How to use these calculators
Small-business decisions often combine pricing, fixed costs, cash timing, borrowing, and demand uncertainty. Run a simple model first, then stress-test the inputs that could change the decision.
Start with the formula
Estimate the sales volume needed to cover fixed and variable costs, then stress-test the assumptions.
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Profit MarginCalculate gross profit, gross margin, and markup from sales revenue and direct cost.Net Profit MarginCalculate net profit and net margin after direct costs, operating expenses, interest, and taxes.Break-EvenCalculate the unit sales and revenue needed to cover fixed and variable costs.Cash RunwayEstimate net monthly burn and how many months current cash can support operations.Loan PaymentEstimate monthly payments, total repayment, and total interest for a fixed-rate loan.Revenue GrowthCalculate revenue growth rate, dollar change, and the revenue needed for a target growth rate.CAGRCalculate compound annual growth rate and total growth over a selected number of years.ROIMeasure return on investment and net gain from a project, campaign, or purchase.