Inflation Tracker presents the monthly consumer price index of Japan in a compact, multilingual form, together with OECD inflation rates for comparison.

It is an independent site and not affiliated with the Statistics Bureau of Japan or the OECD.

Source: “Consumer Price Index” (Statistics Bureau of Japan), https://www.stat.go.jp/data/cpi/1.html — processed by vallis.info (PDL1.0).

OECD (2026), Prices: consumer price indices (dataset), OECD Data Explorer.

How this site works

Once a day an automated job downloads the latest public data from the sources listed below, checks it and rebuilds these static pages. Nothing is invented or estimated by us: every number comes from a cited source.

Data sources

• Statistics Bureau of Japan — Consumer Price Index — Public Data License 1.0 (PDL1.0), compatible with CC BY 4.0
• Statistics Bureau of Japan — website terms
• OECD — Prices: consumer price indices (Data Explorer) — OECD Terms and Conditions: reuse incl. commercial with attribution
• OECD — Terms and Conditions

Languages

The interface is available in 14 languages and was translated by hand. Where free text from a source is translated, it is done by offline machine translation and labelled as such.

Independence

Independent site, not affiliated with the data providers named here. For information only. Figures are reproduced from the cited sources, may be delayed or contain errors, and are not advice of any kind. Always check the original source.

Using the data

Please follow each source's own terms when reusing the data and credit the original publisher.

Affiliate links

Some Japanese pages include Rakuten Affiliate and (when enabled) Amazon Associates search links. They are separate from the price data on this site and do not show store prices. See the privacy policy for details.

As an Amazon Associate I earn from qualifying purchases.

Image credits

The header illustration is original artwork made for this site.