Average revenue per transaction.
How many times an average customer buys per year.
How many years a customer stays with you on average.
Gross profit as a % of revenue. Profit-based CLV accounts for margin.
Customer Lifetime Value (Profit)
$600
Gross profit generated over the customer’s lifetime — the true CLV.
Lifetime Revenue
$1,200
Total revenue before margin adjustment.
Annual Revenue per Customer
$400
Revenue generated per year from an average customer.
Recommended Max CAC
$200
Industry rule of thumb: keep Customer Acquisition Cost ≤ 1/3 of CLV.
Estimate only — benchmarks vary by industry and overhead. Read the full disclaimer ↓
Profit CLV and a one-third max CAC guideline across different average lifespans, using the purchase value, frequency, and margin you entered.
| Lifespan (yrs) | Lifetime revenue | CLV (profit) | Max CAC (≈1/3) |
|---|---|---|---|
| 1 | $400 | $200 | $67 |
| 2 | $800 | $400 | $133 |
| 3 | $1,200 | $600 | $200 |
| 5 | $2,000 | $1,000 | $333 |
| 7 | $2,800 | $1,400 | $467 |
| 10 | $4,000 | $2,000 | $667 |
Revenue CLV = Average Purchase Value × Purchase Frequency × Customer Lifespan.
E-commerce store: $100 avg order, 4 orders/year, 3-year lifespan, 50% margin.
Annual Revenue
$400
Lifetime Revenue
$1,200
Gross Margin
50%
CLV (Profit)
$600
Max CAC (CLV ÷ 3)
$200
Each customer is worth $600 in gross profit over 3 years. Dividing by three, you can spend up to $200 to acquire each customer and still hit the 3:1 CLV:CAC benchmark exactly. Spend less and the ratio improves; spend more and it slips below 3:1.
Lifetime value has two faces. Revenue CLV multiplies average order value by purchase frequency and lifespan — on the defaults, $100 × 4 × 3 = $1,200. Profit CLV applies your gross margin to that, so a 50% margin turns $1,200 of revenue into $600 of value you actually keep. The two can diverge enormously: a business selling $1,200 of low-margin hardware at 15% keeps $180, while a software business at 85% keeps over $1,000 from the same headline revenue.
Quoting revenue CLV in a budget meeting is how companies justify overspending on acquisition. The margin is where the cost of delivering the product lives, and acquisition has to be paid out of profit, not revenue. This calculator leads with profit CLV for exactly that reason — it is the figure that tells you what a customer can fund.
The widely-cited heuristic is that lifetime value should be at least three times customer acquisition cost. Run backward, that fixes a ceiling on spend: divide profit CLV by three to find the most you can pay to acquire a customer and still clear the bar. On the defaults, $600 ÷ 3 = $200. Corporate Finance Institute frames a ratio above 3.0 as the conventional "good" threshold, while noting it is a guideline rather than a guarantee — retention and acquisition costs both drift over time.
The reason 3:1 became the rule of thumb is that the other 2× of value has to cover everything CLV ignores: the gap between gross and fully-loaded cost, the payback delay while you wait to earn the lifetime back, and the customers who churn before the model says they should. Treat $200 here as a not-to-exceed number, not a target to spend up to.
It is tempting to celebrate an LTV:CAC of 6:1 or 8:1, and a single best-in-class cohort can genuinely look like that. But a blended ratio sitting far above 3:1 month after month usually means the opposite of efficiency — it means you are under-investing in growth. If every customer you acquire returns five or eight times what you paid, there is almost certainly profitable demand you are leaving on the table by capping budgets too tightly.
Healthy, fast-growing companies often run nearer 3:1 on purpose, deliberately spending into the available return to capture the market before competitors do. The diagnostic is direction: a ratio drifting below 3:1 says acquisition is getting too expensive or value is eroding; a ratio stuck well above it says the growth pedal has room to press. Neither is read from CLV alone — it only makes sense next to your real CAC.
This is an averaged, undiscounted CLV. It does not reduce future-year revenue to present value, so for relationships measured in many years it overstates value — a dollar of margin in year seven is worth meaningfully less than a dollar today, and a discounted or cohort-based model captures that. The table above shows how steeply CLV scales with lifespan precisely because nothing here is discounted.
It also treats every customer as the average, which hides the shape of the real distribution. A handful of loyal, high-frequency buyers routinely carry the mean while most accounts churn early, so a single blended CLV can flatter a business whose typical customer is far less valuable. Segment the calculation once you have cohort data, and revisit the inputs as actual history replaces your starting assumptions.
The benchmark is 3:1 — CLV should be at least 3× your customer acquisition cost. A ratio below 1:1 means you’re losing money on each customer. Top SaaS companies often target 5:1 or higher.
Four strategies: (1) Increase average order value through upselling/cross-selling. (2) Increase purchase frequency with loyalty programs and email marketing. (3) Extend customer lifespan with better retention and service. (4) Improve gross margin through pricing or cost reduction.
They are the same metric — Customer Lifetime Value (CLV) and Lifetime Value (LTV) are used interchangeably. Both measure total value a customer generates over their relationship with your business.
CLV sets the maximum allowable customer acquisition cost (CAC). If CLV is around $600, a roughly 3:1 guideline points to a max CAC near $200. This lets you set ad spend limits, evaluate channels, and determine bid caps for paid acquisition.
Profit CLV is usually the more honest figure because it accounts for the cost of goods through your gross margin. Revenue CLV can look impressive but overstates what a customer is truly worth, especially in low-margin businesses, so most budgeting decisions should lean on the profit version.
It uses a simple average model for clarity, so it does not reduce later-year revenue to present value. For short customer lifespans the difference is small, but for relationships measured in many years a discounted CLV gives a more conservative and realistic number.
It is only as reliable as your lifespan and frequency estimates, which are hard to pin down early when you simply have not observed customers long enough. Treat early CLV figures as rough planning numbers and refine them with cohort data as real history accumulates.
Figures on this page are checked against primary, authoritative sources. Links open in a new tab.
Business disclaimer
Results are estimates for planning and analysis based on the figures you enter. They are not accounting, tax, or financial advice — verify with your own records and a qualified professional before making decisions.
Built and maintained by Calculator Matters, an independent calculator project. Method checked against published formulas and primary sources · Last reviewed 5 June 2026 · How we calculate · Found an error? corrections@calculatormatters.com