Real Numbers.
Not Marketing Copy.
EVRatio was built because every EV cost calculator we found gave the same answer: the national average. Your electricity bill doesn’t use the national average. Your car doesn’t drive the national average. Your state doesn’t charge the national average. You need your own number, so we built tools that give it to you.
The ratio between what you pay now
and what you could pay electric.
That ratio is different for everyone. It depends on where you live, what you drive, how far you go, and when you charge. A national average doesn’t help much if you’re in Louisiana at about 13¢/kWh or Hawaii at 43¢/kWh.
EVRatio exists to give every driver their actual ratio, calculated from the same public sources energy analysts use, in tools simple enough to finish in 30 seconds.
Gas: 14.6¢/mile (28 MPG at $4.10/gal)
EV: 4.2¢/mile ($0.154/kWh, 3.7 mi/kWh)
EVRatio = 3.5× — gas costs 3.5× more per mile
The higher your ratio, the stronger the case for going electric in your specific situation.
Built and run by Shoaib
Hi, I’m Shoaib. I build every calculator on EVRatio, write the guides, and check each figure against its source before it goes live.
I started EVRatio because most EV cost numbers online were either national averages or rough guesses. What you pay to charge depends on your state, your car, and your plug, so a useful tool has to ask about all three. Every formula I use is published on this page, so you can check my work.
If a number looks wrong to you, please tell me. I read every message and correct any confirmed error.
Four Principles We Won’t Compromise On
These rules shape every calculation, every default, and every data source on the site.
📊 Data Sources
Every number on EVRatio comes from one of these sources. Each calculator shows the date of the data it uses.
The Formulas Behind Every Result
These are the core equations used across EVRatio calculators. We publish them so you can check any result yourself. If you find an error, let us know.
⚠️ What EVRatio is not
Questions About EVRatio
Electricity rates come from EIA, which publishes monthly, and we refresh them at least once a quarter. The national gas price is updated at least once a month. Maintenance and insurance figures come from yearly publications. Vehicle specs are reviewed with each new model year. Every calculator shows the date of the data it uses.
No. Calculations run in your browser, and you don’t need an account. If you use a calculator’s share button, your inputs are added to the link, so anyone you send it to can see them. Like most websites, EVRatio uses cookies for analytics and advertising. Our Privacy Policy explains what is collected and how to opt out.
EVRatio is free to use and is supported by display advertising. No EV maker, charging network, or solar company pays for placement in our calculators, and ads never change a result or a default.
There are three common reasons. (1) State rate vs national average. Many calculators use one national rate. We let you use your own state’s EIA rate, and in California at about $0.33/kWh that nearly doubles the charging cost. (2) Charging losses. Some calculators leave out charging losses when pricing a charge, which understates the cost by about 11%. Others subtract losses from EPA ratings that already include them, which overstates cost per mile. We count them exactly once. (3) Full cost picture. Our Total Cost of Ownership calculator includes insurance and maintenance, so its EV advantage is often smaller than on calculators that compare fuel only.
Use the contact page. Tell us which calculator, the value you think is wrong, and the source you’re comparing it with. If the figure is wrong, we’ll correct it and note the change.
Ready to find your actual EVRatio?
Free calculators. Your state’s EIA rate. Your exact EV model. Your miles. Results in about 30 seconds, no signup required.