Terms

CarrierMath is a free calculator that estimates the 36-month cost of phone plan and device options based on publicly available carrier pricing and promo terms. By using this site, you agree to these terms.

Nothing here is financial, legal, or purchasing advice. It's a math tool built on data we've tried to source and verify carefully — see the "Estimate" badges and fine print on each result for what's confirmed versus a pattern-based assumption. Carrier pricing, promos, and eligibility rules change, sometimes without notice, and can vary by location, credit, and account history. Always confirm the final price and terms directly with the carrier before signing up or switching.

We provide this calculator "as is," without warranty of any kind, express or implied, including accuracy or fitness for a particular purpose. We are not liable for any decision made or cost incurred based on figures shown here.

Some links may earn us a commission — see the disclosure page. This never changes how routes are ranked.

We may update these terms as the product changes. Continued use after an update means you accept it.

Email hello@carriermath.com.