The Customer Lifetime Value (CLV) Calculator estimates the total value a customer brings to a business over their relationship. Users input the **average purchase value**, **purchase frequency**, and **customer lifespan** (in periods, e.g., years). Optionally, you can add a **gross margin percentage** to focus on profit rather than revenue. When you click “Calculate,” the calculator multiplies all values (with margin as a percentage) to estimate CLV. If the margin is omitted, it defaults to 100%. The CLV is then displayed in dollars.