Calculate Return on Ad Spend for your book advertising campaigns. Track performance across Amazon Ads, Facebook Ads, and BookBub to optimize your marketing budget.
Track ROAS across Amazon Ads, Facebook Ads, BookBub, and any advertising platform. See which channels deliver the best returns.
Identify profitable campaigns quickly. Know which ads to scale up and which to pause, saving money and maximizing returns.
Understand true campaign profitability. Calculate net profit after ad costs to make informed budget decisions.
Return on Ad Spend (ROAS) is a critical metric for book marketing. It shows how much revenue you generate for every dollar spent on advertising. A ROAS of 3:1 means you earn $3 for every $1 spent on ads.
For book advertising, a ROAS above 2:1 is generally considered good, while 3:1 or higher is excellent. However, acceptable ROAS varies depending on your profit margins, book price, and marketing goals.
Use this calculator to track campaign performance over time. Compare ROAS across different platforms, book launches, and promotional periods to identify your most profitable marketing strategies.
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View All Calculators →A ROAS of 2:1 or higher is generally considered good for book advertising, meaning you earn $2 for every $1 spent. A ROAS of 3:1 or higher is excellent. However, acceptable ROAS depends on your profit margins and business goals.
ROAS measures revenue generated per ad dollar spent, while ROI measures profit (revenue minus all costs including production and ads). ROAS is simpler but doesn't account for book production costs or profit margins.
For series, it's valuable to calculate both immediate ROAS (Book 1 only) and lifetime ROAS (including read-through to later books). This shows the true value of acquiring new readers.
Your breakeven ROAS depends on your profit margin. If you earn 70% profit per sale, you need a ROAS of at least 1.43:1 to break even. Higher profit margins allow for lower ROAS while remaining profitable.
Check ROAS daily for active campaigns, especially during book launches. For ongoing ads, weekly or bi-weekly analysis is sufficient. Always allow campaigns 7-14 days of data before making major decisions.
Calculate Advertising Cost of Sale - the inverse of ROAS used by Amazon.
Calculate your net earnings per book to determine true ad profitability.
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