Cole's EV Calculator

Cole's EV Calculator estimates how long an electric car takes to charge, how many miles that adds and what it costs, and compares the cost of a trip in a gas car and an electric car.

What it does

• Charge time, cost and range. Enter a battery size, charger speed, electricity price and start and end charge. With only a battery and an efficiency it shows your range instead.
• Time-of-use pricing. Set a price schedule in Settings and the cost follows the hour you start charging, with a line for each price period. Trip Compare can use the average, cheapest or highest price.
• Your car's limits. Under Advanced, enter the car's own maximum AC and DC charge rate. The slower of the car and the charger sets the time. Optionally slow down near full and include charging losses.
• Custom charger speeds. Add your own speeds, or work one out from volts, amps and phases.
• Trip Compare. Gas against electric for a trip, in US, UK or metric units. It shows whether each car makes the trip in one go or how many fill-ups and charging stops it needs, and how much CO₂ you save by not burning gas.
• Saved sets. Keep named sets of numbers such as "Home" or "Road trip" and switch between them.
• Show the math. Tap a result to see each step worked out in plain words.
• Siri, Shortcuts and Spotlight. "How long to charge", "How much to charge" and "How far can I go".