Comprehensive guide to the most important SaaS metrics organized by category. Learn how to calculate, interpret, and optimize each metric for your business growth.
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Track how effectively you acquire new customers and users
Number of New Users = Count of unique users who signed up during the period
Fundamental growth metric that shows the raw volume of user acquisition and helps track growth momentum.
Varies by industry and stage. Focus on consistent growth trends rather than absolute numbers.
User Growth Rate = ((New Period Users - Previous Period Users) ÷ Previous Period Users) × 100
Shows the velocity of user base expansion and helps predict future growth trajectory.
Early-stage SaaS: 15-20% monthly growth. Mature companies: 5-10% monthly growth.
CAC = (Total Sales & Marketing Expenses) ÷ Number of New Customers Acquired
Critical for understanding the efficiency of your marketing and sales efforts and determining sustainable growth strategies.
Should be recovered within 12 months. Varies widely by industry and average contract value.
Activation Rate = (Users Who Completed Key Actions ÷ Total New Users) × 100
Measures how effectively you convert new users into engaged users who experience your product's value.
Good activation rates range from 20-40%, depending on product complexity and onboarding flow.
Trial Conversion = (Paid Conversions ÷ Trial Starts) × 100
Most subscriptions are won or lost in the trial. Skok cites 15-20% as the product-market-fit signal for B2B SaaS — below it, fix onboarding and paywalls before scaling acquisition.
B2B SaaS: 15-20% healthy, above 20% strong. Mobile subscription apps run hotter (Adapty: 30-50% D0). Test one paywall variable at a time — Adapty's rule.
ROAS = Revenue from Ads ÷ Ad Spend
Measures the effectiveness of advertising campaigns and helps optimize marketing budget allocation.
Minimum ROAS of 4:1 is generally considered good. Higher is better, but varies by industry.
CPA = Total Campaign Cost ÷ Number of Acquisitions from Campaign
Helps optimize marketing channels and campaigns by identifying the most cost-effective acquisition sources.
Should be significantly lower than Customer Lifetime Value. Aim for CPA < LTV/3.
LTV / CAC Ratio = Customer Lifetime Value ÷ Customer Acquisition Cost
Indicates the profitability and sustainability of your customer acquisition strategy. A healthy ratio shows you're generating more value from customers than you spend acquiring them.
Below 1: unsustainable. 1–3: weak, viability at risk. 3–5: healthy minimum. 5–7: strong, headroom to scale. 7+: best-in-class — may be under-investing in growth.
Payback Period = CAC ÷ (ARPU × Gross Margin %)
Directly drives cash flow. Long payback periods tie up capital and force outside funding to scale; short payback compounds growth from internal cash.
≤7 months: healthy. 8–12: watch — capital-intensive but workable. >12 months: anemic, profitability suffers. Front-load annual contracts to shorten the window.
Measure how actively users interact with your product
DAU = Count of unique users who performed key actions in a 24-hour period
Indicates product stickiness and daily engagement levels. Critical for understanding user behavior patterns.
Varies by product type. Social apps: 10-20% of MAU. SaaS tools: 5-15% of total users.
MAU = Count of unique users who performed key actions in a 30-day period
Shows overall product adoption and user base health. Key metric for subscription businesses.
Growth rate of 10-15% month-over-month is healthy for early-stage products.
DAU/MAU Rate = (Average DAU in month ÷ MAU) × 100
Measures how frequently users return to your product. Higher ratios indicate better engagement and habit formation.
20%+ is excellent, 10-20% is good, below 10% indicates low stickiness.
CTR = (Number of Clicks ÷ Number of Impressions) × 100
Measures the effectiveness of your content, emails, ads, and in-app elements in driving user action.
Email: 2-3%, Display ads: 0.5-1%, Search ads: 2-5%. Varies significantly by industry.
Conversion Rate = (Number of Conversions ÷ Total Visitors) × 100
Critical for measuring funnel effectiveness and optimizing user journey to drive business outcomes.
SaaS free trial to paid: 15-20%. E-commerce: 2-3%. Landing pages: 2-5%.
TTFV = Timestamp of first meaningful action − Timestamp of signup
Drives activation, trial conversion, and long-term retention. Shortening TTFV usually has a higher ROI than tweaking pricing or paywall copy.
B2B SaaS: under 1 hour for simple tools, under a day for complex ones. Consumer apps: target the first session. Track the median, not the average — outliers hide the real friction.
Bounce Rate = (Single-page Sessions ÷ Total Sessions) × 100
High bounce on key acquisition pages (landing, pricing, signup) signals message-match or load-speed problems. Track per page, not site-wide — averages hide where the real leaks are.
Landing pages: 60-90% typical, under 50% strong. SaaS homepages: 40-60%. A spike on a specific page is a stronger signal than the absolute number.
Track how effectively you generate revenue from your user base
Total Revenue = Sum of all revenue streams (subscriptions, one-time purchases, etc.)
The ultimate measure of business success and growth. Essential for tracking overall business performance.
Focus on consistent growth trends. Healthy SaaS companies grow revenue 20-100% year-over-year.
ARPU = Total Revenue ÷ Total Number of Users
Shows the value each user brings to your business and helps identify opportunities for revenue optimization.
Varies widely by industry. B2B SaaS: $50-500/month. Consumer apps: $1-20/month.
LTV = (Average Revenue Per User × Gross Margin %) ÷ Churn Rate
Helps determine how much you can spend on acquisition and guides long-term business strategy.
Should be at least 3x your Customer Acquisition Cost for sustainable growth.
Gross Margin = ((Revenue - Cost of Goods Sold) ÷ Revenue) × 100
Indicates pricing power and operational efficiency. Higher margins provide more resources for growth.
SaaS companies typically achieve 70-85% gross margins. Below 70% may indicate pricing or cost issues.
MRR = Number of Customers × Average Revenue Per Customer Per Month
Foundation of SaaS business planning. Provides predictability for forecasting and investment decisions.
Healthy SaaS companies grow MRR by 10-20% month-over-month in early stages.
New MRR = Sum of first-month subscription value of customers acquired this period
The acquisition output of marketing and sales spend, isolated from existing customer activity. Track alongside Expansion and Churned MRR to see whether growth is real or papered over.
Track its ratio to S&M spend — that drives the Magic Number. Steady week-over-week growth matters more than the absolute number.
Churned MRR = Sum of MRR from customers who fully cancelled + MRR reduction from downgrades
The denominator of Revenue Churn and the negative leg of Net New MRR. Distinguishing voluntary cancellations from involuntary (failed payments) reveals whether the issue is product or billing.
Should be under 2% of starting MRR monthly. Pair with Quick Ratio — if New + Expansion MRR doesn't cover Churned MRR by 4×, growth is inefficient.
Net New MRR = New MRR + Expansion MRR − Churned MRR − Contraction MRR
The single number that says whether you grew, stayed flat, or shrank this month. Splitting it into the components (new, expansion, churned) is the only way to know which lever needs work.
Positive and accelerating is healthy. Flat or declining is a leading indicator before MRR growth visibly stalls — act on it before the headline number reflects it.
Expansion MRR = MRR from plan upgrades + add-on modules + usage overage from existing customers in the period
The single lever that can push Net Revenue Retention above 100% — Skok's 'negative churn'. Cross-sell typically has 4-6× lower CAC than new logo acquisition, so expansion is the most efficient revenue you can generate.
Healthy SaaS: 20-40% of New MRR comes from expansion. Best-in-class: 50%+. Drive it through usage-based pricing, seat expansion triggers, and clearly tiered plans.
Measure how well you retain customers and reduce churn
Retention Rate = ((Customers at End - New Customers) ÷ Customers at Start) × 100
Indicates product-market fit and customer satisfaction. Higher retention leads to better unit economics.
Monthly retention: 90%+ is excellent. Annual retention: 80-90% is good for B2B SaaS.
Customer Churn Rate = (Customers Lost ÷ Customers at Start of Period) × 100
Measures fit and satisfaction. Track separately from Revenue Churn — losing 9 small customers vs. 1 large customer produces very different financial outcomes.
Skok: under 2% monthly is healthy; above 2% signals a fundamental issue. Annual: <10% excellent for B2B SaaS.
GRR = ((Starting MRR − Churned MRR − Contraction MRR) ÷ Starting MRR) × 100
Strips out the expansion-revenue tailwind that flatters NRR. GRR is capped at 100% — it tells you the real strength of your retention before any upsell.
85%+ is healthy; 90%+ strong; 95%+ best-in-class. Combine with NRR to see how much of your reported retention comes from expansion vs. raw stickiness.
DN Retention = (Cohort users active on day N ÷ Cohort size) × 100
Skok's most-recommended diagnostic. Reveals whether you lose users in the first two months (onboarding/value-prop issue) or churn stabilizes — and whether product or onboarding changes actually moved a recent cohort.
Varies sharply by category. Consumer mobile: D1 ~30-40%, D7 ~15-25%, D30 ~10%. B2B SaaS: focus on Month-1 / Month-3 / Month-6 retention curves instead. Look for a flattening curve — that's where churn stabilizes.
Revenue Churn = (Churned MRR ÷ MRR at Start of Period) × 100
Captures the financial impact of churn, which customer count alone misses. Negative net churn (expansion > churn) compounds growth — Skok's classic illustration: 3% negative churn yields 3× revenue over 40 months vs. flat churn.
Under 2% monthly is healthy. Net Revenue Retention (NRR) > 100% indicates negative churn — best-in-class SaaS targets 110-130% NRR.
Reactivation Rate = (Reactivated Customers ÷ Total Churned Customers) × 100
Shows the effectiveness of win-back campaigns and indicates remaining product value for former customers.
5-15% reactivation rate is typical. Higher rates suggest strong underlying product value.
CLV = (Average Purchase Value × Purchase Frequency × Customer Lifespan) - Acquisition Cost
Helps prioritize customer segments and determine appropriate acquisition and retention investments.
CLV should be 3-5x higher than Customer Acquisition Cost for sustainable growth.
Understand customer satisfaction and loyalty levels
CSAT = (Number of Satisfied Customers ÷ Total Survey Responses) × 100
Directly correlates with retention, loyalty, and word-of-mouth referrals. Essential for product improvement.
80%+ is excellent, 70-79% is good, below 70% indicates significant improvement needed.
NPS = % Promoters (9-10) - % Detractors (0-6). Passives (7-8) are excluded.
Predicts business growth through customer advocacy and helps identify areas for improvement.
50+ is excellent, 30-50 is good, 0-30 needs improvement, below 0 indicates serious issues.
Track the financial health and sustainability of your business
Burn Rate = (Starting Cash - Ending Cash) ÷ Number of Months
Critical for cash flow management and determining how long your business can operate with current funding.
Should align with growth milestones. High burn acceptable if driving proportional growth.
Runway = Current Cash Balance ÷ Monthly Burn Rate
Essential for planning fundraising, cost management, and strategic decisions about growth vs. profitability.
Maintain at least 12-18 months of runway. Start fundraising when you have 6-9 months left.
NRR = ((Starting MRR + Expansion MRR − Contraction MRR − Churned MRR) ÷ Starting MRR) × 100
When NRR exceeds 100%, expansion revenue outpaces churn — Skok's classic 'negative churn' effect compounds growth without new logos. A 3% negative churn outperforms a flat cohort by 3× over 40 months.
Below 90%: alarm — revenue leaks faster than expansion fills it. 90-100%: acceptable but flat. 100-110%: good. 110-130%: best-in-class SaaS. Push expansion (seats, usage tiers, modules) to break past 100%.
Quick Ratio = (New MRR + Expansion MRR) ÷ (Churned MRR + Contraction MRR)
Separates apparent revenue growth from underlying efficiency. A high quick ratio means each dollar of churn is more than offset by new or expansion revenue — efficient growth that won't stall when acquisition slows.
Below 1: alarm, you're losing more than you're adding. 1–2: weak. 2–4: workable. 4+: ideal efficient growth (Mamoon Hamid's threshold).
Magic Number = (Net New ARR × 4) ÷ Prior Quarter Sales & Marketing Spend
Tells you whether to step on the gas or rebuild the engine. Above 1 means S&M pays back inside a year — invest more. Below 0.5 means the go-to-market model is broken; more spend won't help.
Above 1: double down. 0.5–1: acceptable, optimize before scaling. Below 0.5: broken GTM — diagnose ICP, channel mix, or sales productivity first.
Revenue Growth Rate = ((Current Period Revenue - Previous Period Revenue) ÷ Previous Period Revenue) × 100
Key indicator of business momentum and market traction. Critical for investor relations and strategic planning.
Early-stage: 15-25% monthly growth. Growth-stage: 100%+ annual growth. Mature: 20-40% annual growth.
COGS = Direct Materials + Direct Labor + Direct Overhead Costs
Essential for calculating gross margin and understanding the direct profitability of your offering.
SaaS COGS should be 15-30% of revenue. Lower is better for scalability.
Gross Margin = ((Revenue - COGS) ÷ Revenue) × 100
Indicates pricing power and operational efficiency. Higher margins provide more resources for growth and profitability.
SaaS: 70-85%, E-commerce: 20-40%, Services: 50-70%. Higher margins indicate better scalability.
Net Profit Margin = (Net Income ÷ Total Revenue) × 100
Ultimate measure of business profitability and financial efficiency. Shows the bottom-line impact of all business decisions.
10-20% is healthy for mature companies. Early-stage companies often have negative margins while investing in growth.
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