System bath unit
Average retail price
- Cheapest surveyed city
- ¥433,900 Matsue
- Priciest surveyed city
- ¥1,124,585 Kochi
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
System bath unit costs ¥749,976 per set in Japan as of August 2026 — the unweighted average of 43 surveyed cities, up 8.8% from a year earlier. Measured as an index, the official CPI for system bath unit reads 122.7 (2020 = 100) in August 2026, up 6.0% year on year and up 21.8% over five years.
System bath unit sits in the housing group of Japan's CPI basket, with 560 monthly observations from January 1980 to August 2026. The series peaked at 122.7 in July 2026 and bottomed at 81.4 in April 1980; the latest reading is 0.0% against that peak. Against ten years ago it is +24.1%.
Annual average index by year
| Year | Index | YoY % | Months |
|---|---|---|---|
| 2015 | 93.7 | -1.3% | 12 |
| 2016 | 98.4 | +5.0% | 12 |
| 2017 | 96.6 | -1.8% | 12 |
| 2018 | 95.0 | -1.7% | 12 |
| 2019 | 95.7 | +0.7% | 12 |
| 2020 | 100.0 | +4.5% | 12 |
| 2021 | 100.5 | +0.5% | 12 |
| 2022 | 104.2 | +3.7% | 12 |
| 2023 | 113.6 | +9.0% | 12 |
| 2024 | 114.1 | +0.4% | 12 |
| 2025 | 116.4 | +2.0% | 12 |
| 2026 | 121.5 | +4.4% | 8 |
Average of the monthly index values in each year (2020 = 100). Blank months are excluded.
Average retail price by month
| 2026-08 | ¥749,976 |
|---|---|
| 2026-07 | ¥768,085 |
| 2026-06 | ¥764,635 |
| 2026-05 | ¥755,142 |
| 2026-04 | ¥789,725 |
| 2026-03 | ¥742,683 |
| 2026-02 | ¥743,840 |
| 2026-01 | ¥742,673 |
| 2025-12 | ¥742,702 |
| 2025-11 | ¥742,702 |
| 2025-10 | ¥723,749 |
| 2025-09 | ¥720,870 |
| 2025-08 | ¥689,142 |
Frequently asked questions
- How much does system bath unit cost in Japan?
- ¥749,976 per set, as of August 2026 — the unweighted average of 43 surveyed cities in the government's retail price survey.
- Which Japanese city has the cheapest system bath unit?
- Among the surveyed cities in August 2026, Matsue was cheapest at ¥433,900 and Kochi the most expensive at ¥1,124,585.
- How much have system bath unit prices changed in Japan over the past year?
- As of August 2026, +6.0% year on year, measured by Japan's official consumer price index (2020 = 100).
- How much have system bath unit prices changed in Japan over the past five years?
- +21.8% compared with the same month five years earlier. The index now reads 122.7.
- When were system bath unit prices in Japan at their highest?
- The series peaked at 122.7 in July 2026. The latest reading is 0.0% against that peak.
- 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).