Real Return Calculator: Adjust a Value Change for Inflation
Adjust an investment value change for observed U.S. CPI inflation under an explicit no-cashflow assumption. Export the inputs and results.
This tool uses a frozen monthly U.S. CPI snapshot through September 2026. October 2025 is unavailable. Amounts are USD, with no FX conversion. Only valid as an endpoint real-value change when there are no intervening deposits, withdrawals or distributions.
Calculation inputs
Result and calculation basis
Original amount adjusted along observed CPI months
This is the CPI-adjusted original amount, not a wage or investment performance path. Missing observations create a break. The vertical axis is cropped to the observed range; use the table for exact displayed values.
Inspect all periods and monetary values
Export or restore a calculation
Print includes summary, chart and assumptions. Open the period table before printing to include every row. The JSON restores inputs and recomputes with the same snapshot; no saved result total is trusted.