SaaS Rule of 40 Calculator

Use one entity, currency, reporting interval, recurring-revenue definition, customer identity rule, and acquisition policy across every input. Growth and margin cover the same business scope and comparable period. The selected profitability metric is named and reconciled. Reconcile each value to the same operating records. A mathematically correct result can still be misleading when cohorts, periods, contract types, expense boundaries, or foreign-exchange conventions differ.

The sum displays a growth-profitability tradeoff under supplied definitions; forty is a convention, not a universal decision threshold. Track the metric across consistently prepared periods and explain material definition changes. Pricing, acquisitions, contract timing, annual prepayments, currency, customer consolidation, consumption revenue, one-time services, and accounting presentation can move a result without representing the same operating change.

No. This educational calculator applies disclosed arithmetic to supplied values; it is not GAAP revenue, an audit, forecast, valuation, fundraising recommendation, or investment decision. Using EBITDA, operating, free-cash-flow, or adjusted margins can produce materially different sums for the same company. Keep the source records and metric definition, reconcile changes, test alternative conventions, and obtain qualified review before using the result in a material decision.