This table shows the Monthly All-Items Consumer Price Index (CPI-U) and Annual Inflation Rates for the United States in 1918. You can find upcoming CPI release dates on our schedule page. These numbers are released by the Bureau of Labor Statistics.
| Month | CPI | Monthly Inflation Rate (%) | Yearly Inflation Rate (%) |
|---|---|---|---|
| January | 14.0 | 2.2 % | 19.7 % |
| February | 14.1 | 0.7 % | 17.5 % |
| March | 14.0 | -0.7 % | 16.7 % |
| April | 14.2 | 1.4 % | 12.7 % |
| May | 14.5 | 2.1 % | 13.3 % |
| June | 14.7 | 1.4 % | 13.1 % |
| July | 15.1 | 2.7 % | 18.0 % |
| August | 15.4 | 2.0 % | 18.5 % |
| September | 15.7 | 1.9 % | 18.0 % |
| October | 16.0 | 1.9 % | 18.5 % |
| November | 16.3 | 1.9 % | 20.7 % |
| December | 16.5 | 1.2 % | 20.4 % |
| Annual | 15.1 | 1.56 % | 18.0 % |
How did we come up with these Inflation rates for 1918?
We use the monthly Consumer Price Index (CPI) data published by the Bureau of Labor Statistics to calculate 1918 Inflation rates. The formula is as follows:
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