Inflation Calculator

See how inflation erodes purchasing power and what your money will be worth in the future.

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Inflation Details

Amount ($)

Annual Inflation Rate (%)

US CPI average: ~3–4% (2020s), ~2% (2010s)

Years Into the Future

Inflation Impact After 20 Years

Today's Value of $10,000

$5,537

in 20 years (real purchasing power)

Future Cost of Today's $10,000

$18,061

needed to match today's buying power

Purchasing Power Lost

$4,463

% Loss

44.6%

To keep up with inflation, you'd need investments returning more than 3% annually. At 3% inflation, prices roughly double every 24.0 years (Rule of 72).

Purchasing Power Over Time

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