SaaS finance tools
Free SaaS Finance Calculators
Use these lightweight SaaS calculators to understand recurring revenue, retention, acquisition efficiency, growth quality, and capital efficiency. Each tool includes formulas, interpretation notes, exports, and educational disclaimers.
Recurring revenue calculators
Use these tools to convert monthly recurring revenue into ARR context and understand the baseline behind a SaaS forecast.
Retention calculators
Measure churn, retained revenue, and expansion impact so growth assumptions do not hide customer-base weakness.
Retention
SaaS Churn
Calculate revenue churn rate, retained MRR, and lost ARR run rate from starting MRR and churned MRR.
Revenue churn rate = Churned MRR / Starting MRR
Open calculatorRetention
NRR Calculator
Calculate SaaS net revenue retention and gross revenue retention from expansion, contraction, and churned MRR.
NRR = (Starting MRR + Expansion - Contraction - Churn) / Starting MRR
Open calculatorAcquisition efficiency calculators
Estimate whether growth is affordable by comparing acquisition cost, gross profit, and payback timing.
Capital efficiency calculators
Review the relationship between growth, margin, burn, and net new ARR for planning and investor-style conversations.
Efficiency benchmark
Rule of 40
Calculate SaaS Rule of 40 score from revenue growth rate and profit margin.
Rule of 40 score = Revenue growth rate + Profit margin
Open calculatorCapital efficiency
Burn Multiple
Calculate burn multiple from net burn and net new ARR to understand SaaS growth efficiency.
Burn multiple = Net burn / Net new ARR
Open calculatorNeed spreadsheet detail?
Use the SaaS forecasting spreadsheet template when you want a month-by-month model with new MRR, expansion MRR, churned MRR, ending MRR, and ARR.