EV Charging Plan Calculator

Compare subscription vs pay-per-use EV charging to find the better deal.

sessions
$/mo
$/kWh or /session
$/kWh or /session

When Does an EV Charging Subscription Pay Off?

EV charging networks like ChargePoint, EVgo, and Electrify America offer subscription plans that lower the per-session or per-kWh rate in exchange for a monthly fee. For drivers who frequently use public charging, the savings can be substantial. For those who rarely charge away from home, the monthly fee can easily exceed the discount savings.

How the Calculation Works

Monthly cost without subscription = sessions × pay-per-use rate. Monthly cost with subscription = monthly fee + sessions × subscription rate. Break-even = monthly fee ÷ (pay-per-use rate − subscription rate). Charging more than this number each month makes the subscription worthwhile.

Frequently Asked Questions

Do subscriptions lock you in for a minimum term?

Most EV charging subscriptions in the US are month-to-month with no long-term commitment. You can cancel anytime, so it's low-risk to try if your driving habits change seasonally.

What if the subscription includes free sessions?

Enter the number of paid sessions only (total sessions minus free sessions), and set the subscription per-session rate to reflect only paid sessions. This gives you an accurate comparison.