Ad Spend & ROAS Calculator
Enter advertising spend and attributed revenue to estimate return on ad spend. Add an optional budget and gross margin if you want remaining budget, estimated profit and break-even ROAS.
Example estimate ($1,000 spend and $4,000 attributed revenue)
- Total advertising spend
- $1,000.00
- Revenue attributed to advertising
- $4,000.00
- ROAS
- 4.00x
- Revenue after advertising spend
- $3,000.00
- Estimated gross profit from margin
- —
- Estimated profit after ad spend
- —
- Break-even ROAS
- —
- Budget remaining
- —
How the calculator works
ROAS = attributed revenue ÷ advertising spend. Revenue after advertising spend = attributed revenue − advertising spend. That figure is not necessarily net profit, because it does not subtract cost of goods, operating expenses, refunds, taxes or other costs.
If you enter a gross margin percentage, estimated gross profit = attributed revenue × (margin ÷ 100). Estimated profit after ad spend = that gross profit − advertising spend. Break-even ROAS = 1 ÷ (margin ÷ 100). For example, a 50% margin has a break-even ROAS of 2x: you would need two dollars of attributed revenue for each dollar spent on ads just to cover product cost and the ads themselves, before other expenses.
What each metric means
- Advertising budget is optional. If you enter it, remaining budget is budget minus spend. A negative remaining amount means spend has already exceeded the budget you typed.
- Advertising spend is what you actually spent in the period you are reviewing. It must be greater than zero or ROAS cannot be calculated.
- Attributed revenue is the sales you are crediting to advertising. Attribution is often incomplete or shared across channels.
- Gross margin is the percentage of revenue left after the direct cost of the product or service, if you choose to supply it.
Limitations
- Attribution may be inaccurate. A sale can be influenced by several visits, emails or ads.
- Results depend on the quality of the numbers you enter.
- Taxes, operating expenses, refunds, shipping and other costs may not be included.
- ROAS does not independently measure profitability.
- The calculator does not send your figures to an account, payment system or mailing list.
For context on the metrics themselves, read Google Ads metrics explained and marketing analytics for beginners.