Do you want to use global World Bank data or U.S.-only Federal Reserve data?
What's the salary/wage/price at the starting time? What's the currency and country?
What two months do you want to calculate the inflation difference between?
Published by Christopher as an international inflation calculator across months. Salary Inflation Calcultor enabled inflation adjustment in local currencies around the world with over 80 countries having provided at least partial data since 1970. Data updated shortly as sources update and publish data on their own schedule. The World Bank Inflation Database is updated twice a year. The United States Bureau of Labor Statistics dataset is updated every month. Designed to be easy to use, descriptive and thoughtful feedback is always appreciated.
Controlled from the top-down, the site is designed to start with a selection of the data source and then currency. Available months are filtered to show only data for that country associated with the selected currency.
Data provided by the U.S. Bureau of Labor Statistics (BLS) and the World Bank. Results computed from the U.S. BLS CPI for All Urban Consumers (CPI-U) 1967=100 (Unadjusted) - CUUR0000AA0 (1913-present) dataset and World Bank's global database of inflation (1970-2022).
The two datasets offered different but close inflation numbers for the United States over the same time period. The United States BLS dataset offered data across a longer period of time (1913-2022). The completeness of World Bank data changed over time as more countries adopted inflation data collection and provided it to the World Bank.