Borkish is a free business and marketing calculator library built to make common commercial metrics easier to calculate, understand and compare.
What we publish
We publish calculators for advertising, ecommerce, pricing, profit, social media, SEO, email, agencies, freelancing and business planning. Each calculator shows the formula, explains the inputs and includes guidance for interpreting the result.
What we do not do
Borkish does not provide accounting, legal, tax, investment or other regulated professional advice. Our tools are informational resources for planning, comparison and analysis.
How the calculators are built
Each tool is based on a defined arithmetic formula. We test the default inputs against an expected result before the calculator is published, explain common input mistakes, and keep the formula visible so readers can check the calculation themselves.
Accuracy and corrections
Business platforms can define similar metrics differently. We therefore explain assumptions and encourage readers to use consistent reporting periods and source definitions. If you find an error, use our Contact page and include the calculator URL, the issue you found and the result you expected.
Editorial independence
Advertising, sponsorships or affiliate relationships do not change calculator formulas or the mathematical result produced by a tool. See our Editorial Policy and Calculator Methodology for more detail.