CalcBundle is a free suite of 66 business and finance calculators built for founders, small-business owners and e-commerce sellers. Work out business valuation, ROI, break-even, CAC and LTV, burn rate and runway, rental yields, capital gains and more. Everything runs locally in your browser — no sign-up, nothing stored, instant results.
Hey everyone — I built CalcBundle because I kept opening five different tabs to do simple business math: break-even here, a valuation multiple there, FBA fees somewhere else. It's now 66 calculators in one place, across business, SaaS, e-commerce, real estate, investing and tax. No sign-up, nothing stored — it all runs in your browser. Six more categories are on the way. I'd genuinely love feedback on which calculators to add next.