Calculators
Free calculators for financial ratios and everyday business numbers. Each one shows its formula and every step, and runs in your browser.
Calculators for business owners
Working capital calculator
DuPont analysis calculator
Margin calculator
Markup calculator
Break-even calculator
EBITDA calculator
Ratio calculators
Each ratio page includes its own calculator.
- Current ratio calculator
- Quick ratio calculator
- Cash ratio calculator
- Gross profit margin calculator
- Operating profit margin calculator
- Net profit margin calculator
- EBITDA margin calculator
- Return on assets calculator
- Return on equity calculator
- Return on invested capital calculator
- Debt-to-equity ratio calculator
- Debt-to-assets ratio calculator
- Interest coverage ratio calculator
- Debt service coverage ratio calculator
- Asset turnover calculator
- Inventory turnover calculator
- Days sales outstanding calculator
- Days payable outstanding calculator
- Cash conversion cycle calculator
- Earnings per share calculator
- Price-to-earnings ratio calculator
- Price-to-book ratio calculator
- EV/EBITDA calculator
How these calculators work
- Every calculator runs in your browser. The figures you enter are not sent anywhere or stored.
- Each result shows the formula and every step of the working, so you can check it by hand.
- All calculators share one set of formula definitions, tested against hand-checked examples, so a ratio gives the same answer on every page.
- Where sources define a measure differently, the calculator offers the variants and says which one it uses.
- You can embed any calculator on your own site with the code on its page.





