Citable benchmarks
Average ecommerce conversion rate is often ~2–3% (varies widely by industry and traffic mix).
Source: IRP Commerce — Ecommerce Market Data (Jan 2026)
Key takeaways
- Free Ad Spend Budget Planner — Plan Your Monthly Ad Budget — focus on one metric or lever at a time; validate with data before scaling spend.
- Pair reading with free Growthegy calculators (LTV, ROAS, break-even, pricing) to turn ideas into numbers.
- Bookmark growthegy.com/tools/ and run the Business Strategy Quiz when you need a prioritised roadmap.
What does this ad spend budget planner do?
It suggests a monthly ad budget based on your revenue and how much you want to spend on ads as a percentage of revenue (e.g. 15%). It then estimates revenue from that spend using your expected ROAS. Many brands use 10–20% of revenue for paid acquisition.
Enter your monthly revenue, target ad spend %, and expected ROAS below.
Suggested monthly ad spend$7,500
Expected revenue from ads (at this ROAS)$22,500
Many brands spend 10–20% of revenue on paid acquisition. Adjust % and ROAS to match your margins and goals.
Next steps
Use our ROAS Calculator to measure actual ROAS and Social Media ROAS Calculator or Marketing Channel ROI Comparator to allocate budget across channels.
FAQ
How much should I spend on ads?
A common rule of thumb is 10–20% of revenue on paid acquisition, depending on margin and growth goals. This planner uses your revenue and a target % to suggest a monthly ad budget, then applies expected ROAS.
What ROAS should I use in the planner?
Use your current or target ROAS. Many ecommerce brands target 3–4x or higher. Use our ROAS Calculator to compute your actual ROAS from spend and revenue.
Is this ad spend budget planner free?
Yes. Free with no signup. For ROAS see ROAS Calculator; for channel comparison see Social Media ROAS Calculator and Marketing Channel ROI Comparator.