Quirkulator

Business Metric Calculators

18 calculators covering margin, markup, break-even and cash flow, each with its formula and worked examples.

Business Metric Calculators brings together 18 calculators for margin, markup, break-even and cash flow, including Break-Even Units Calculator, Cost of Goods Sold Calculator, EBITDA Margin Calculator and Inventory Turnover Calculator.

Every page states its method up front — which formula, which convention, which assumptions — because those choices change the answer, and a calculator that hides them is only pretending to be precise.

All 18 pages compute in your browser: nothing you type is sent anywhere, and results update as you edit. Each one carries worked examples, interpretation bands where a score needs context, and a FAQ answering what people actually ask about that calculation.

The collection is part of Business & Marketing, and every page links to the neighbouring calculations you usually need next.

18 pages in this collection

Break-Even Units CalculatorFind how many units you must sell to cover fixed costs, and the safety margin above it.Burn Rate and Runway CalculatorNet monthly burn, months of runway, and the month revenue growth closes the gap.Contribution Margin CalculatorSplit price into variable cost and contribution, and see what each sale gives you towards fixed costs.Cost of Goods Sold CalculatorWork out COGS from opening stock, purchases and closing stock, with gross profit alongside.Current Ratio CalculatorDivide current assets by current liabilities to see how well short-term bills are covered.Days Inventory Outstanding CalculatorTurn inventory and cost of sales into days of stock cover and a cash conversion cycle.Debt to Equity Ratio CalculatorCompare borrowings with shareholders’ funds, on both the debt-only and all-liabilities basis.EBITDA Margin CalculatorAdd depreciation and amortisation back to operating profit and express the result against revenue.Gross Margin CalculatorFind gross profit and gross margin from revenue and cost of goods sold.Interest Coverage Ratio CalculatorHow many times operating profit covers the interest bill, with debt service cover alongside.Inventory Turnover CalculatorFind how many times a year stock turns over, and the days of cover that implies.Markup to Margin CalculatorConvert between markup on cost and margin on price, in both directions, from one cost figure.Net Profit Margin CalculatorTurn revenue and net profit into a net margin, with the cost load and profit per sale.Operating Margin CalculatorMeasure profit from core trading, before interest and tax distort the picture.Quick Ratio CalculatorThe acid test: cash, securities and receivables against current liabilities, with stock excluded.Revenue Per Employee CalculatorRevenue divided by headcount, with payroll load and the revenue each new hire has to bring.True Cost of an Employee CalculatorBuild salary up to a fully loaded annual cost, then convert it into an hourly and chargeable rate.Working Capital CalculatorNet current assets against current liabilities, and how many days of trading they fund.

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