# What are Unit Economics?

Unit economics measure the profitability of your business per unit — per customer, per transaction, per product sold — instead of looking at the total. They tell you whether you make or lose money on each one, before volume masks the problem. A business can grow in total sales and lose money on every customer at the same time; unit economics is what exposes that contradiction.

## Where the concept comes from

The idea of analyzing margin per unit comes from classic cost accounting, long before startups existed. What made it standard in tech was David Skok, an investor at Matrix Partners, who in 2010 published the "SaaS Metrics 2.0" framework on his For Entrepreneurs blog with a rule the whole industry still uses today: LTV (customer lifetime value) needs to be at least 3 times CAC (acquisition cost) for the business to be healthy. That 3:1 ratio is still the reference cited by venture capital funds worldwide.

## Why it's not widely used in LATAM yet

In the United States and Europe, measuring unit economics is a mandatory step before raising an investment round. In Latin America the concept still hasn't taken hold: most businesses (even ones already billing well) don't calculate it formally, and many founders know the individual metrics (CAC, LTV, churn) without having connected that together they form a complete diagnosis. It's a real window of opportunity for whoever adopts it before their competition — and the reason this calculator exists.

## What it's called in each language

| Language / region | What it's called | Note |
|---|---|---|
| English (global) | Unit Economics | The standard term — how anyone who already knows the concept searches for it (funds, founders with VC exposure). |
| Spanish (LATAM and Spain) | Unit Economics (untranslated) | The English term dominates even in fully Spanish-language media. Translations ("economía unitaria", "economía por unidad") only appear as a clarification, never as the primary term. |
| Portuguese (Brazil) | Economia Unitária / Economia por Unidade | Coexists with the English "Unit Economics" — neither clearly dominates. |

## How to implement it step by step

1. **Choose your unit:** customer, transaction, order, student — depends on your business model.
2. **Calculate the margin for that unit:** revenue it generates minus all direct costs of serving it.
3. **Calculate how much it cost to acquire it** (CAC): marketing + sales for the period ÷ new units acquired.
4. **Compare both numbers.** If LTV doesn't beat CAC by several times over, the business destroys value even as it grows in volume.
5. **Repeat it every month.** Unit economics changes with pricing, customer mix, and acquisition cost.

The [calculator](https://www.uniteconomicscalculator.com/en/) runs these calculations automatically for your specific vertical, with LATAM benchmarks.

## Impact by business vertical

- **SaaS:** The central indicator is LTV:CAC. With low churn and account expansion (NRR > 100%), a customer's value can be worth several times what it cost to acquire them — but only if you measure it per customer, not on total MRR.
- **Fintech:** Fraud and defaults "eat" margin before it ever shows up in the P&L. Without looking at the unit economics per user, a business can look profitable on paper while losing money on every transaction.
- **E-commerce:** GMV (total sales) is a vanity metric if the contribution margin per order is negative. Shipping, fulfillment, and returns eat the margin unit by unit, not in the aggregate.
- **Proptech:** The gap between physical and economic occupancy ("full" units vs. rent actually collected) is, in practice, unit economics applied to real estate.
- **Edtech:** A course's production cost is amortized per student. If actual enrollment falls short of what was expected, the cost per unit spikes and can turn a profitable course into one that loses money.

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[Calculate for free on Unit Economics Calculator](https://www.uniteconomicscalculator.com/en/) — multi-vertical unit economics diagnosis with LATAM benchmarks. Free, no signup. See also the [full metrics glossary](https://www.uniteconomicscalculator.com/en/glossary/).

*También disponible en [español](https://www.uniteconomicscalculator.com/glosario/que-son-unit-economics.md).*