2 free tools, no signup
Run the numbers before you make the call.
VentriTools is a library of focused calculators for people who run businesses — online and off. Pick a tool, enter your own figures, get a straight answer. No account, no email gate, no spreadsheet required.
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Free, every tool
No paywall, no trial period, no "create an account to see your result."
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Nothing stored
Your numbers stay in your browser. We don't log inputs or require sign-in.
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Shown working
Every calculator explains its formula, so you can check it or rebuild it yourself.