What Is LTV in Facebook Ads? (2026 Definition)

Quick Answer

LTV (lifetime value), also called CLV, is the total gross profit a customer is expected to generate across the entire relationship with your business, used to set the maximum sustainable Facebook Ads CAC.

Formula and Example

Simple formula: LTV = Average order value x Gross margin x Average purchases per customer over their lifetime. Example: GBP 60 AOV x 40% margin x 5 orders = GBP 120 LTV.

Why It Matters

LTV is the ceiling on what you can afford to spend acquiring a customer through Meta. Without it, every CAC and ROAS conversation is guesswork. Brands that know their LTV can confidently outbid competitors on Meta's auction because they know exactly when each customer will pay back the spend.

How to Use It

Calculate LTV by cohort, by product line and by acquisition channel — they will all differ. Use 12-month LTV as the headline number for budgeting; use 3-month LTV for live campaign decisions. Tie your max CAC to LTV: most healthy DTC brands aim for LTV/CAC of 3 or higher.

Common Mistakes

Using revenue LTV instead of gross profit LTV — revenue ignores cost of goods. Another mistake is calculating LTV as one big average when cohorts differ wildly. Always cohort.

How Pix-Vu helps

LTV is one of dozens of metrics and tactics shaping every Facebook Ads campaign. The fastest way to learn what works — without burning through your own budget — is to study what's already working for other brands. Pix-Vu lets you search the Meta Ad Library, track competitor ad creative across Facebook and Instagram, save winning hooks and angles, and watch how successful advertisers iterate over time. Whether you're trying to lower CPMs, lift CTR or just figure out which creative format your category responds to, seeing live ads in action beats reading definitions alone. Start spying on your competitors at https://pix-vu.com.