SaaS Pricing and Unit Economics Calculator
Model monthly revenue, contribution, operating surplus and break-even customers from your pricing and cost assumptions.
Sensitivity to your assumptions
| Price scenario | Monthly price | Monthly revenue | Monthly surplus / loss |
|---|---|---|---|
| 20% lower price | 40 | 4,000 | 2,000 |
| Entered price | 50 | 5,000 | 3,000 |
| 20% higher price | 60 | 6,000 | 4,000 |
How the calculation works
Contribution per customer = price − variable cost. Monthly surplus = contribution per customer × customers − fixed costs. Break-even customers = fixed costs ÷ contribution per customer, rounded up.
Worked example
At $50 per month, 100 customers, $10 variable cost per customer and $1,000 fixed costs, monthly revenue is $5,000 and modeled surplus is $3,000. The model breaks even at 25 customers.
Assumptions and limitations
Use consistent monthly amounts. Include expenses you want modeled in your inputs. Taxes, financing, churn, new-customer acquisition costs and one-time expenses are not added automatically. A non-positive contribution per customer cannot cover positive fixed costs; no finite break-even is shown in that case.
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