What Is Unit Economics?
Unit economics measures the revenue and cost of a single customer or sale, to show whether the business makes money on each one.
How it works
Pick the unit that fits your business: a customer, an order, a subscription or a delivery. Then compare what you earn from one unit with what it costs to win and serve it. The formula in words: contribution per unit equals revenue per unit minus the direct costs of delivering it. For subscription companies, founders often compare customer lifetime value with customer acquisition cost.
If each unit loses money, growth makes losses bigger. If each unit earns money, growth can eventually cover fixed costs such as rent and salaries.
Example
For example, a meal-kit business sells a box for $60. Ingredients and packaging cost $30, shipping costs $12 and payment fees cost $3. The contribution is $60 minus $45, or $15 per box. If it spends $45 on marketing to win a customer who orders only one box, it loses $30 on that customer. If the customer orders eight boxes, it earns $120 against $45 of acquisition cost.
Why founders care
Unit economics answers a simple question: does selling more make us better or worse off? Investors look at it, and so should you before spending on growth. It is also a way to find the lever to fix, whether price, cost, retention or acquisition channel.
Common mistakes
- Leaving out costs such as support, returns or payment fees.
- Using revenue instead of profit per unit.
- Assuming costs will fall at scale without a clear reason.
Frequently asked questions
What are good unit economics?
Each customer or order earns more than it costs to win and serve, and the gap pays back within a time you can afford. What counts as good varies by industry, so compare to similar businesses.
Do unit economics matter early on?
Yes, even with rough numbers. Early data is noisy, but checking per-unit math before scaling spend helps you avoid growing a model that loses money on every sale.
Related terms
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General information, not legal, tax or financial advice. Reviewed 11 November 2026.