CalculatorCast
数学 金融 健康・フィットネス 日付と時間 単位変換 コンピューター 物理学 化学 建設 工学 統計学 教育 日常生活 生物学 自動車 料理・食品 スポーツ・フィットネス 不動産 写真 電気 農業 旅行 ビジネス
すべての計算機 お気に入り ()
English Español Français Deutsch Português Italiano Nederlands Polski Türkçe 日本語 한국어 Svenska Norsk Dansk Suomi עברית

EV充電コスト計算機

EVを目標レベルまで充電するために必要なコストと電力量を見積もります。

はじめに

EV Charging Cost Calculator — Estimate the cost and energy needed to charge your EV to a target level. Enter Battery capacity (kWh), Current charge (%), Target charge (%), Electricity rate ($/kWh), Charger efficiency (0-1) to get an instant, accurate result.

計算式

Energy needed (kWh) = battery capacity × (target% − current%) / 100 / charger efficiency. Cost = energy needed × price per kWh.

ステップごとの説明

  1. Enter the Battery capacity (kWh).
  2. Enter the Current charge (%).
  3. Enter the Target charge (%).
  4. Enter the Electricity rate ($/kWh).
  5. Enter the Charger efficiency (0-1).
  6. Click Calculate to see your result instantly.

実例

Example: With Battery capacity (kWh) = 75, Current charge (%) = 20, Target charge (%) = 80, Electricity rate ($/kWh) = 0.15, Charger efficiency (0-1) = 0.9, the EV Charging Cost Calculator gives Kwh Needed: 50, Cost: 7.5.

よくある質問

Why divide by charger efficiency?
Not all electricity pulled from the wall reaches the battery — some is lost as heat during charging, so dividing by efficiency (e.g. 0.9 for 90%) gives the real energy you pay for.
Does this account for charging speed tiers (AC vs DC fast charging)?
No, it only needs the percentage gained and your electricity rate — charging speed affects time, not total cost.
What inputs does the EV Charging Cost Calculator need?
You'll need to provide: Battery capacity (kWh), Current charge (%), Target charge (%), Electricity rate ($/kWh), Charger efficiency (0-1). All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the EV Charging Cost Calculator?
The EV Charging Cost Calculator applies the formula exactly as calculated — Energy needed (kWh) = battery capacity × (target% − current%) / 100 / charger efficiency. Cost = energy needed × price per kWh. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Is the EV Charging Cost Calculator free to use?
Yes, the EV Charging Cost Calculator is completely free, requires no signup, and runs instantly in your browser.

EV充電コスト計算機について

The EV Charging Cost Calculator uses a real, verifiable formula — Energy needed (kWh) = battery capacity × (target% − current%) / 100 / charger efficiency. Cost = energy needed × price per kWh. — so results are accurate every time, not an approximation.