Track unit profit, LTV, CAC, and payback. Test pricing, costs, retention, and sales efficiency instantly. Build smarter forecasts using structured inputs and visual outputs.
The page uses a single-column flow overall, while the form fields shift to three columns on large screens, two on smaller screens, and one on mobile.
| Example metric | Example value | Why it matters |
|---|---|---|
| Selling price per unit | $120.00 | Sets top-line revenue per unit sold. |
| Units per order | 1.50 | Expands order value without adding more transactions. |
| Orders per customer per year | 4.00 | Controls customer repeat purchase intensity. |
| Variable cost per unit | $42.00 | Directly affects gross margin and scale efficiency. |
| CAC | $55.00 | Measures acquisition efficiency against lifetime value. |
| Retention months | 18 | Drives the duration of contribution recovery. |
| Discounted LTV | Calculated by the tool | Adjusts future contribution for time value. |
| Payback period | Calculated by the tool | Shows how quickly CAC is recovered. |
Revenue per order = Selling price per unit × Units per order
This converts the product price and basket size into one transaction value.
Annual revenue per customer = Revenue per order × Orders per customer per year
This estimates yearly top-line revenue for one customer.
Annual variable stack = COGS + Shipping + Packaging + Payment processing + Returns + Support + Commission
These are the recurring costs that grow with each customer or order.
Annual contribution after allocated overhead = Annual revenue per customer − Annual variable stack − Allocated overhead per customer per year
This is the annual profit contribution created by one customer before corporate fixed overhead and before CAC recovery.
Discounted LTV = Σ [Monthly contribution per customer ÷ (1 + monthly discount rate)t]
The sum runs from month 1 through the retention period. It discounts future contribution into present value.
Net value after CAC = Discounted LTV − CAC
Positive values indicate the customer creates more value than acquisition cost.
LTV:CAC = Discounted LTV ÷ CAC
Many teams target a ratio above 3.0, but acceptable thresholds vary by model and growth stage.
Payback months = CAC ÷ Monthly contribution per customer
Break-even customers = Monthly fixed overhead ÷ Monthly contribution before allocated overhead
These show recovery speed and the scale needed to cover monthly fixed overhead.
Unit economics measures the profit contribution from one customer, order, or unit. It connects revenue, variable costs, CAC, and retention into a decision-ready profitability view.
Discounted LTV recognizes that future cash flows are worth less than current cash flows. It is more realistic when retention extends over many months.
Many operators look for ratios above 3.0. Early-stage businesses may accept lower ratios during growth, while mature businesses often demand stronger efficiency.
Long payback means acquisition cash returns slowly. That can increase funding pressure, reduce reinvestment speed, and make the model more fragile during downturns.
Yes, but use it carefully. This calculator separates allocated overhead per customer from monthly fixed overhead used for break-even customer estimates.
Yes. Ecommerce teams can use order-based inputs directly. B2B teams can treat the unit as seats, contracts, or recurring order bundles.
Returns reduce realized value. Ignoring them can overstate margin, payback speed, and lifetime value, especially in categories with high return behavior.
Cohort metrics help you compare channels, campaigns, territories, and pricing plans. They show how customer quality scales across acquisition volume.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.