SaaS Rule of 40 Calculator — Growth Health Scorer
Calculate your Rule of 40 score by adding YoY revenue growth rate and EBITDA margin. See your tier (Elite / Healthy / Below Average), a visual gauge with the 40-point threshold, benchmark comparison against public SaaS companies, and a what-if table showing what growth or margin improvement is needed to reach 40, 50, or 60.
How to Use SaaS Rule of 40 Calculator — Growth Health Scorer
How to Use the SaaS Rule of 40 Calculator
Step 1: Select Your Profit Metric
Choose which profit metric to combine with revenue growth:
- EBITDA Margin — most common choice; earnings before interest, taxes, depreciation, and amortization divided by revenue
- FCF Margin — free cash flow margin; useful for capital-efficient businesses
- Net Income Margin — use when evaluating GAAP profitability
Step 2: Enter Your Inputs
- YoY Revenue Growth Rate — annual revenue growth percentage (e.g. 35 for 35%)
- Profit Metric — your EBITDA, FCF, or net income as a percentage of revenue. Can be negative for fast-growing companies still investing in growth.
Step 3: Read Your Score
The calculator adds the two inputs to produce your Rule of 40 score. The score is shown on a visual gauge with the 40-point threshold marked:
- ≥ 60 — Elite (top-quartile public SaaS)
- ≥ 40 — Healthy (passes the Rule of 40)
- ≥ 20 — Below Average
- < 20 — Underperforming
Step 4: Use the What-If Table
If your score is below 60, the what-if table shows two paths to reach each target score:
- Growth path: what revenue growth rate is needed if margin stays the same?
- Margin path: what margin is needed if growth stays the same?
Step 5: Check the Benchmark Comparison
Compare your score visually against public SaaS benchmarks: top-quartile public SaaS (~60), median public SaaS with >$100M ARR (~40), growth-stage median (~32), and early-stage (~25).
Frequently Asked Questions
Most Viewed Tools
Screen Size Converter — Diagonal Dimension Tool
Calculate screen width and height from diagonal size and aspect ratio. Convert between inches and centimeters for displays, TVs, and monitors with instant dimension calculations.
Use Tool →DPI Calculator — Print Resolution Tool
Calculate DPI (dots per inch), image dimensions, and print sizes. Convert between pixels and physical dimensions for printing and displays.
Use Tool →TOTP Code Generator — 2FA Testing Tool
Generate time-based one-time passwords from a TOTP secret key. Enter your base32 secret, choose a period and digit length, and get the current and next codes with a live countdown timer. Useful for testing and debugging 2FA integrations.
Use Tool →Password Entropy Calculator — Crack Time Estimator
Calculate the information-theoretic bit entropy of any password or API key. Detects character set pools automatically, shows the total number of possible combinations, and estimates crack time across five attack scenarios from rate-limited web logins to GPU cracking clusters.
Use Tool →JSONL Formatter — Line-by-Line Validator
Format, validate, and inspect JSON Lines (JSONL) and NDJSON files. Validates each line individually, reports parse errors by line number, outputs compact JSONL or a pretty-print preview, and lets you download the cleaned file.
Use Tool →Seconds to Time Converter — HH:MM:SS Formatter
Convert seconds to HH:MM:SS time format instantly with precise calculations and easy-to-read formatting.
Use Tool →JSON to Zod — Schema Generator
Generate Zod validation schema code from a JSON sample object. Infers z.string(), z.number(), z.boolean(), z.array(), z.object(), and z.null() types automatically. Handles nested objects, arrays of objects with optional field detection, and outputs copy-ready TypeScript with import and z.infer type alias.
Use Tool →TLS Cipher Suite Checker — Strength Analyzer
Check TLS protocol version compatibility and cipher suite strength ratings against current best practices. Supports IANA and OpenSSL cipher names — rates each suite as Strong, Weak, or Deprecated and explains why.
Use Tool →Related SaaS Integration & Backend Tools
Webhook Tester — Live Payload Inspector
FeaturedGenerate a unique webhook URL and receive live HTTP requests. Inspect request headers, method, body, and timestamp in real time. No account required — payloads are stored temporarily for debugging.
Use Tool →API Cost Estimator — Forecast Monthly Usage & Tiers
Estimate monthly API costs from request volume and per-request or per-token pricing tiers. Enter your monthly request volume, configure up to 3 pricing tiers, and see total cost, cost per 1K requests, cost per user, and the number of users needed to break even.
Use Tool →Annual Contract Value (ACV) Calculator — Normalize and Audit SaaS Subscription Revenue
Calculate Annual Contract Value from deal size and term length, and compare multiple deal structures side by side with per-seat and monthly normalized revenue.
Use Tool →Churn Rate Calculator — Revenue Churn Tracker
Calculate customer and revenue churn rates for monthly, quarterly, or annual periods. Get annualized churn rates, retention metrics, and a 12-month projection showing how churn compounds over time.
Use Tool →Trial-to-Paid Conversion Calculator — Free Trial Conversion
Calculate your free trial conversion rate and see the revenue impact of conversion improvements. Enter trial signups, converted customers, and average MRR to quantify how +1%, +5%, or +10% conversion gains translate to additional MRR and ARR.
Use Tool →Pricing Elasticity Estimator — Model Demand Sensitivity and Revenue Curves
Model demand sensitivity to price changes and estimate revenue impact of pricing adjustments
Use Tool →SaaS Pricing Tier Builder — MRR Estimator
Design and compare SaaS pricing tiers visually. Define plan names, monthly and annual prices, feature inclusions, and CTA text — then preview a live pricing table, copy it as embeddable HTML, and estimate MRR with a conversion rate and plan distribution calculator.
Use Tool →ARR Growth Planner — Model SaaS Compound Revenue Trajectory and Runway
Set ARR targets and model the new/expansion/churned MRR mix needed to hit annual growth goals
Use Tool →Share Your Feedback
Help us improve this tool by sharing your experience