BizCalcLabFree business and financial calculators for small businesses and freelancers
About BizCalcLab
BizCalcLab is a web-based collection of free business calculators and financial tools for small business owners, freelancers, and entrepreneurs. Based on the site text, it includes 32+ tools covering pricing and profit, payroll, tax, debt and investment, cash flow, valuation, and business decision support. Examples include profit margin, break-even, self-employment tax, freelance rate, salary, cash flow, business valuation, ROI, loan, and invoice generation tools. The site says calculations run client-side in the browser and do not require signup.