Ad Campaign Calculator

Paste in the numbers from your ad platform — whichever you have — and the calculator works out every metric those inputs allow: CPM, CPC, click-through rate, conversion rate, cost per acquisition, ROAS and revenue per conversion. Anything it cannot calculate is listed with the inputs it needs, and impossible combinations such as more clicks than impressions are flagged.

How to use the Ad Campaign Calculator

1. Enter the campaign values you know: spend, impressions, clicks, conversions and/or revenue.
2. Leave unknown fields blank.
3. Choose a currency.
4. Press Calculate to see every metric that can be derived.

Features

• CPM, CPC, CTR, conversion rate, CPA and ROAS
• Revenue per conversion and spend-based ROI
• Works with partial inputs and lists missing data
• Sanity warnings for inconsistent numbers
• Formula shown for each metric

Benefits

• Compare campaigns across platforms using the same definitions
• Spot whether the problem is reach, click-through or conversion
• Check an agency report in seconds

Frequently asked questions

What is a good ROAS?

It depends on your margins. A ROAS of 4 means 4 in revenue per 1 of ad spend; if your gross margin is 25%, a ROAS of 4 only breaks even on product cost before other expenses.

How is CPM calculated?

CPM is cost per thousand impressions: spend ÷ impressions × 1,000.

Why is my conversion rate higher than 100%?

Some platforms count view-through or multiple conversions per click. The calculator warns you when conversions exceed clicks so you can check the attribution settings.

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