Every formula on the site, grouped by category, on one page you can print or save as a PDF. It is generated from the same definitions the calculators use, so it always matches them. Follow any name to its page for the explanation, a calculator and the sources.
Net income + Interest expense + Income tax expense + Depreciation + Amortization
Amount
Variant: from operating income (EBIT)
Operating income + Depreciation + Amortization
Amount
Average balances are (opening + closing) ÷ 2. Day-count measures use 365 days unless stated. Definitions follow the sources cited on each page; where sources differ, the page explains the variants.