Free Customer Lifetime Value Calculator

What Is Customer Lifetime Value (LTV) and Why Does It Matter?

Customer lifetime value (LTV or CLV) is the total revenue a customer generates for your business over their entire relationship with your brand. For eCommerce, LTV is the single most important metric for understanding whether your business model is sustainable — because it answers the fundamental question: are your customers worth more than they cost to acquire?

A DTC brand with a $75 average order value, 3 purchases per year, and a 2.5-year average customer lifespan has an LTV of $562.50. That means each customer generates $562.50 in revenue over their lifetime — and if the brand's gross margin is 60%, the gross profit LTV is $337.50.

This matters because acquisition costs keep rising. The average eCommerce CAC is now $68–$84 and climbing 12–15% annually. If you do not know your LTV, you cannot know whether your acquisition spend is building a profitable business or burning cash. A $65 CPA looks expensive in isolation — but against a $337 gross profit LTV, it is a 5.2x return on every dollar invested in growth.

Revenue LTV vs. Gross Profit LTV

There are two ways to express customer lifetime value, and using the wrong one leads to bad decisions:

• Revenue LTV: Total revenue a customer generates over their lifetime (AOV × Frequency × Lifespan). This is the headline number, but it overstates what you actually keep because it does not account for product costs.
• Gross Profit LTV: Revenue LTV × Gross Margin %. This is the amount you actually keep after cost of goods sold. Gross Profit LTV is what you should compare against CAC to determine profitability.

For a customer with $562.50 revenue LTV and 60% gross margin, the gross profit LTV is $337.50. If your CAC is $65, your true LTV:CAC ratio is $337.50 ÷ $65 = 5.2x — meaning you earn $5.20 in gross profit for every $1 spent acquiring a customer. Calculate your acquisition cost with our CPA calculator.

How to Calculate Customer Lifetime Value

The standard LTV formula for eCommerce uses three inputs that you can pull from your Shopify, WooCommerce, or analytics dashboard:

• Average Order Value (AOV): Total revenue ÷ total orders over a period. Most brands use 12-month rolling data. For an accurate figure, exclude outlier orders (wholesale, bulk, etc.).
• Purchase Frequency: Total orders ÷ unique customers over a period. A frequency of 3 means the average customer buys 3 times per year. Subscription brands typically see 6–12x.
• Customer Lifespan: The average number of years a customer remains active. For non-subscription eCommerce, this is typically 1.5–3 years. Subscription brands with strong retention can see 3–5+ years.

Multiply all three to get revenue LTV. Then multiply by your gross margin percentage to get gross profit LTV — the number that actually matters for acquisition decisions.

What Is a Good LTV for eCommerce Brands?

LTV benchmarks vary dramatically by category. Subscription and replenishment brands (supplements, coffee, pet food) typically see LTVs of $400–$900 because of high purchase frequency. One-time purchase categories like electronics may only see $100–$200.

More important than the absolute LTV number is the LTV:CAC ratio — how much lifetime value you get per dollar spent acquiring a customer:

• Below 2x: Danger zone. You are spending too much to acquire customers relative to what they are worth. Either reduce CAC or improve retention and repeat purchase rates.
• 2x – 3x: Functional but tight. You are covering acquisition costs but leaving little margin for fixed costs and profit. Focus on improving one of the three LTV inputs (AOV, frequency, or lifespan).
• 3x – 5x: Healthy. The gold standard range for DTC brands. You earn $3–$5 in gross profit for every $1 spent on acquisition. Track with our LTV:CAC ratio calculator.
• Above 5x: Excellent — but you may be under-investing in growth. You can likely afford higher CPAs and scale acquisition faster without hurting profitability.

Why LTV Matters More Than ROAS for Growth Decisions

ROAS (return on ad spend) only measures first-order performance — what you get back from a single ad-driven purchase. But most DTC customers buy more than once. A campaign with a 1.5x first-order ROAS looks unprofitable until you factor in that those customers buy 3 more times over the next 2 years.

LTV-based acquisition lets you invest more aggressively upfront because you know the long-term payoff. Brands that make decisions based solely on first-order ROAS systematically under-invest in growth and lose market share to competitors who understand lifetime value. Check your first-order returns with our ROAS calculator, then use this LTV calculator to see the full picture.

How to Increase Customer Lifetime Value

LTV is a function of three variables: AOV, purchase frequency, and customer lifespan. Improving any one of them directly increases LTV. Here are the highest-impact strategies for each:

Increase Average Order Value

Bundles, upsells, cross-sells, and tiered free shipping thresholds are the fastest ways to lift AOV. Place complementary products on cart and checkout pages, create curated bundles at a slight discount, and set free shipping at 20–30% above your current AOV. Every dollar of AOV improvement multiplies across all future purchases. Use our contribution margin calculator to model the profit impact.

Improve Purchase Frequency

Email and SMS flows are the highest-ROI lever for repeat purchases. Build post-purchase sequences that re-engage buyers at the optimal reorder window, send personalized product recommendations based on purchase history, and create a loyalty or rewards program that incentivizes the second and third purchase. A 5% increase in retention can boost profits by 25–95%.

Extend Customer Lifespan

Retention starts with the first experience. Fast shipping, quality unboxing, proactive customer service, and a frictionless return process build the trust that turns one-time buyers into long-term customers. Win-back campaigns targeting lapsed customers at 60, 90, and 120 days can recapture 5–15% of churned revenue.

Launch a Subscription or Replenishment Program

Subscriptions dramatically increase both purchase frequency and customer lifespan. Even offering a "subscribe and save" option at a 10–15% discount can shift 15–30% of orders to recurring. Subscription customers typically have 2–3x the LTV of one-time buyers because they purchase predictably and churn more slowly.

Using LTV to Set Your Maximum CPA

Once you know your gross profit LTV, you can calculate the maximum CPA you can afford while still hitting your profitability targets. The formula is simple:

If your gross profit LTV is $337.50 and you want a 3x LTV:CAC ratio, your max CPA is $337.50 ÷ 3 = $112.50. This means you can spend up to $112.50 to acquire a customer and still earn $3 for every $1 invested.

This reframes your entire paid media strategy. Instead of optimizing for the lowest possible CPA, you optimize for volume at or below your max CPA — which often means scaling much more aggressively than first-order ROAS would suggest. Run these numbers through our CPA calculator to see where your campaigns stand.