Free Accounting Calculators
12 free calculators for profit margins, liquidity, efficiency, leverage, break-even and depreciation. Each links to a plain-English explanation so you learn what the number means.
Home › Calculators
Profitability
Break-Even Point Calculator
The sales you need to cover all your costs.
Use the calculator What is it?Markup & Margin Calculator
Convert between markup and margin when pricing.
Use the calculator What is it?Gross Profit Margin Calculator
The share of sales left after the cost of goods sold.
Use the calculator What is it?Net Profit Margin Calculator
The share of sales you keep as profit after all costs.
Use the calculator What is it?Liquidity
Quick Ratio (Acid-Test) Calculator
A stricter liquidity test that leaves out inventory.
Use the calculator What is it?Efficiency
Inventory Turnover Calculator
How many times you sell and replace your stock.
Use the calculator What is it?Accounts Receivable Turnover Calculator
How quickly customers pay what they owe.
Use the calculator What is it?Leverage
Debt-to-Equity Ratio Calculator
How much of the business is financed by borrowing.
Use the calculator What is it?Depreciation
Straight-Line Depreciation Calculator
Equal depreciation every year of the asset’s life.
Use the calculator What is it?Double Declining Balance Calculator
Faster depreciation that is highest in the early years.
Use the calculator What is it?Formulas at a glance
| Measure | Formula |
|---|---|
| Break-even units | Fixed costs ÷ (Selling price − Variable cost per unit) |
| Markup % | (Price − Cost) ÷ Cost × 100 |
| Margin % | (Price − Cost) ÷ Price × 100 |
| Gross profit margin | Gross profit ÷ Revenue × 100 |
| Net profit margin | Net profit ÷ Revenue × 100 |
| Current ratio | Current assets ÷ Current liabilities |
| Quick ratio | (Current assets − Inventory) ÷ Current liabilities |
| Working capital | Current assets − Current liabilities |
| Inventory turnover | Cost of goods sold ÷ Average inventory |
| Receivables turnover | Net credit sales ÷ Average receivables |
| Debt-to-equity | Total liabilities ÷ Total equity (definitions vary) |
| Straight-line depreciation | (Cost − Residual value) ÷ Useful life |
| Double declining balance | (2 ÷ Useful life) × Opening book value |
Frequently asked questions
Are these calculators free?
Yes. They are free to use for study, teaching and your own business planning.
How should I use the results?
Treat them as a starting point. A ratio means most when you compare it with similar businesses and with the same business over time.
Do the calculators use standard formulas?
Yes, the standard textbook formulas shown above. Some syllabuses use slight variations, such as using average rather than closing balances, so check your own course notes.
Which ratio should I use to test liquidity?
The current ratio counts all current assets. The quick ratio is stricter because it excludes inventory. Looking at both gives a fuller picture.
Keep learning
These calculators are for general learning and planning. Check results against your own records and accounting policies.