The E-Commerce Unit Economics & CAC/LTV Calculator is designed to give e-commerce founders, operators, and investors a clear, data-driven view of customer acquisition efficiency and long-term customer value. Whether you are running a DTC brand, a Shopify store, an Amazon storefront, or a multi-channel retail operation, this model helps you answer the fundamental questions that drive sustainable growth:

•       How much does it truly cost to acquire a customer across each marketing channel?

•       What is the lifetime value of your customers, and how does it compare to acquisition cost?

•       Which channels deliver the best return on ad spend and the healthiest unit economics?

•       At what point does your business achieve CAC payback, and how does that change under different scenarios?

•       How do changes in retention, average order value, and purchase frequency impact long-term profitability?

The model is built to be straightforward enough for founders evaluating their first marketing budget, yet robust enough for CFOs and investors conducting due diligence on customer economics. It bridges the gap between high-level KPI dashboards and detailed financial projections by providing a comprehensive, assumption-driven framework.