Utilities (fuel & water) · code 3612
LP gas (propane)
プロパンガス
Key facts
As of August 2026, lp gas (propane) prices in Japan are up 7.0% year on year and up 23.2% over five years. The official consumer price index stands at 125.2 (2020 = 100), up 555.5% versus January 1970, when the series begins.
LP gas (propane) sits in the utilities (fuel & water) group of Japan's CPI basket, with 680 monthly observations from January 1970 to August 2026. The series peaked at 125.2 in August 2026 and bottomed at 19.1 in January 1970; the latest reading is at its highest recorded level. Against ten years ago it is +31.9%.
Latest CPI
125.2
2026-08 (2020=100)
YoY %
+7.0%
5y change %
+23.2%
Change since 1970-01
+555.5%
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 | 119.2 | +2.7% | 8 |
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 August 2026, +7.0% 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?
- +23.2% compared with the same month five years earlier. The index now reads 125.2.
- When were lp gas (propane) prices in Japan at their highest?
- Right now. The latest month, August 2026, is the highest reading in the series at 125.2 — 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).