Inflation Calculator

Estimate inflation with transparent assumptions.

Choose an inflation modelUse embedded official U.S. CPI-U monthly data or flat-rate forward/backward conversion.

3 options

Amount

year

Starting month

1–12

Target

year

Target month

1–12

INFLATION-ADJUSTED AMOUNT$198.53

Inflation Calculator with U.S. CPI Data result; BLS CPI-U changed from 168.800 (2000-01) to 335.123 (2026-05); cumulative price change: 98.53%.

Estimate based on the values shown

Formula checkedHistorical mode uses embedded BLS CPI-U All Items, U.S. city average, not seasonally adjusted monthly observations (CUUR0000SA0); flat-rate modes compound forward or backward. The benchmark's MV = PY quantity identity is educational context, not an input to CPI or flat-rate conversion.

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