Every funnel produces data. The problem is that most entrepreneurs look at the wrong data: impressions, followers, likes. These are vanity metrics — numbers that feel good but say nothing about business health.

Here are the six metrics that actually matter.

1. Conversion Rate (CR)

The percentage of people who complete the desired action at each stage. It's the most important metric because it measures the effectiveness of every single funnel step.

Formula: (Completed actions / Visitors) × 100

Benchmark: 1-3% e-commerce, 5-15% B2B lead gen, 20-40% optin with lead magnet

If CR is low, the problem is almost always the offer, copy, or audience — not the traffic.

2. Cost Per Lead (CPL)

How much you spend to get each qualified contact. CPL alone means nothing: you need to compare it to the value that lead generates over time.

Formula: Ad spend / Number of leads

Practical rule: Sustainable CPL = maximum 20-30% of the average first purchase value

3. Return on Ad Spend (ROAS)

The multiplier of your advertising budget. A 3× ROAS means every $1 spent on ads generates $3 in revenue.

Formula: Revenue generated by ads / Ad spend

Watch out: ROAS and profit aren't the same thing. With 40% margins, you need 2.5× ROAS to break even. With 20% margins, you need 5×+.

4. Average Order Value (AOV)

The average value per transaction. Increasing it is the fastest way to improve ROAS without increasing traffic or lowering costs.

Formula: Total revenue / Number of orders

A well-placed post-purchase upsell can increase AOV by 30-60% without increasing CAC.

5. Lifetime Value (LTV)

The total value a customer generates over time — not just on the first purchase. It's the metric that determines how much you can afford to spend to acquire them.

Formula: AOV × Purchase frequency × Average relationship duration

Golden rule: LTV must be at least 3× CAC for a sustainable business.

6. Cost per Acquisition (CAC)

The real cost of acquiring a paying customer. Common mistake: only including media budget. Real CAC includes ads, tools, team time, platform fees.

Formula: Total spend (ads + operational) / Number of customers acquired

How to use them together

Metrics only make sense in relation to each other. The framework to keep in mind:

  • LTV / CAC must be ≥ 3 (sustainable business)
  • ROAS must cover margins + reinvestment
  • CPL must stay below the long-term lead value

In FunnelManager you can enter all these numbers and automatically see if your funnel is in profit, break-even, or loss — and where to act to reverse the trend.