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EV Loan & Payment Calculator

Calculate the monthly payment on an electric-car loan, plus total interest and the amount financed. Then see the part most calculators miss: your real monthly cost after the gas you'll stop buying.

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Loan term

Real cost after fuel savings

We subtract the gas you'll stop buying to show your true monthly cost.

mi/kWh
$/kWh
MPG
$/gal

Monthly payment

$768

− fuel savings$71/mo
Real monthly cost$698
Amount financed
$38,800
Total interest
$7,297
Sales tax
$2,800.00

Estimate only. Most states tax the price after trade-in. Enter any tax credit or rebate under “incentives”; confirm current eligibility, which changes over time. Insurance is not included.

Frequently asked questions

From the amount financed (vehicle price plus sales tax, minus your down payment, trade-in, and any incentives), the APR, and the loan term. The monthly payment is the standard amortization of that balance over the term. A longer term lowers the payment but raises the total interest you pay.

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WattSimple. (2026, June 26). EV Loan & Payment Calculator. https://wattsimple.com/calculators/ev-loan-payment

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Sources & standards

This tool's methodology and data follow US standards and authoritative public datasets: