Websums
Free finance & small-business calculators in your browser
Websums launched on July 8, 2026 with 2 votes.
What it does
Websums is a suite of 18 free personal-finance and small-business calculators that run entirely in your browser — no sign-up, no paywall. Mortgage (with UK stamp duty + US state property tax), salary, compound interest, FIRE, ROAS, burn rate, unit economics and more. Just clear answers, fast.
Websums — your personal finance & small business hub. Free online calculators for mortgages, salary, FIRE, ROAS, burn rate and more. No sign-up, all in your browser.
A growing collection of free online calculators for personal finance and small business — mortgages, salary, FIRE, ROAS, burn rate and more. No sign-up, no clutter, just clear answers in your browser. Websums is a hub of free calculators for the everyday money questions individuals and small business owners actually face — mortgages, take-home pay, self-employment and corporation tax, VAT, retirement timelines, ad spend returns, runway and unit economics. Most online calculators are slow, ad-stuffed, or hidden behind sign-ups; we build fast, focused tools that give you a clear answer and then stay out of the way. Websums is built and maintained by EllaByte , a UK web studio, which is…from websums.com
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Source: Product Hunt launch ↗
Launched alongside, July 2026
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