Business Calculators

Turning Business Math Into Fast Decisions

Running a business involves constant tradeoffs: whether to hire, whether a price change helps or hurts margin, whether a marketing channel is actually profitable. Business calculators exist to answer these questions in minutes instead of building a new spreadsheet model every time a question comes up. Enter the inputs you already know (revenue, costs, customer counts) and get a clear output you can use in a decision or a board meeting.

Because the underlying formulas are standardized across finance, accounting, and venture capital, the numbers these business calculators produce, gross margin, EBITDA, CAC payback, are directly comparable to industry benchmarks and to what an investor or lender will calculate independently when evaluating your business.

Understanding Customer and Growth Metrics

Customer acquisition cost (CAC) and customer lifetime value (LTV) are the two numbers that determine whether a growth strategy is sustainable. A healthy business generally wants an LTV to CAC ratio of at least 3 to 1, meaning each customer is worth at least three times what it costs to acquire them. Our LTV to CAC ratio calculator, along with dedicated CAC and LTV calculators, breaks this relationship down so you can evaluate a specific marketing channel or your business as a whole.

For subscription and SaaS businesses specifically, monthly recurring revenue (MRR), annual recurring revenue (ARR), and churn rate tell a more complete growth story than total revenue alone. The SaaS metrics calculator and churn rate calculator on this page follow the same definitions used by venture investors, so the outputs are ready to drop directly into an investor update or board deck.

Cash Flow, Runway, and Financial Ratios

Profitable businesses can still fail from running out of cash, which is why runway and burn rate deserve as much attention as the income statement. A runway calculator divides your current cash balance by your monthly net burn to show exactly how many months you have before you need new revenue, funding, or expense cuts. Update this figure monthly, since burn rate rarely stays perfectly flat.

Beyond cash flow, standard financial ratios like the current ratio, quick ratio, and debt-to-assets ratio give lenders and investors a fast read on financial health. These ratios matter most when you are seeking a business loan or preparing for due diligence, since they are almost always among the first numbers a lender's underwriting process checks.

Valuing a Business or Raising Capital

Whether you are raising a funding round, buying a franchise, or preparing to sell, valuation calculators translate financial performance into an estimated business value using standard methods like revenue multiples and EBITDA multiples. A cap table calculator and dilution calculator help founders understand exactly how a new funding round changes ownership percentages before signing a term sheet.

The rule of 40 calculator, popular among SaaS investors, adds growth rate and profit margin together as a single health check, the idea being a company growing 30% a year with a 10% margin is roughly as healthy as one growing 15% with a 25% margin. It is a quick sanity check rather than a full valuation, but it is often the first number an investor looks at.

Inventory, Operations, and Working Capital

For product and inventory-based businesses, operational efficiency calculators like inventory turnover, days inventory outstanding, and the economic order quantity calculator determine whether capital is tied up in slow-moving stock or being deployed efficiently. The cash conversion cycle calculator ties these together by measuring the total time between paying for inventory and collecting cash from a sale, a figure that directly affects how much working capital a growing business needs to fund its own growth.