Business Calculators
Acid-Test Ratio Calculator
Calculate the acid-test (quick) ratio from current assets, inventory, and current liabilities to check liquidity without relying on inventory.
Break-Even Calculator
Find break-even units and revenue from fixed costs, price per unit, and variable cost per unit, including the contribution margin ratio.
Burn Rate Calculator
Calculate gross and net burn rate from monthly expenses and revenue, or from the actual change in a cash balance over time.
Cash Flow Calculator
Combine operating, investing, and financing cash flow into a net cash flow figure and ending cash balance for any reporting period.
Churn Rate Calculator
Calculate customer churn rate or revenue churn rate for any period, along with the corresponding retention rate, to track subscriber loss.
Commission Calculator
Calculate commission earned from a flat sales rate or a base-salary-plus-commission structure, with net pay and total earnings shown clearly.
Conversion Rate Calculator
Calculate conversion rate by dividing conversions by total visitors, for evaluating landing pages, ad campaigns, or sales funnels.
Customer Acquisition Cost Calculator
Calculate customer acquisition cost by dividing total sales and marketing spend by the number of new customers gained in the same period.
Lifetime Value Calculator
Estimate customer lifetime value using average purchase behavior or a churn-based formula built on ARPU, gross margin, and churn rate.
LTV to CAC Ratio Calculator
Calculate the ratio of customer lifetime value to customer acquisition cost, a core SaaS and startup growth health metric.
Markdown Calculator
Calculate the exact amount saved and final sale price from an original price and a markdown percentage, for retail pricing or shopper decisions.
Markup Calculator
Solve for selling price, markup percentage, or cost, and see exactly how markup on cost differs from margin on revenue at the same profit level.
Profit Calculator
Calculate profit from revenue and expenses for any period, with the resulting profit margin and a clear profit, loss, or break-even status.
Profit Margin Calculator
Solve for profit margin, required revenue, or maximum cost from any two of the three values, with the exact markup-to-margin conversion shown.
Revenue Calculator
Calculate total revenue from units sold and price per unit, or measure revenue growth rate between two reporting periods.
ROI Calculator
Calculate simple ROI or annualize a multi-year return so investments held for different lengths of time can be compared on equal footing.
Rule of 40 Calculator
Calculate the Rule of 40 score by combining revenue growth rate and profit margin, a widely used SaaS company health benchmark.
Salary Comparison Calculator
Compare two job offers by adjusting for cost of living differences between cities or by annualizing salaries paid on different pay schedules.
Startup Runway Calculator
Calculate how many months of runway remain at the current net burn rate, based on cash balance, monthly expenses, and monthly revenue.
Working Capital Calculator
Calculate working capital from current assets and current liabilities to assess a business's short-term liquidity position.
The Numbers Every Business Runs On
Whether it is a solo freelancer or a growing startup, every business answers the same core questions with the same handful of formulas: how much does it cost to acquire a customer, how long can the business survive on current cash, and at what sales volume does it stop losing money. These seventeen calculators cover that shared foundation.
Where Break-Even Actually Sits
Take a business with $10,000 in monthly fixed costs, selling a product for $50 with $30 in variable cost per unit — a $20 contribution margin per sale. Dividing fixed costs by that margin gives a break-even point of exactly 500 units a month.
Sell fewer than 500 units and the business loses money; sell more and every additional unit is close to pure profit above the fixed-cost floor. Run your own numbers through the Break-Even Calculator.
A Common Mistake: Chasing CAC Without Checking LTV
A $200 customer acquisition cost sounds expensive in isolation, but it is a great deal if that customer's lifetime value is $2,000 — and a losing proposition if they are only worth $150. The Customer Acquisition Cost Calculator and Lifetime Value Calculator are meant to be read together, never in isolation.
Popular Business Calculators
- Burn Rate Calculator — calculates how quickly a business is spending its cash reserves.
- Churn Rate Calculator — measures what percentage of customers are lost over a given period.
- ROI Calculator — measures return relative to the amount invested.
See also: Accounting Calculators for financial ratio analysis, Bookkeeping Calculators for ledger-level math.