CPM, CPC, CTR & ROAS Calculator

Calculate advertising metrics — CPM, CTR, CPC, conversion rate, CPA and ROAS — from your campaign numbers.

How do you calculate CPM, CPC and ROAS?

Ad metrics compare cost and results: CPM is the cost per 1,000 impressions, CPC the cost per click, CTR the share of impressions that were clicked, CPA the cost per conversion and ROAS the revenue earned per unit of ad spend.

Formulas

Metric	Formula
CPM	spend ÷ impressions × 1,000
CTR	clicks ÷ impressions × 100
CPC	spend ÷ clicks
Conversion rate	conversions ÷ clicks × 100
CPA	spend ÷ conversions
ROAS	revenue ÷ spend

Fill in the numbers you have; each metric is calculated as soon as its inputs are available. Works for Google Ads, Meta Ads, TikTok, LinkedIn and any other channel.

Track which links bring those clicks with UTM tags from the UTM Campaign URL Builder.

Frequently asked questions

What is a good ROAS?

Many businesses aim for 3–4x, but break-even ROAS depends on your margin: with a 25 % margin you need at least 4x.

What is a good CTR?

Search ads often get 3–6 %, display ads under 1 %; compare with your own history.

Is ROAS the same as ROI?

No. ROAS uses revenue; ROI uses profit after all costs.