EV vs. Gas Cost Calculator
Effective date: March 13, 2026 · Operated by Muster Systems LLC
Should I Buy a Car? ("the Site") is a free, browser-based tool that helps you compare the monthly and long-term costs of keeping a gas vehicle versus purchasing an electric vehicle. All calculations run entirely in your browser — no data you enter is transmitted to our servers or stored anywhere outside your own device.
Calculator inputs: The numbers you enter (vehicle prices, mileage, fuel costs, etc.) exist only in your browser's memory during your session. We do not collect, store, or transmit this information.
Local storage: We store a single flag in your browser's
localStorage (evCalc_quizCompleted) to remember whether you have
completed the setup quiz. This data never leaves your device.
Cookie consent: We store your cookie consent choice in
localStorage so we don't show the consent banner on every visit.
Advertising cookies: We use Google AdSense to display advertisements on the Site. Google and its partners may use cookies and similar technologies to show you personalized ads based on your browsing activity on this and other websites. See the section below for details and opt-out options.
This site uses Google AdSense, a third-party advertising service provided by Google LLC. AdSense uses cookies to serve ads based on your prior visits to this website and other websites across the internet.
Google's use of advertising cookies enables it and its partners to serve ads based on your visit to this site and/or other sites on the Internet. You may opt out of personalized advertising by visiting Google Ad Settings.
Alternatively, you can opt out of third-party vendor use of cookies for personalized advertising by visiting aboutads.info or the Network Advertising Initiative opt-out page.
For more information about how Google uses data when you use our site, see How Google uses data when you use our partners' sites or apps.
The Site itself does not set any tracking cookies. Google AdSense may set cookies on your device for ad personalization, frequency capping, and measurement. These cookies are governed by Google's Privacy Policy.
You can control cookies through your browser settings. Disabling cookies may affect the display of advertisements but will not affect the core functionality of the calculator.
We do not currently use any analytics services (such as Google Analytics). If this changes, this policy will be updated.
This Site is not directed at children under 13. We do not knowingly collect personal information from children. If you believe a child has provided us with personal information, please contact us and we will delete it.
We may update this Privacy Policy from time to time. The effective date at the top of this page will reflect the date of the most recent revision. Continued use of the Site after changes are posted constitutes your acceptance of the updated policy.
If you have any questions about this Privacy Policy, please contact us at:
Muster Systems LLC
Email: contact@mustersystems.co