This site has been revised to provide inflation conversion factors for 2015 using final inflation data, and for 2016, using estimates from early 2016 by the Office of Management and Budget (OMB), and Congressional Budget Office (CBO).
Tables for 1774 to estimated 2026 and the conversion factor tables for 2015, and estimated 2016 were revised May 12, 2016, for both pdf and Excel files.
Excel file with column-format conversion factors 1774 to estimated 2026 have been revised to reflect final 2015 CPI.
For ease of printing, the same conversion factors also are available in pdf format: Conversion factors 1774 to estimated 2026.
The above tables show conversion factors for CPI (1982-84 Dollars) and dollars of 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, estimated 2016, CPI-U-X1 (2015 dollars), and CPI-U-RS (an experimental measure, using 2015 dollars, and updated CPI-U-RS data from the Bureau of Labor Statistics). This file provides both conversion factors for each of those inflation measures and also inflation rates using CPI-U for years starting 1774, CPI-U-RS for years starting 1947, and CPI-U-X1 for years starting 1950. These files also show "chain-weighted" inflation data, a topic of recent interest.
Inflation assumptions: Inflation assumptions: Inflation conversion factors for 2016 and later years assume 2.10% inflation in 2016, 2.20% in 2017, and 2.35% in each year 2018 through 2026. These are averages of OMB and CBO inflation estimates as of January (CBO) and February (OMB) 2016. Note: The early 2015 average inflation estimate for 2015 by CBO and OMB was 1.25%. The final inflation rate was 0.1%.
Data prior to 1913 are estimates; data for 1913 to the present involve data from the Bureau of Labor Statistics, though the specific methods of data collection have changed during that period. Use special caution concerning data prior to 1913.
I strongly recommended that all dollar figures using these conversion factors for years prior to 1913 be rounded, e.g., $14,663 becomes $14,700, and preferably—especially for early years—to $15,000. Similarly, round dollars derived for years 1913 to the present to, for example, $14,660.
Stating dollar figure conversions in dollars and cents nearly always suggests more precision than the data allow.