Calcnomics offers 30+ free financial calculators ā paycheck, mortgage, compound interest, retirement, income tax, and more. No sign-up. Works for all 50 US states. Available in English and Spanish.
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Maker
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Hey Product Hunt! š
I built Calcnomics because I was frustrated with financial calculators that either require sign-ups, are cluttered with ads, or don't cover state-level taxes.
The most-used calculator is the Paycheck Calculator ā it shows your exact take-home pay after federal + state taxes for all 50 states. Just enter your salary and state, and you get a full breakdown instantly.
A few things I'm proud of:
ā URL state ā every calculation is shareable via link
ā Spanish version for all calculators (/es/ routes)
ā Schema.org JSON-LD on every page for better search visibility
ā Zero sign-up, zero ads
Would love feedback on what calculators you'd want added next. What financial decisions do you find hardest to model?