Top 6 SaaS Metrics Calculators for Product Leaders
Complete guide to SaaS metrics tools: MRR, LTV, Churn, LTV:CAC, Quick Ratio, and Rule of 40. Track everything your board asks about.
SaaS businesses live and die by their metrics. MRR growth, churn rates, LTV:CAC ratios, and the Rule of 40 determine whether you can raise funding, justify new hires, and sustain the business long-term. These six calculators handle every financial metric your board deck and investor meetings require, each with industry benchmarks for your company stage.
MRR/ARR Calculator
QuickMRR and ARR are the foundational metrics of every SaaS business. This calculator breaks down your recurring revenue into new, expansion, contraction, and churned components so you can see exactly where growth is coming from. Product leaders use MRR decomposition to identify whether growth is driven by acquisition or expansion and to spot early warning signs in contraction trends.
Senior PM, Head of Product, VP Product, CPO
New MRR, expansion MRR, contraction MRR, churned MRR
Net new MRR, ARR, MRR growth rate, component breakdown
LTV Calculator
QuickCustomer Lifetime Value tells you how much revenue a customer generates over their entire relationship with your product. This calculator computes LTV from your ARPU, gross margin, and monthly churn rate, then benchmarks it against enterprise, mid-market, and SMB SaaS standards. Product leaders use LTV to justify retention investments, set acquisition budgets, and segment customers by value.
Senior PM, Head of Product, VP Product, CPO
Monthly ARPU ($), gross margin (%), monthly churn rate (%)
Customer LTV, average lifespan, health benchmark, annualized churn
Churn Rate Calculator
QuickChurn is the silent killer of SaaS businesses. This calculator converts between monthly and annual churn rates and benchmarks your performance against SaaS companies at different stages — early-stage, growth, and mature. Product leaders use churn analysis to set retention goals, identify at-risk segments, and quantify the revenue impact of reducing churn by even a single percentage point.
IC PM, Senior PM, Head of Product, VP Product, CPO
Customer count at period start, customers lost, period type (monthly/annual)
Churn rate (monthly and annual), benchmark comparison, revenue impact estimate
LTV:CAC Ratio
QuickLTV:CAC ratio is the single most important unit economics metric for SaaS businesses. A ratio of 3:1 or higher indicates healthy economics; below that, you are spending too much to acquire customers relative to their value. Product leaders use this metric to evaluate go-to-market efficiency, negotiate marketing budgets, and determine whether the business model is sustainable at scale.
Senior PM, Head of Product, VP Product, CPO
Customer LTV ($), customer acquisition cost ($)
LTV:CAC ratio, payback period (months), health assessment, benchmark comparison
Quick Ratio Calculator
QuickThe SaaS Quick Ratio measures the efficiency of your revenue growth by comparing incoming MRR (new + expansion) against outgoing MRR (contraction + churn). A Quick Ratio above 4 indicates highly efficient growth; below 1 means the business is shrinking. Product leaders use this metric to evaluate whether growth is sustainable or if a leaky bucket problem needs urgent attention.
Senior PM, Head of Product, VP Product, CPO
New MRR, expansion MRR, contraction MRR, churned MRR
Quick ratio value, efficiency rating, growth sustainability assessment
Rule of 40 Calculator
QuickThe Rule of 40 states that a healthy SaaS company should have its revenue growth rate plus profit margin equal or exceed 40%. It measures the trade-off between growth and profitability that every scaling company faces. Product leaders use this benchmark in board discussions and strategic planning to evaluate whether the company is balancing investment in growth with path-to-profitability expectations.
Head of Product, VP Product, CPO
Revenue growth rate (%), profit margin (%)
Rule of 40 score, pass/fail, benchmark comparison, strategic guidance
Summary Comparison
| # | Tool | Complexity | Best For | Use Case | |
|---|---|---|---|---|---|
| 1 | 💰MRR/ARR Calculator | Quick | Senior PM, Head of Product, VP Product +1 | Decompose revenue growth to identify whether acquisition or expansion is driving results. | Try it → |
| 2 | 💎LTV Calculator | Quick | Senior PM, Head of Product, VP Product +1 | Justify retention investments by quantifying the long-term value of each customer. | Try it → |
| 3 | 📉Churn Rate Calculator | Quick | IC PM, Senior PM, Head of Product +2 | Quantify the revenue impact of reducing churn and set realistic retention targets. | Try it → |
| 4 | ⚡LTV:CAC Ratio | Quick | Senior PM, Head of Product, VP Product +1 | Evaluate go-to-market efficiency and determine if your business model scales. | Try it → |
| 5 | 🏃Quick Ratio Calculator | Quick | Senior PM, Head of Product, VP Product +1 | Determine if revenue growth is sustainable or masking a retention problem. | Try it → |
| 6 | 📏Rule of 40 Calculator | Quick | Head of Product, VP Product, CPO | Evaluate the growth vs. profitability balance for board and investor discussions. | Try it → |
Best Tool by Role
Verdict
Start with MRR and Churn as your baseline. Layer in LTV:CAC for acquisition efficiency. Use Quick Ratio as your growth health early warning system and Rule of 40 for board conversations.
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