Diapers (adult) price in Japan
Average retail price
- Cheapest surveyed city
- ¥905 Oita
- Priciest surveyed city
- ¥1,055 Tokushima
See all 47 cities, cheapest first
| # | City | Price (JPY) · per 10 sheets |
|---|---|---|
| 1 | Oita | ¥905 |
| 2 | Mito | ¥911 |
| 3 | Shizuoka | ¥914 |
| 4 | Yamaguchi | ¥915 |
| 5 | Aomori | ¥920 |
| 6 | Kagoshima | ¥920 |
| 7 | Osaka | ¥923 |
| 8 | Wakayama | ¥930 |
| 9 | Maebashi | ¥931 |
| 10 | Kofu | ¥937 |
| 11 | Saitama | ¥939 |
| 12 | Chiba | ¥940 |
| 13 | Tsu | ¥944 |
| 14 | Miyazaki | ¥944 |
| 15 | Nagasaki | ¥947 |
| 16 | Otsu | ¥949 |
| 17 | Okayama | ¥952 |
| 18 | Niigata | ¥954 |
| 19 | Toyama | ¥957 |
| 20 | Kyoto | ¥957 |
| 21 | Tokyo (23 wards) | ¥958 |
| 22 | Kumamoto | ¥962 |
| 23 | Kobe | ¥963 |
| 24 | Nagoya | ¥964 |
| 25 | Fukui | ¥967 |
| 26 | Tottori | ¥967 |
| 27 | Fukushima | ¥969 |
| 28 | Takamatsu | ¥971 |
| 29 | Matsuyama | ¥972 |
| 30 | Morioka | ¥973 |
| 31 | Naha | ¥974 |
| 32 | Nagano | ¥978 |
| 33 | Fukuoka | ¥981 |
| 34 | Utsunomiya | ¥982 |
| 35 | Kanazawa | ¥982 |
| 36 | Yokohama | ¥985 |
| 37 | Nara | ¥985 |
| 38 | Sendai | ¥989 |
| 39 | Akita | ¥990 |
| 40 | Yamagata | ¥997 |
| 41 | Hiroshima | ¥1,003 |
| 42 | Gifu | ¥1,005 |
| 43 | Kochi | ¥1,017 |
| 44 | Sapporo | ¥1,018 |
| 45 | Saga | ¥1,028 |
| 46 | Matsue | ¥1,044 |
| 47 | Tokushima | ¥1,055 |
Retail price survey conducted by the Statistics Bureau of Japan. This is a survey average, not a shop price — actual prices vary by store. 総務省統計局 小売物価統計調査 · Surveyed items and specifications
Key facts
Diapers (adult) costs ¥965 per 10 sheets in Japan as of September 2026 — the unweighted average of 47 surveyed cities, up 7.4% from a year earlier. Measured as an index, the official CPI for diapers (adult) reads 133.5 (2020 = 100) in September 2026, up 7.1% year on year and up 33.9% over five years.
Diapers (adult) sits in the medical care group of Japan's CPI basket, with 201 monthly observations from January 2010 to September 2026. The series peaked at 133.5 in September 2026 and bottomed at 91.8 in December 2015; the latest reading is at its highest recorded level. Against ten years ago it is +36.1%.
Annual average index by year
| Year | Index | YoY % | Months |
|---|---|---|---|
| 2015 | 96.4 | -0.2% | 12 |
| 2016 | 95.7 | -0.7% | 12 |
| 2017 | 98.5 | +2.9% | 12 |
| 2018 | 98.3 | -0.2% | 12 |
| 2019 | 98.6 | +0.3% | 12 |
| 2020 | 100.0 | +1.4% | 12 |
| 2021 | 99.8 | -0.2% | 12 |
| 2022 | 102.5 | +2.7% | 12 |
| 2023 | 119.0 | +16.1% | 12 |
| 2024 | 123.3 | +3.6% | 12 |
| 2025 | 124.6 | +1.1% | 12 |
| 2026 | 126.5 | +1.5% | 9 |
Average of the monthly index values in each year (2020 = 100). Blank months are excluded.
Average retail price by month
| 2026-09 | ¥965 |
|---|---|
| 2026-08 | ¥958 |
| 2026-07 | ¥953 |
| 2026-06 | ¥888 |
| 2026-05 | ¥892 |
| 2026-04 | ¥888 |
| 2026-03 | ¥889 |
| 2026-02 | ¥883 |
| 2026-01 | ¥894 |
| 2025-12 | ¥891 |
| 2025-11 | ¥894 |
| 2025-10 | ¥893 |
| 2025-09 | ¥899 |
Frequently asked questions
- How much does diapers (adult) cost in Japan?
- ¥965 per 10 sheets, as of September 2026 — the unweighted average of 47 surveyed cities in the government's retail price survey.
- Which Japanese city has the cheapest diapers (adult)?
- Among the surveyed cities in September 2026, Oita was cheapest at ¥905 and Tokushima the most expensive at ¥1,055.
- How much have diapers (adult) prices changed in Japan over the past year?
- As of September 2026, +7.1% year on year, measured by Japan's official consumer price index (2020 = 100).
- How much have diapers (adult) prices changed in Japan over the past five years?
- +33.9% compared with the same month five years earlier. The index now reads 133.5.
- When were diapers (adult) prices in Japan at their highest?
- Right now. The latest month, September 2026, is the highest reading in the series at 133.5 — a record high since the series began.
- What is the difference between the index and the yen price?
- This page carries two kinds of number. The index (2020 = 100) measures percentage change over time and is not a yen amount; the yen figure is an actual average retail price from the government's retail price survey. Source: 総務省統計局 消費者物価指数 (e-Stat table 0003427113, nationwide, monthly).