Paid Search

ROAS (Return on Ad Spend)

ROAS is the revenue generated for every unit of currency spent on advertising, calculated as revenue from ads divided by ad spend.

It measures campaign profitability directly and is usually expressed as a ratio, so a 4:1 ROAS means four baht back for every baht spent. Unlike ROI, it isolates advertising performance rather than total business return. The ROAS that counts as good depends on your margins.