Retargeting Pool Size Estimator
Size your addressable retargeting audience from traffic, window and match rate.
days
%
Share of visitors actually addressable post-privacy.×
$
Addressable pool
13,750
Durable retargeting audience
Monthly impressions needed
238,150
Pool × freq × 4.33 wks
Suggested min budget
$2,143
To hit target frequency
Around 13,750 addressable users. Budget near $2,143/month sustains ~4× weekly frequency without over-serving.
Match rate is where most retargeting math breaks — post-iOS and consent loss routinely cut addressable pools by 30–50%.
About this calculator
Estimate the durable size of your retargeting pool from monthly visitors, cookie window and match rate — and a sensible minimum budget to actually reach it.
Everything runs in your browser — nothing you type is sent anywhere or stored. Use it to sanity-check a plan, pressure-test a channel, or brief a team before you commit budget.