💰 Google Ads ROI Calculator

Measure the profitability and performance of your Google Ads campaigns

📈 Understanding Your Google Ads ROI

Key Metrics Explained

  • ROI: (Revenue - Ad Spend - COGS) / Ad Spend × 100. Shows profit percentage relative to spend.
  • ROAS: Revenue / Ad Spend. Shows how many dollars you earn per dollar spent.
  • CPA: Ad Spend / Conversions. How much you pay to acquire one customer.
  • Conversion Rate: (Conversions / Clicks) × 100. Percentage of clicks that become customers.
  • CTR: (Clicks / Impressions) × 100. How often your ad gets clicked when shown.

What's a Good ROI?

  • 200%+ ROI: Excellent - highly profitable campaign
  • 100-200% ROI: Good - healthy profit margins
  • 50-100% ROI: Fair - profitable but room to improve
  • 0-50% ROI: Marginal - barely breaking even
  • Negative ROI: Losing money - immediate optimization needed

ROAS Benchmarks

  • 4:1 or higher: Strong performance for most industries
  • 3:1 to 4:1: Solid, sustainable returns
  • 2:1 to 3:1: Acceptable, but optimization recommended
  • Below 2:1: Typically not sustainable long-term

How to Improve Your Google Ads ROI

  • Refine targeting: Focus on high-intent keywords and audiences
  • Optimize ad copy: Test different headlines and descriptions
  • Improve landing pages: Ensure pages match ad promise and load fast
  • Use negative keywords: Exclude irrelevant searches that waste budget
  • Bid strategically: Adjust bids based on performance data
  • A/B test everything: Test ads, landing pages, offers continuously
  • Track conversions properly: Ensure all conversion actions are tracked
  • Pause underperformers: Stop ads with high CPA or low conversion rates

Industry-Specific Considerations

  • E-commerce: Factor in product margins and shipping costs. ROAS 4:1+ is typical.
  • B2B/SaaS: Higher CPA acceptable due to customer lifetime value.
  • Local services: Focus on conversion rate and cost per lead quality.
  • High-ticket items: Longer sales cycles may require attribution modeling.

When to Include COGS

Include Cost of Goods Sold when:

  • Selling physical products with manufacturing/wholesale costs
  • You want to measure TRUE profit (not just revenue)
  • Comparing profitability across different product lines
  • Planning budgets based on actual margins

Leave COGS at 0 for service businesses or when measuring gross revenue ROI.