EV Economy Tracker
Convert EV efficiency metrics and calculate real-world range and charging costs.
kWh
$/kWh
%
Frequently asked questions
What is Wh/km and how does it relate to mi/kWh?
Wh/km (watt-hours per kilometre) measures energy consumed per distance. mi/kWh (miles per kilowatt-hour) measures distance per energy unit. To convert: mi/kWh = 1609.34 ÷ (Wh/km × 1000). Lower Wh/km = more efficient.
Why use "usable battery" instead of total capacity?
EV batteries reserve a buffer (typically 5–15%) to protect battery health. Usable capacity is what you can actually use. Setting this accurately gives a more realistic range estimate.
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