Customer Lifetime Value (CLV) Calculator

Step-by-Step Guide

1. 1Choose a Calculation Method: Select Basic, Margin-Adjusted, Subscription, or SaaS. Pick the one that matches how your customers generate revenue — by repeat purchase, monthly subscription, or predictive churn-based modelling.
2. 2Enter Your Business Inputs: For Basic/Margin: enter Average Order Value, Purchase Frequency per year, and Customer Lifespan in years. For Subscription: monthly revenue per customer and lifetime in months. For SaaS: ARPU and Monthly Churn Rate.
3. 3Add Gross Margin (Recommended): Enter your gross margin percentage to calculate profit-adjusted CLV rather than revenue CLV. This is the figure that matters for profitability decisions — especially for businesses with significant COGS or service delivery costs.
4. 4Add CAC (Optional): Enter your Customer Acquisition Cost to unlock Net CLV and CAC Payback Period outputs — showing exactly how much each customer is worth after acquisition cost, and how many months to recover that cost.
5. 5Read and Export Results: CLV, Net CLV, annual value, monthly value, and payback period update in real time. Export as CSV or TXT, copy the summary to clipboard, or share the result via the permanent URL.

Key Features

• ✓Four CLV formulas — Basic, Margin-Adjusted, Subscription, SaaS
• ✓Real-time calculation as you type
• ✓Performance badge: Excellent / Good / Average / Low / Very Low
• ✓Net CLV after deducting Customer Acquisition Cost
• ✓CAC Payback Period in months
• ✓Annual and monthly value breakdowns
• ✓12 currency options (USD, EUR, GBP, INR, and more)
• ✓Step-by-step formula breakdown shown
• ✓Export full report as CSV or TXT
• ✓Shareable URL — every calculation gets a permanent link
• ✓Calculation history saved locally (up to 20 entries)
• ✓100% browser-based — no data leaves your device

Pro Tips

• 💡Always use Margin-Adjusted CLV, not Basic CLV, for profitability decisions. Basic CLV is revenue — it tells you how much a customer spends. Margin-adjusted CLV is profit — it tells you how much you actually keep. These two figures can differ by 50–80%, and using the wrong one leads to drastically overstated acquisition budgets.
• 💡For SaaS, reducing churn is more powerful than increasing ARPU. In the SaaS formula, CLV = (ARPU × Margin) ÷ Churn. Reducing churn from 5% to 3% increases CLV by 67%. Increasing ARPU by the same relative amount increases CLV by the same percentage — but churn reductions are usually more achievable and sustainable at scale.
• 💡Segment CLV by acquisition channel, not just in aggregate. Customers acquired through referral, organic search, and paid social typically have dramatically different CLVs due to differences in intent, product fit, and engagement. Channel-level CLV determines which acquisition sources are truly profitable — blended CLV hides the differences.
• 💡Set your target CPA at 25–33% of CLV, not 100%. Spending 100% of CLV on acquisition leaves nothing for operating costs, refunds, or profit. A CPA of 1/3 CLV with a 3× LTV:CAC ratio is the standard benchmark for healthy, scalable growth.
• 💡Recalculate CLV annually or when key inputs change. Purchase frequency, gross margin, and churn rate all shift over time. An LTV figure from 18 months ago during a high-growth phase may significantly overstate current customer value if retention has degraded.

Common Mistakes to Avoid

• ✕Don't use theoretical customer lifespan inputs. Inputting '10 years' because it sounds plausible produces a CLV figure that is unrealistic and will lead to overspending on acquisition. Use actual cohort retention data to derive average customer lifespan — most businesses find it is significantly shorter than their initial estimate.
• ✕Don't confuse CLV with projected revenue. CLV is an average, not a guarantee. Averaging across all customers means half your customers will be worth less than your CLV figure and half will be worth more. Always apply CLV as a portfolio-level benchmark, not a forecast for individual customers.
• ✕Don't calculate a single CLV for the entire business without segmenting by product line or tier. Enterprise customers, SMB customers, and self-serve customers in the same business can have CLVs that differ by 10–50×. A single blended CLV produces acquisition budget guidance that overpays for low-value segments and underpays for high-value ones.
• ✕Don't ignore the CAC Payback Period when assessing channel viability. A 36-month CLV with a 24-month CAC payback period means you are cash-flow negative on every new customer for two years. In fast-growing businesses with capital constraints, payback period can matter more than raw CLV ratio.