CPM, CPC, CTR and CPA calculator

Enter your campaign spend and results and get every metric at once.

How it works

Fill in whatever you have: spend and impressions give CPM; add clicks for CPC and CTR; add conversions for CPA and conversion rate.

CPM = spend / impressions × 1000
CPC = spend / clicks
CTR = clicks / impressions
CPA = spend / conversions

It varies a lot: search ads are often 3–6%; display and social are usually below 1%.

VAT — Add or remove VAT with UK and European rates.
Margin and markup — Profit margin, markup and selling price from cost.
Break-even point — How many units you need to sell to cover your costs.
Profit margin and VAT — Margins, VAT and break-even for a product, with a product library.
ROAS and ad ROI — Return on ad spend and the minimum ROAS to make money.
CAC and LTV — Cost to acquire a customer, what they’re worth and payback time.
Conversion rate — Share of visits that buy, and what each visit is worth.