What Is Customer Lifetime Value (LTV)?
Customer Lifetime Value (LTV, sometimes written CLV) is the total revenue a single customer generates over their entire relationship with your store. It is the number that determines how much you can profitably spend to acquire a customer — and which customers are worth investing in to keep.
Most WooCommerce store owners know their Average Order Value (AOV) off the top of their head, but far fewer know their LTV — even though it’s the more important number for marketing budgets, retention strategy, and understanding which customers actually drive growth.
The LTV Formula
The standard formula is:
LTV = Average Order Value × Purchase Frequency × Average Customer LifespanHere’s a worked example for a WooCommerce store:
- Average Order Value: $60
- Purchase Frequency: 4 orders per year
- Average Customer Lifespan: 2.5 years
LTV = $60 × 4 × 2.5 = $600That customer is worth $600 over their lifetime — not $60. Any acquisition or retention decision based on a single order’s value is working with roughly 10% of the real picture.
LTV:CAC — The Ratio That Decides If Your Growth Is Sustainable
Customer Acquisition Cost (CAC) is what it costs — in ads, discounts, and sales effort — to win one new customer. Comparing LTV to CAC tells you whether your growth is actually profitable:
LTV : CAC ratio = LTV ÷ CAC- Below 1:1 — you lose money on every customer you acquire
- Around 1:1 to 2:1 — break-even at best once overheads are included
- 3:1 or higher — generally considered healthy; you can reinvest profitably in growth
If your LTV:CAC ratio is low, you have two levers: lower CAC (harder, and often more expensive over time as ad costs rise) or raise LTV through retention, upsells, and repeat purchase rate. For most established stores, improving LTV is the faster and cheaper lever.
Why a Single LTV Number Isn’t Enough
A store-wide average LTV hides more than it reveals. The real value comes from segmenting LTV by:
- Acquisition channel — customers from email or organic search often have a higher LTV than those from paid social, even if their first order is the same size
- First product purchased — some products are reliable gateways to repeat purchases, others are one-and-done
- Geography — shipping costs, return rates, and repeat behaviour can vary significantly by country or region
- New vs returning customer cohorts — tracking how LTV for each month’s new customers evolves shows whether your funnel is attracting better or worse customers over time
Once you can see LTV by segment, marketing spend decisions stop being guesswork — you can confidently spend more to acquire customers from the channels and products that produce your highest-value buyers.
Common Mistakes When Calculating LTV
- Using AOV as a proxy for LTV — they answer different questions; AOV is per-order, LTV is per-customer over time
- Ignoring refunds and discounts — LTV should be based on net revenue, not gross, or it overstates true customer value
- Using a lifespan that’s too short — for newer stores, “average lifespan” data is thin; use cohort data from your earliest customers as a more realistic baseline rather than guessing
- Calculating it once and never again — LTV changes as your product, pricing, and customer mix evolve; it needs to be monitored, not calculated once
Tracking LTV Automatically with SaleTides
SaleTides calculates LTV directly from your WooCommerce order history and breaks it down by customer segment — so you can see which channels, products, and cohorts produce your most valuable customers without exporting a single CSV.
See SaleTides customer analytics →
Key Takeaways
- LTV = Average Order Value × Purchase Frequency × Average Customer Lifespan
- Compare LTV to CAC — a ratio of 3:1 or higher is generally healthy
- Improving retention (LTV) is usually faster and cheaper than reducing acquisition cost (CAC)
- Segment LTV by channel, product, and geography to guide where you spend marketing budget
- Use net revenue, not gross, when calculating LTV
