Utilities (fuel & water) · code 3600
City gas price in Japan
都市ガス代
Key facts
As of September 2026, city gas prices in Japan are up 0.1% year on year and up 14.7% over five years. The official consumer price index stands at 114.4 (2020 = 100), up 247.7% versus January 1970, when the series begins.
City gas sits in the utilities (fuel & water) group of Japan's CPI basket, with 681 monthly observations from January 1970 to September 2026. The series peaked at 144.9 in January 2023 and bottomed at 32.3 in April 1972; the latest reading is -21.0% against that peak. Against ten years ago it is +26.0%.
Latest CPI
114.4
2026-09 (2020=100)
YoY %
+0.1%
5y change %
+14.7%
Change since 1970-01
+247.7%
Annual average index by year
| Year | Index | YoY % | Months |
|---|---|---|---|
| 2015 | 111.3 | -3.6% | 12 |
| 2016 | 96.0 | -13.7% | 12 |
| 2017 | 95.9 | -0.1% | 12 |
| 2018 | 99.8 | +4.1% | 12 |
| 2019 | 103.6 | +3.8% | 12 |
| 2020 | 100.0 | -3.5% | 12 |
| 2021 | 97.9 | -2.1% | 12 |
| 2022 | 122.4 | +25.0% | 12 |
| 2023 | 118.5 | -3.2% | 12 |
| 2024 | 117.4 | -0.9% | 12 |
| 2025 | 119.6 | +1.9% | 12 |
| 2026 | 115.7 | -3.3% | 9 |
Average of the monthly index values in each year (2020 = 100). Blank months are excluded.
Frequently asked questions
- How much have city gas prices changed in Japan over the past year?
- As of September 2026, +0.1% year on year, measured by Japan's official consumer price index (2020 = 100).
- How much have city gas prices changed in Japan over the past five years?
- +14.7% compared with the same month five years earlier. The index now reads 114.4.
- When were city gas prices in Japan at their highest?
- The series peaked at 144.9 in January 2023. The latest reading is -21.0% 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).