Digital Marketing & Ads Studio
A complete set of free marketing calculators — CPM, CPC & CTR, CPA, break-even ROAS, LTV:CAC, and CAGR — for measuring what a campaign actually costs and whether it's working, organized by what to check first.
1. Traffic & engagement cost
What you're paying before you know if any of it converts.
CPM Calculator
What you're paying per 1,000 ad impressions — the standard way to price and compare display, video, social, and CTV inventory before a single click or conversion has happened.
CPC & CTR Calculator
CPC shows what you pay per click; CTR shows how often people who see the ad actually click it. Read together, not separately — a low CPC on an ad nobody engages with isn't efficient.
2. Acquisition cost
What a completed sale, sign-up, or lead actually costs.
3. Profitability & growth
Whether that acquisition cost was actually worth paying.
Break-even ROAS Calculator
The minimum return every ad dollar needs to generate, based on your real profit margin, before a campaign covers its own cost — the floor to know before setting a target ROAS.
LTV:CAC Calculator
What a customer is worth over their full relationship with your business, checked against what it cost to acquire them — the standard 3:1 ratio is the widely cited healthy benchmark.
CAGR Calculator
Growth in revenue, customers, or any other metric expressed as one compounded annual rate across multiple years, instead of a noisy year-over-year swing that can hide the real trend.
Why these marketing calculators exist as one hub
Most marketing calculators available online do one thing in isolation — a CPC calculator here, a CTR calculator there — which is a problem when the real question is never just "what does a click cost," it's whether that click is part of a profitable customer. This hub covers the full chain. CPM and CPC/CTR measure the cost and engagement of traffic itself, before you know whether any of it converts. CPA takes the next step, showing what a completed sale, sign-up, or lead actually costs once spend is divided by conversions — and, if you know your average order value and target margin, the maximum CPA a campaign can sustain before it stops being profitable. From there, two calculators check whether the spend was worth it: break-even ROAS is the minimum return a campaign needs to cover its own cost based on your margin, and LTV:CAC compares what a customer is worth over their full relationship against what it cost to acquire them in the first place. CAGR steps back further still, smoothing growth in revenue or customers into one comparable annual rate instead of a noisy year-over-year swing. Used as a genuine digital marketing calculator toolkit rather than six disconnected tools, these numbers form a chain: cost and engagement feed into acquisition cost, and acquisition cost only means something once it's checked against what a customer is actually worth.
How to use this hub
- Pick the calculator that matches what you're measuring — CPM or CPC/CTR for traffic cost and engagement, CPA for acquisition cost, break-even ROAS or LTV:CAC for profitability.
- Enter your real numbers — ad spend, impressions, clicks, or conversions — straight from your ads platform.
- Read the instant result and its plain-language interpretation, such as whether your CPA sits above or below what your margin can sustain.
- Cross-reference the next calculator in the chain — a good CPA still needs to clear break-even ROAS or LTV:CAC before that spend is confirmed as actually paying off.
Who this is for
For marketers, growth teams, and agency owners running paid campaigns who need a digital marketing calculator that ties cost, engagement, acquisition, and lifetime-value metrics together — without re-entering the same spend and conversion numbers into six different single-purpose tools, and without waiting on a dashboard that only reports whatever metric a platform decided to highlight. Looking for the plain calculator grid instead of the funnel view? Browse all Marketing & Ads calculators.
Below are the questions people most often ask when picking which marketing calculator to use first.
Frequently asked questions
What marketing metrics should I calculate first?
It depends on what stage of the funnel you're evaluating. If you're paying for impressions, start with CPM. If you're paying for clicks, CPC and CTR together tell you both cost and how relevant the ad is to the audience seeing it. Once a campaign is meant to produce an actual sale or lead, CPA is the number that matters most, since a cheap click that never converts isn't actually cheap — and once you know CPA, break-even ROAS and LTV:CAC tell you whether that spend actually paid off.
How do I calculate CPC?
CPC (cost per click) is total ad spend divided by the number of clicks the campaign received. Spend $500 and get 250 clicks, and your CPC is $2.00. It only tells half the story on its own — a low CPC on an ad nobody engages with isn't necessarily efficient, which is why the CPC & CTR calculator on this page pairs the two together.
How do I calculate CTR?
CTR (click-through rate) is clicks divided by impressions, shown as a percentage. An ad shown 10,000 times that gets 150 clicks has a 1.5% CTR. A higher CTR generally means the ad is more relevant to the audience seeing it, though what counts as "good" varies significantly by platform and ad format.
What is a good CPA?
There's no universal good CPA — it depends entirely on what a conversion is worth to your business. The CPA calculator's max-sustainable-CPA figure is more useful than a rule of thumb: enter your average order value and target profit margin, and it shows the highest CPA you can afford per conversion before that margin disappears.
How is ROAS calculated?
Standard ROAS is revenue generated divided by ad spend. Break-even ROAS — what the calculator on this page solves for — is different: it's the minimum ROAS a campaign needs just to cover its own cost, based on your profit margin, before it's actually adding to your bottom line. A 25% margin, for example, means every dollar of ad spend needs to return at least $4 in revenue just to break even.
What's the difference between CPA and CPC?
CPC is what you pay for a single click, regardless of what happens after. CPA is what you pay for an actual result — a sale, sign-up, or lead — which only happens after some fraction of those clicks convert. A campaign can have a low CPC and a terrible CPA if very few of those cheap clicks ever turn into a real conversion.