I heard gas is over 190 yen per liter. Why has it gotten so expensive?
Great question. Oil prices have been rising globally, and that is directly pushing up the price of gasoline. Let's walk through it step by step.
This article is based on information available as of March 2026.
Gasoline prices in Japan have hit record highs. This affects not just drivers but also electricity bills and food prices. In this article, we look at how rising oil prices impact daily life in Japan, with specific data points.
Why Gasoline Prices Have Risen So Much
How fast did prices go up?
The numbers are striking — prices jumped more than 30 yen per liter in just over two weeks.
Here is how the national average price of regular gasoline changed:
- March 2: 158.5 yen/L
- March 9: 161.8 yen/L
- March 18: 190.80 yen/L (all-time record high)
In just 16 days from March 2 to March 18, the price rose by approximately 32 yen per liter.
Behind this surge is the rise in international oil prices. Brent crude went from approximately $71 before the conflict to a peak of $120.
Why did oil prices spike so much?
The Strait of Hormuz, a critical waterway for oil tankers, was blocked. About 93% of the oil Japan imports passes through this strait.
The Strait of Hormuz is the only sea route from the Persian Gulf to the Indian Ocean. When this strait is disrupted, oil shipments from Middle Eastern producers to Japan and the rest of Asia are severely constrained. With supply dropping while demand stays the same, prices tend to rise.
How Rising Oil Affects Daily Life
I get that gas is expensive, but does it matter if you don't drive?
It actually matters a lot. Oil prices are connected to electricity bills and food prices too.
Rising oil prices tend to ripple across many aspects of daily life. Here is a summary of the main areas affected:
| Area | How It Is Affected | Data |
|---|---|---|
| Gasoline | Prices rise directly | 190.80 yen/L (Mar 18, record high) |
| Electricity | Higher fuel costs for thermal power | TEPCO model household: ~7,464 yen/month |
| Food | Higher transportation and packaging costs | CPI food: +4.0% YoY (February) |
So electricity and food are affected too. How does that work exactly?
Let's go through each one.
Gasoline
Gasoline is the area where oil price changes show up fastest. When crude oil rises, it tends to be reflected at the pump within days to weeks.
As of March 18, 2026, the national average for regular gasoline reached 190.80 yen/L — an all-time high. Without government subsidies, the price would have been even higher (more on this below).
Electricity
A significant portion of Japan's electricity comes from thermal power plants that burn LNG (liquefied natural gas) and oil. When oil prices go up, fuel costs for these plants tend to rise, which is eventually passed on to electricity bills.
From January through March 2026, the government provided an electricity subsidy of 4.5 yen/kWh. Under this subsidy, TEPCO's model household bill was approximately 7,464 yen per month.
Food
Food prices tend to reflect oil costs with a delay. Generally, it takes about 3 to 6 months for higher oil prices to work their way into consumer goods through increased transportation and packaging costs.
Looking at the Consumer Price Index (CPI) for February 2026, overall prices rose 1.3% year-over-year, but food prices specifically rose 4.0%. Rice prices were up 17.1% year-over-year, though factors beyond oil also contributed to the rice price increase.
Food up 4.0% is quite a lot compared to the overall 1.3%.
Exactly. Food costs are rising much faster than overall prices, which means grocery bills are feeling a disproportionate impact.
Why Japan Is Especially Vulnerable
Why is Japan so affected when oil prices rise?
It comes down to one thing: Japan imports almost all of its oil from abroad.
Japan is well known for having very limited domestic energy resources. The country's oil import dependency is 99.7% — virtually none is produced domestically.
What makes the situation more acute is the concentration of supply sources:
- Approximately 95% of Japan's oil imports come from the Middle East
- About 93% of those imports transit through the Strait of Hormuz
93% through one strait? That's almost everything.
Right. That is why any disruption to the Strait of Hormuz tends to have a major impact on Japan's energy supply.
In other words, Japan's oil supply routes are heavily concentrated in the Middle East and the Strait of Hormuz, making the country structurally vulnerable to instability in that region.
Government Response: The Gasoline Subsidy
Is the government doing anything about this?
Yes. There is a gasoline subsidy program designed to keep prices from rising too fast.
Since January 2022, the Japanese government has operated a subsidy program to cushion gasoline price spikes. The subsidies are paid to wholesale oil distributors, which in turn keeps retail prices lower.
Here is the current status as of March 2026:
| Item | Details |
|---|---|
| Subsidy amount | 48.10 yen/L (highest since program started) |
| Target price | 170 yen/L |
| Average price after subsidy | 177.70 yen/L |
| Program start | January 2022 |
A 48 yen subsidy per liter — so without it, prices would be way higher.
That's right. Without the subsidy, a simple calculation suggests the price could have exceeded 225 yen per liter. This is the largest subsidy amount since the program began.
Even with the subsidy, the average price stands at 177.70 yen/L, which is above the government's 170 yen target. The subsidy program is designed to soften the blow, not eliminate price increases entirely.
Additionally, an electricity subsidy of 4.5 yen/kWh has been in effect from January through March 2026.
Summary
- On March 18, 2026, Japan's national average gasoline price hit 190.80 yen/L, an all-time record.
- Oil price increases are reflected in gasoline almost immediately, while effects on electricity and food prices tend to take 3 to 6 months to appear.
- Japan imports 99.7% of its oil, with approximately 93% transiting the Strait of Hormuz, making the country structurally vulnerable to Middle Eastern instability.
- The government's gasoline subsidy reached 48.10 yen/L (a program high), but the average price still exceeds the 170 yen target.
- February 2026 CPI showed overall inflation of 1.3% year-over-year, but food prices rose 4.0%, indicating a disproportionate impact on household budgets.
This article is based on information available as of March 2026.
Disclaimer: This article is intended for general informational and educational purposes regarding stock investing and does not constitute a recommendation to buy or sell any specific securities. All investment decisions should be made at your own responsibility.