How this calculation works
Future cost = amount × (1 + inflation)^years. Future purchasing power of an unchanged amount = amount ÷ (1 + inflation)^years.
Method reviewed: November 2, 2026. Reference: Investor.gov: inflation ↗
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When to use this calculator
Compare two separate questions: what today’s basket might cost later, and what an unchanged sum might buy later. They are related but produce different numbers.
Choosing the inputs
Enter today’s amount, an annual inflation assumption and a period. The calculation compounds that constant rate. It does not fetch current national CPI, forecast policy or account for differences in your own spending basket.
Worked example
At 10% inflation for two years, today’s 1,000 basket costs 1,210. An unchanged 1,000 then has purchasing power equivalent to about 826.45 in today’s terms.
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