A forecast will populate as you build or edit a campaign, estimating the total household audience size, along with your campaign's reach and frequency.
Find it on the top right of any campaign page:
This tool maps campaign parameters – schedule, location, audience, and delivery settings – to available inventory. It automatically updates when campaign parameters change, so feel free to play around with it until you find an ideal fit.
The forecaster includes these estimated metrics:
Total household audience size: the total amount of homes within the selected location and audience targeting.
Estimated reach: the total number of homes your campaign will reach within your current budget, schedule, and targeting. Both daily and weekly estimates are provided.
Estimated frequency: the number of times a unique home may see your ad.