Inflation Calculator

Compare purchasing power between years — what a dollar in one year is worth in another.

All math runs in your browser — nothing is uploadedReviewed & updated: Methodology
Result breakdownToday's amount: 100 (55.4%); Inflation impact: 80.61 (44.6%)
Future value
$180.61
Amount today$100.00
Inflation impact$80.61
Past buying power today$55.37

How it works

Future value = past · (CPI_new / CPI_old). Or approximate: FV = P · (1 + i)^n.

Example

$100 in 2000 has roughly the buying power of $180 in 2024 (US CPI).

Frequently asked questions

Which inflation index is used?
Historical calculators typically use CPI-U (all urban consumers).
Is CPI the best measure?
It's the standard, though some people prefer chained-CPI or PCE.
What's a normal inflation rate?
Central banks target ~2%; the US long-run average is closer to 3%.
Does inflation apply to salaries?
Yes — a raise below inflation is a real pay cut.

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