Utilities (fuel & water) · code 3612
LP gas (propane) price in Japan
プロパンガス
Key facts
As of September 2026, lp gas (propane) prices in Japan are up 6.3% year on year and up 20.7% over five years. The official consumer price index stands at 123.4 (2020 = 100), up 546.1% versus January 1970, when the series begins.
LP gas (propane) 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 125.2 in August 2026 and bottomed at 19.1 in January 1970; the latest reading is -1.4% against that peak. Against ten years ago it is +30.0%.
Latest CPI
123.4
2026-09 (2020=100)
YoY %
+6.3%
5y change %
+20.7%
Change since 1970-01
+546.1%
Annual average index by year
| Year | Index | YoY % | Months |
|---|---|---|---|
| 2015 | 97.7 | -1.2% | 12 |
| 2016 | 95.4 | -2.4% | 12 |
| 2017 | 95.1 | -0.3% | 12 |
| 2018 | 96.8 | +1.8% | 12 |
| 2019 | 98.7 | +2.0% | 12 |
| 2020 | 100.0 | +1.3% | 12 |
| 2021 | 101.9 | +1.9% | 12 |
| 2022 | 110.4 | +8.3% | 12 |
| 2023 | 111.9 | +1.4% | 12 |
| 2024 | 113.9 | +1.8% | 12 |
| 2025 | 116.1 | +1.9% | 12 |
| 2026 | 119.6 | +3.0% | 9 |
Average of the monthly index values in each year (2020 = 100). Blank months are excluded.
Frequently asked questions
- How much have lp gas (propane) prices changed in Japan over the past year?
- As of September 2026, +6.3% year on year, measured by Japan's official consumer price index (2020 = 100).
- How much have lp gas (propane) prices changed in Japan over the past five years?
- +20.7% compared with the same month five years earlier. The index now reads 123.4.
- When were lp gas (propane) prices in Japan at their highest?
- The series peaked at 125.2 in August 2026. The latest reading is -1.4% 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).