U.S. BLS CPI-U
United States · Monthly CPI
The all-items, U.S. city-average CPI-U series is the basis of our downloadable historical snapshot and three U.S. calculators.
Inflation tools that show the basis behind the number
Adjust dollars, compare real pay and test purchasing-power assumptions. Choose an observed historical index or an explicitly entered scenario.
Observed data, with an explicit gap
U.S. monthly CPI-U: January 1913–September 2026, 1,364 observations. October 2025 is unavailable. No interpolation, latest-month substitution or partial-year annual average.
Inspect the snapshot and download dataFind an official inflation source
ONS personal inflation calculator
United Kingdom · Personal basket
An official spending-based illustration for understanding why a household's inflation experience can differ from a UK headline rate.
Bank of England inflation calculator
United Kingdom · Historical calculator
An official historical buying-power illustration for pounds, with a documented mixture of modern CPI and earlier historical estimates.
Bank of Canada inflation calculator
Canada · Historical calculator
An official Canadian cost-comparison tool linked to Statistics Canada's monthly consumer-price data.
Reserve Bank of Australia inflation calculator
Australia · Historical calculator
An official Australian basket-cost comparison with calendar-year, financial-year and quarterly views.
ECB inflation and HICP resources
Euro area · Official data
Official explanations and data links for euro-area and national Harmonised Index of Consumer Prices measures.
Statistics Bureau of Japan CPI
Japan · Official data
Official monthly and historical CPI resources, with separate national and Tokyo coverage and explicit base-revision documentation.
Reserve Bank of New Zealand inflation calculator
New Zealand · Historical calculator
An official purchasing-power tool with general and selected category or other series; it explains historical denomination changes.
Compare up to three official sources
Read the calculation guides
Selected official references, not a ranking of inflation accuracy. The historical tools on this site contain U.S. CPI only. Country-specific references link to the official source; a currency selector in the scenario does not import that country’s CPI.