Metrics
Customer Lifetime Value (LTV)
Customer lifetime value is the total profit a brand expects from a customer across the relationship. For consumable brands, LTV is driven mostly by reorder frequency and retention — not the first order — which is why shortening reorder cycles raises LTV faster than discounting acquisition.
What is Customer Lifetime Value (LTV)?
Customer lifetime value is the total profit a brand expects to earn from a customer across the entire relationship. It reframes a customer not as a single transaction but as a stream of purchases and margin over time. For consumable brands, LTV is the metric that determines how much can responsibly be spent to acquire a customer and still grow profitably.
A common model is: LTV = average order value × purchase frequency × gross margin × average customer lifespan. The frequency and lifespan terms are what make LTV powerful — they capture the compounding effect of customers who keep coming back, which a single-order view completely misses.
Crucially, for consumable brands LTV is driven mostly by reorder frequency and retention rather than the first order. Acquisition often only breaks even on order one, so the real profit lives in the reorders that follow. That's why shortening reorder cycles tends to raise LTV faster than discounting acquisition ever could.
How do you calculate Customer Lifetime Value?
A widely used formula combines order value, frequency, margin, and lifespan:
LTV = average order value × purchase frequency × gross margin × average customer lifespan
Worked example: a brand has an average order value of $40, customers buy 4 times per year, gross margin is 60%, and the average customer stays 3 years. That's $40 × 4 × 0.60 × 3 = $288 in lifetime profit per customer. Notice how sensitive the result is to frequency and lifespan: raising purchase frequency from 4 to 5 orders per year lifts LTV to $360 without changing acquisition spend at all.
Why it matters for Shopify brands
LTV is the number that governs sustainable growth. It sets the ceiling on acquisition cost — a brand can only spend to acquire customers up to a fraction of what those customers are worth over time. The common LTV-to-CAC benchmark of roughly 3:1 exists because brands need a comfortable margin between what a customer returns and what they cost to win.
For consumable brands, the lever that moves LTV most is reorder behavior. Because the frequency term compounds across the relationship, getting customers to reorder on cycle raises lifetime value far more efficiently than enlarging the first order or discounting acquisition. That makes reorder timing and retention — not promotions — the primary growth engine, and it's why LTV and replenishment are so tightly linked.
Key takeaways
- LTV is the total expected profit from a customer: average order value × purchase frequency × gross margin × customer lifespan.
- For consumable brands, retention and reorder frequency drive LTV far more than the first order.
- A common health benchmark is an LTV-to-CAC ratio around 3:1; raising reorder frequency lifts LTV without raising acquisition spend.
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Frequently asked questions
- What is a good customer lifetime value?
- There's no universal target — LTV is only meaningful relative to acquisition cost. A common benchmark is an LTV-to-CAC ratio of roughly 3:1, meaning each customer returns about three times what they cost to acquire. For consumable brands, healthy LTV comes from reorder frequency, not a single large first order.
- How do you calculate customer lifetime value?
- A simple model is LTV = average order value × purchase frequency × gross margin × average customer lifespan. Multiply how much a customer spends per order by how often they buy, the margin on those orders, and how long they stay. The result is the expected profit from one customer relationship.
- Why is LTV driven by retention rather than the first order?
- Acquisition often only breaks even on order one, so profit accumulates through subsequent purchases. For consumable brands, the number and frequency of reorders compounds across the relationship, meaning retention and reorder cycles move LTV far more than first-order size or one-time discounts ever can.
- How does shortening reorder cycles raise LTV?
- LTV scales with purchase frequency. When customers reorder sooner and more consistently, they complete more purchases within the same lifespan, raising the frequency term in the LTV formula. Matching reorder timing to actual consumption therefore lifts lifetime value faster than spending more on acquisition or discounting the first order.