# CAC Calculator

- **URL:** https://codeasystem.com/calculators/business/cac-calculator/
- **Category:** business
- **Description:** Work out the fully-loaded cost of acquiring a customer by dividing total sales and marketing spend by new customers won.
- **Primary output:** Customer acquisition cost (CAC): $200.00

## Inputs
- Total sales & marketing spend (name: `spend`, type: number, prefix: $, example: 24000)
- New customers acquired (name: `customers`, type: number, example: 120)

## Outputs
- Customer acquisition cost (CAC): $200.00
- Total spend: $24,000.00
- New customers acquired: 120

## Formula / methodology
```
CAC = Total sales & marketing spend / New customers acquired
```

Customer acquisition cost spreads everything you spent winning business; advertising, sales team compensation, commissions, software, agency retainers; evenly across the customers gained in the same period. Blended CAC averages across all channels; dividing spend and customers per channel gives the per-channel versions that reveal where money actually works.

## Assumptions & limitations
- Spend and customers cover the identical time window.
- Fully-loaded costs including salaries and tooling, not just media spend.
- Organic customers included in the count will dilute CAC; note them when comparing channels.

## How to use
1. **Total the spend**; Sum ads, sales salaries and commissions, tools and agency fees for one period.
2. **Count new customers**; First-time buyers or signed contracts in that same period; existing-customer revenue does not belong here.
3. **Read CAC**; Pair it with CLV to check whether each customer relationship repays its acquisition cost.

## Example
Spending $24,000 on sales and marketing to win 120 customers means each one cost $200 to acquire.

Result for these inputs:

```
Customer acquisition cost (CAC): $200.00
```

## About this calculator
### The undercounting trap

Teams habitually report “CAC” as ad spend alone, ignoring the salesperson’s salary, the CRM subscription and the founder weeks spent on partnerships. A $150 media-only CAC becomes $400 fully loaded; and suddenly last quarter’s “profitable growth” never was. Load every cost, then judge.

### Blended vs paid CAC

- Blended CAC: all spend ÷ all new customers; reflects reality including organic wins.
- Paid CAC: paid spend ÷ paid-attributed customers; sharper signal for channel decisions.
- Payback period: CAC ÷ monthly gross profit per customer tells you when each cohort breaks even.

## FAQs
### Should founder sales time count?

Ideally yes, valued at market salary. Excluding it flatters early-stage CAC and breaks comparisons once you hire a real sales team.

### What is a good CAC?

There is no absolute number; only relative to lifetime value. The classic benchmark wants LTV ≥ 3× CAC with payback inside 12 months for SaaS.

### Does CAC include referrals?

Referral rewards and incentives do; the organic word-of-mouth customers they trigger still land in the blended denominator unless you separate channels.

## Related calculators
- [LTV:CAC Ratio Calculator](https://codeasystem.com/calculators/business/ltv-to-cac-ratio-calculator/)
- [Customer Lifetime Value Calculator](https://codeasystem.com/calculators/business/customer-lifetime-value-calculator/)
- [ROAS Calculator](https://codeasystem.com/calculators/marketing/roas-calculator/)
- [Profit Margin Calculator](https://codeasystem.com/calculators/business/profit-margin-calculator/)

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Last updated: 2026-08-23 · Version: 1.0.0 · [HTML version](https://codeasystem.com/calculators/business/cac-calculator/)