What a typical bill costs by household size and the per-kWh rate by region, in English — then estimate your own on your region's standard plan (従量電灯) and see what switching typically saves.
The average monthly electricity bill in Japan (2025): ¥7,337 for a single-person household and ¥13,219 for households of two or more, per the government's Family Income and Expenditure Survey (家計調査, 2025 average). Your own bill depends mostly on your region's per-kWh rate and how much you use — both of which the calculator below applies. For reference, the standard per-kWh usage rate ranges from roughly ¥18–21 in the cheapest regions (Kyushu, Kansai, Chubu) to ¥30–40+ in Hokkaido, Chugoku, and Okinawa.
I know my kWh
I only know my ¥ bill
Estimate by household
kWh / month
¥ / month (we reverse-estimate your kWh)
Bill mode estimates kWh from your region's standard tariff, ignoring the monthly 燃料費調整額, so your real kWh may differ a little.
Household figures are typical illustrative ranges, not exact — adjust the kWh directly for accuracy.
Estimated annual cost ·
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Line (monthly)
Amount
Not included: 燃料費調整額 (fuel cost adjustment). This per-kWh surcharge/discount changes every month with global fuel prices and can be positive or negative, so including a fixed figure would be false precision. Your real bill will move up or down with it. See the bill explained.
What switching could save
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A typical range only — actual savings depend entirely on your usage profile and the plan you pick; heavier users tend to save more. The renewable levy (再エネ賦課金) never changes, whoever you switch to.
Switching options
Two ways foreign residents usually go about it:
An English-friendly supplier. A few newer suppliers run an English signup flow — no construction, no outage, same grid. Worth it if reading Japanese sign-up forms is the blocker.
Compare everything at once. A comparison portal ranks plans across suppliers for your usage, so you're not signing up blind.
Estimates use each region's standard 従量電灯 tariff (2025–2026, tax-included), assume steady monthly usage, and exclude 燃料費調整額. Confirm your own plan and rates with your provider.