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How to Calculate Facebook Ads ROAS
The Meta Ads funnel starts with impressions, flows through clicks, and ends at conversions. Every stage leaks — and your CPM and CTR determine your effective cost per click long before you get to conversions.
Impressions = (Ad Spend / CPM) × 1,000
Clicks = Impressions × CTR
Conversions = Clicks × Landing Page CVR
Revenue = Conversions × AOV × (1 − Refund Rate)
Gross Profit = Revenue × Gross Margin %
ROAS = Revenue ÷ Ad Spend
Break-Even ROAS = 1 ÷ Gross Margin %
Effective CPA = Ad Spend ÷ Conversions
Clicks = Impressions × CTR
Conversions = Clicks × Landing Page CVR
Revenue = Conversions × AOV × (1 − Refund Rate)
Gross Profit = Revenue × Gross Margin %
ROAS = Revenue ÷ Ad Spend
Break-Even ROAS = 1 ÷ Gross Margin %
Effective CPA = Ad Spend ÷ Conversions
Meta Ads Benchmarks (2024)
- Average CPM: $7–$15 (spikes to $20+ in Q4 holiday season)
- Average CTR: 0.9–1.5% feed ads; 0.3–0.9% broad audiences
- Average CVR: 1–4% for direct-to-consumer eCommerce
- Target ROAS: 2x–4x for most DTC brands; 3x+ recommended for profitability
Frequently Asked Questions
What is a good ROAS for Facebook Ads?
A "good" ROAS depends entirely on your gross margins. If you have 40% gross margins, you need at least a 2.5x ROAS to break even on ad spend alone (before overhead). Most profitable DTC brands operate at 3x–5x ROAS. High-margin products (digital goods, software) can be profitable at 1.5x–2x. Always calculate your break-even ROAS first — it's 1 ÷ your gross margin percentage.
What's the difference between ROAS and ROI?
ROAS (Return on Ad Spend) only measures revenue against advertising costs. ROI measures net profit against total investment, including COGS, overhead, and all business costs. A 4x ROAS sounds great but could still be unprofitable if your COGS is 60% and you have significant fixed costs. Always calculate both — ROAS for campaign optimization, ROI for business health.