Useful Business Tools usefulbusinesstools.com

About Useful Business Tools

A growing shelf of free, clear-formula calculators for freelancers, operators, and small businesses. Every tool shows the assumptions and math so you can verify the number before you act.

What we build

Practical business utilities only: late fees, cash runway, hiring cost, commissions, receivables aging, and similar jobs-to-be-done. No accounts. No paywall. No black-box “AI answer.”

How we decide what ships

Each page has to beat a thin blog post or outdated calculator in at least one concrete way: cleaner math, better defaults, clearer mobile UX, better examples, or a more useful result state. If a page is not useful enough to bookmark, it does not belong here.

Trust principles

  • Formulas and assumptions stay visible
  • Tools run client-side whenever possible
  • Public copy stays practical — no hype metrics or fake testimonials
  • Results are estimates for planning, not legal, tax, or financial advice

Live tools