{
  "id": "ev-efficiency",
  "slug": "ev-efficiency-converter",
  "title": "EV Efficiency Converter (Wh/km, kWh/100km, mi/kWh, MPGe)",
  "description": "Convert electric vehicle efficiency between Wh/km, kWh/100km, mi/kWh and MPGe. Estimate range and charging cost.",
  "category": "converters",
  "tags": ["ev", "electric", "efficiency", "kwh", "mpge", "wh/km", "range", "tesla"],
  "icon": "battery-charging",
  "needsBackend": false,
  "relatedModules": ["fuel-consumption", "unit-converter"],
  "seoIntro": "Electric vehicle efficiency is reported in many ways. Europe and most manufacturers use Wh/km or kWh/100km (lower is better). The US EPA reports mi/kWh and MPGe — Miles Per Gallon equivalent — based on the energy content of a gallon of gasoline (33.7 kWh).\n\nThis tool converts between all four notations and estimates the range and charging cost from your battery capacity.",
  "seoFaq": [
    { "q": "What is MPGe?", "a": "Miles Per Gallon equivalent. The US EPA defines 1 US gallon of gasoline as containing 33.7 kWh of energy, so MPGe = mi/kWh × 33.7." },
    { "q": "How do I compare an EV with a gasoline car?", "a": "Compare cost per 100 km. EVs are usually 2–4× cheaper to run because the energy is cheaper and the drivetrain is far more efficient." },
    { "q": "Why does battery capacity matter?", "a": "Range = (battery capacity ÷ efficiency). A 75 kWh battery at 16 kWh/100km gives ~470 km of real-world range." }
  ]
}