The Calcfolio is a collection of free online calculators built for one purpose: giving you honest numbers before you make money decisions.
Whether you're a seller wondering what eBay or PayPal will take from your sale, a homeowner comparing refinance offers, or an accident victim checking a settlement estimate — our tools do the math instantly, show the formula, and cite the rates.
Our standards: every rate is verified against official sources before publishing, with the verification date shown on each calculator page. Math is tested. Formulas are displayed, not hidden. Estimates are always labeled as estimates. We don't ask for your email, we don't sell data, and we don't push you toward any product.
Calculators are starting points, not professional advice — see our disclaimer.