Page Speed Impact Calculator
Calculate how much revenue you are losing due to slow page load times. See the financial impact of speed improvements.
Quick Answer
Page Speed Impact Calculator uses the formula: Revenue Impact = Monthly Revenue × (Seconds Saved × 7% Conversion Lift per Second). Enter your numbers above to get instant results — free, no sign-up required.
Formula
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