ROAS Explained: Revenue, Ad Spend & Attribution Context
Understand return on ad spend, what belongs in the numerator and denominator, and why attribution changes the result.
- ROAS = attributed revenue divided by ad spend.
- Attribution rules can change the revenue assigned to a campaign.
- ROAS is not the same as profit.
The formula
ROAS is generally calculated as revenue attributed to advertising divided by advertising spend. A ROAS of 2 means two units of attributed revenue for every one unit of ad spend.
Define revenue consistently
Decide whether the numerator uses gross order value, net revenue, subscription value, commission payout, or another business-specific measure. Document refunds, taxes, shipping, and currencies.
ClickMagick currently offers a 14-day trial. Use it to validate your real conversion paths before committing.
See ClickMagick Affiliate link. Tracking Compass may earn a commission if you purchase.Attribution changes the numerator
First-click, last-click, platform-native, and independent attribution may assign different revenue to the same campaign. That means two correct calculations can differ because the attribution rule differs.
Use alongside economics
ROAS ignores cost of goods, fulfillment, commissions, payroll, overhead, and cash timing. Pair it with margin, customer acquisition cost, lifetime value, contribution profit, or another metric that reflects your business model.
What to do next
If this topic describes your current tracking problem, move one step closer to a software decision: compare the relevant tracking category, shortlist products against your actual data path, and validate a real campaign before migrating the rest of your stack.