Individual Year Conversion Factor Tables
Effective April 11, 2014, inflation conversion factor tables for all years 1995 to estimated 2014 reflect final 2013 CPI and estimated 2014 CPI. They show estimated inflation and price levels for 2014 through 2024, based on the average of inflation estimates by the Office of Management and Budget (OMB) as of March 2014 and the Congressional Budget Office (CBO) as of January 2014. The 2013 and 2014 conversion factors were revised January 20, 2014 to reflect final 2013 CPI. For 2013 and other conversion factors, estimates for 2013 through 2024 were revised April 8, 2014, after updated OMB and CBO inflation estimates became available. Conversion factors for 2011 and earlier years were revised May 8, 2013; estimated conversion factors for 2013 through 2023 in those tables reflects OMB and CBO inflation estimates as of early 2013.
The CPI for 2013 was 232.957 (in dollars of 182-1984, the curent base period for the CPI), shown as 2.32957 for ease of arithmetic calculation. The CPI for 2012 was 229.594, shown as 2.29594. The CPI for 2011 was 224.939, presented as 2.24939.
Inflation assumptions: Inflation conversion factors for 2014 and later years assume 1.65% inflation in 2014, 2.00% in 2015, 2.10% in 2016, 2.20% in 2017, and 2.35% in each year 2018 through 2024. These are averages of OMB and CBO inflation estimates as of January (CBO) and March (OMB) 2014.
Conversion factor tables are available as Portable Document Format (pdf) files and also in Excel format, for direct use in conversion. The tables of conversion factors below cover the period 1774 to estimated 2021.
Early-year estimates of price-level changes (inflation) often diverge from the final inflation measure for the year. For example, the early 2011 inflation estimate for 2011 was 1.6 percent, based on the average of CBO and OMB inflation estimates. This average was used to produce conversion factors for estimated 2011. Actual inflation in 2011 (CPI-U) was 3.2 percent. As noted in the Differences between early-year and final inflation estimates for recent years section, final conversion factors in recent years have differed significantly from estimated conversion factors early in the year.)
- Conversion Factors in 2013 Dollars, Using CPI-U-X1 for 1950 to estimated 2024 (CPI-U-X1 applies the post-1982 CPI to the period 1950 to 1982), with comparisons of inflation 1950 to 1982 using CPI-U and CPI-U-X1 measures pdf Excel
- Conversion Factors in 2013 Dollars, using CPI-U-RS for 1947 to 2013 (CPI-U-RS is “Research Series,” with 1977 = 100, extended to 1947 by the Census Bureau), re-based here to 2013 = 1.000. Note that unlike other CPI measures, the CPI-U-RS data can be revised each year for earlier years, not just for the most recent year. For that reason, no estimated CPI-U-RS conversion factors are supplied for any year after 2013. pdf Excel
- Conversion Factors in 2013 Dollars, Using both CPI-U-X1 and CPI-U-RS for 1947 to estimated 2024 (this combines the previous two tables, but omits inflation comparison 1950-1982; also the CPI-U-RS conversion factors are included only through 2013, for reasons stated immediately above) pdf Excel
- Conversion Factors in CPI dollars (1982-84), the CPI base period, for 1774 to estimated 2024 pdf Excel
Original data for the CPI-U-RS are available from the Bureau of Labor Statistics
Reminder: Conversion factors for years prior to 1913 should be considered to be estimates. In addition, CPI measures have changed over time, so data for the entire period are not precisely comparable. Note that conversion factors that apply the post-1982 CPI to the period 1950 to 1982 are available above as the CPI-U-X1, in 2013 dollars.
From the main Bureau of Labor Statistics CPI page, many data are available, including a complete table of monthly CPI-U data with semi-annual and annual changes from 1913 to the present.