Free tools for the numbers behind your ads

Three small tools that run in your browser. Nothing you type leaves the page, and none of them needs an account.

Cost per buyer and ROAS calculator

Cost per buyer, ROAS, break-even ROAS and profit after ads from four numbers.

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UTM link builder

Tag a link and see which channel its visits land in, by MIRA FIVE’s own rules.

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A/B test calculator

The smallest change an A/B test can find in 2 to 8 weeks, with the maths MIRA FIVE uses.

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See which channel brings buyers

Free for 25,000 events a month. No card needed.