# What is a click actually worth to you? > Before comparing ad prices, work out what one visitor is worth. The unit economics arithmetic that decides whether any channel is affordable, in four numbers. Published 2026-09-22 · 5 min read · unit-economics, pricing, advertising Canonical: https://bidsurvivor.space/blog/what-is-a-click-worth-to-you --- Most advertising decisions are made by comparing prices — this channel is $0.80 a click, that one is $2.10, so the first is better. That comparison is meaningless without the other half of it, which is what a click is worth to you. Unit economics is the unglamorous arithmetic that turns a price into a decision, and it takes four numbers and about ten minutes. (Disclosure: published by [BidSurvivor](https://bidsurvivor.space), which sells clicks. The arithmetic below will occasionally tell you not to buy any.) ## The four numbers **1. Conversion rate from visitor to customer.** What fraction of people who land on your page eventually pay you. Not signups — payers. For most small products this is between 0.5% and 3%, and if you have not measured it, assume 1% and be pleased when you are wrong. **2. Average revenue per customer.** For a one-off sale, the price. For a subscription, the price times how many months people stay. If you do not know retention yet, use three months for consumer and twelve for B2B, and flag it as the guess it is. **3. Gross margin.** The fraction of that revenue you keep after the direct cost of serving them — hosting, payment fees, support, the API calls they make. Software is often 70–90%. It is never 100%, and using 100% is how people talk themselves into unprofitable channels. **4. What you are willing to pay to acquire a customer.** Not what you can afford in the abstract — what you are willing to spend today, given how long it takes to get it back. ## The arithmetic Value of one visitor = conversion rate × revenue per customer × gross margin. Worked, with deliberately ordinary numbers: - Conversion rate: **1%** - Revenue per customer: **$180** ($15/month × 12 months) - Gross margin: **80%** One visitor is worth 0.01 × $180 × 0.8 = **$1.44**. That single number changes everything about the price comparison you started with. A $0.80 click is profitable at roughly 1.8× return. A $2.10 click loses you 66 cents every time, no matter how good the platform's dashboard looks. And an $0.80 click on a channel that converts at half your usual rate is also a loss, which is why "cheapest click" is the wrong thing to optimise. Run it the other direction and you get your ceiling: at a 1% conversion rate you can pay up to $1.44 a click to break even, and you should be paying meaningfully less than that if you want the money back this year rather than eventually. ## The two places this goes wrong **Counting revenue you have not earned.** Twelve months of a subscription is not $180 in your hand — it is $15 now and a hope. If you pay $1.20 for a click and it converts, you have spent $120 to acquire a customer who pays you $15 a month. That is a fine business and a terrible cash flow, and the distinction has killed more small companies than bad ads have. David Skok's [SaaS Metrics 2.0](https://www.forentrepreneurs.com/saas-metrics-2/) is the standard treatment of why payback period, not lifetime value, is the number that constrains you when you are small. If you are funding advertising out of revenue, use **three months** of revenue as your ceiling, not twelve. It will feel painfully conservative. It is the difference between growing and running out of money while growing. **Using a conversion rate you do not have.** Everything above multiplies by that first number, so an optimistic guess propagates through the whole calculation. If you have not measured your conversion rate on a real sample — and per [how many clicks a conversion rate needs](/blog/how-many-clicks-before-a-conversion-rate-means-anything), most people quoting one have not — then your visitor value is a guess wearing a dollar sign. Do the arithmetic three times: with your optimistic rate, with half of it, and with a fifth of it. If the channel only works at the optimistic rate, you are not making a decision, you are placing a bet. ## What to do with the number **Compare channels on value, not on price.** A $3 click from an audience that converts at 4% is worth far more than a $0.40 click from one that converts at 0.2%. This is the whole reason [CPM, CPC and flat-fee pricing](/blog/cpm-vs-cpc-vs-flat-fee) are not directly comparable — they are different units, and the only common denominator is what you get back. **Use it as a bidding ceiling, not a target.** Your break-even is where you stop, not where you aim. Aim at a third of it and you have room for the conversion rate to disappoint you, which it will. **Recalculate when anything changes.** Raise your price and your ceiling rises with it — often by enough to unlock channels that were previously unaffordable. This is the most underrated growth lever available to small products: a 30% price increase moves your entire advertising ceiling by 30%, immediately, without acquiring anyone. **Write it on the wall.** One number: "a visitor is worth $1.44 to us". Every advertising conversation afterwards is shorter, because the question stops being "is this a good deal" and becomes "is this above or below $1.44". Our [ad budget calculator](/tools/ad-calculator) will run the channel side of this against published rates, but the visitor value is yours and nobody else can compute it. Ten minutes with these four numbers is the highest-return thing you will do before spending anything — and, more often than the industry likes to admit, it tells you the honest answer is to spend nothing yet and go fix the conversion rate first.