Free Tool
Page Speed Impact Calculator
Calculate how much revenue you are losing due to slow page load times. See the financial impact of speed improvements.
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Formula
Revenue Impact = Monthly Revenue × (Seconds Saved × 7% Conversion Lift per Second)
How Page Speed Affects Revenue
Research by Google and Amazon consistently shows that every 1-second delay in page load time reduces conversions by approximately 7%. For a store doing $50,000/month, reducing load time from 5 seconds to 2 seconds could recover $10,500/month in lost revenue.
Page speed also directly impacts Google rankings through Core Web Vitals — sites that load faster rank higher in search results, compounding the revenue benefit.
Core Web Vitals Targets
- LCP (Largest Contentful Paint): Under 2.5 seconds — how fast the main content loads
- FID (First Input Delay): Under 100ms — how quickly the page responds to interaction
- CLS (Cumulative Layout Shift): Under 0.1 — how stable the visual layout is during loading
Meeting all three thresholds gives you a ranking boost and improves user experience significantly.
Quick Speed Wins for E-commerce
- Compress images: Use WebP format — saves 30-50% file size vs JPEG
- Lazy load below-fold content: Only load images when they scroll into view
- Remove unused apps/scripts: Each Shopify app adds JS that slows your store
- Use a CDN: Serve assets from servers closest to your customers
- Minimize redirects: Each redirect adds 100-300ms of delay