Speed-to-Revenue Calculator
See how much revenue faster pages can unlock. A 1-second delay cuts conversions by 7% — find out what that means for your bottom line.
Why calculate your speed ROI?
- Translate technical metrics into revenue your CFO understands
- Build a business case for performance optimization in minutes
- Based on Google research: 1s delay = 7% fewer conversions
Select your industry
Business Metrics
Performance
Calculating ROI…
Projected Revenue Impact
Methodology
Conversion Elasticity
Research shows every 100ms of LCP improvement lifts conversion rate by 0.2–0.5%. We model three scenarios: conservative (0.2%), expected (0.35%), and aggressive (0.5%).
Industry Benchmarks
Benchmark data comes from the Chrome User Experience Report (CrUX) and is updated quarterly. We compare results against the industry median.
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Full revenue impact analysis with monthly and yearly projections based on your actual traffic.
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How the performance ROI calculator works
Enter your metrics
Input current LCP, monthly traffic, conversion rate, and average order value.
Set improvement targets
Choose your target LCP and the calculator models three ROI scenarios automatically.
See revenue impact
Get projected monthly revenue lift, annual ROI, and payback period.
Frequently asked questions about performance ROI
How does website performance affect revenue?
Every 100ms of latency costs Amazon 1% of sales. Google found a 0.5s delay reduces traffic by 20%. Deloitte research shows that a 0.1s improvement in site speed increases conversions by 8.4% for retail and 10.1% for travel sites. For a site with €1M annual revenue, a 1-second improvement can add €70,000-€120,000 per year.
What Core Web Vitals thresholds should I target?
Google's 'good' thresholds: LCP (Largest Contentful Paint) ≤ 2.5s, INP (Interaction to Next Paint) ≤ 200ms, CLS (Cumulative Layout Shift) ≤ 0.1. Sites passing all three thresholds receive a ranking boost in Google Search. Only ~33% of websites pass all Core Web Vitals on mobile.
How much does a performance optimisation project cost?
A typical performance audit and optimisation project costs €5,000-€25,000 depending on site complexity. Quick wins (image optimisation, caching, font loading) can be implemented in 1-2 weeks for €3,000-€8,000. Deep architectural changes (SSR migration, code splitting, CDN setup) take 4-8 weeks and cost €15,000-€40,000.
Does page speed affect SEO rankings?
Yes. Google confirmed page experience signals (including Core Web Vitals) are a ranking factor. Sites in the top 10 search results have 25% better CWV scores on average. The impact is strongest for mobile searches and competitive keywords where other ranking factors are similar between pages.
What is the fastest way to improve LCP?
The three highest-impact LCP fixes: (1) Optimise and lazy-load images — use WebP/AVIF formats with proper sizing, (2) Preload critical resources — fonts, hero images, above-the-fold CSS, (3) Use a CDN for static assets. These three changes alone can reduce LCP by 40-60% for most sites.
How do I calculate the ROI of performance improvements?
ROI = ((Revenue Uplift + Cost Savings) - Optimisation Cost) ÷ Optimisation Cost. Revenue uplift comes from improved conversion rates (typically 5-15% for a 1s improvement). Cost savings come from reduced bounce rates, lower server costs (via caching), and decreased paid ad spend (better Quality Score = lower CPC).
What tools can I use to measure website performance?
Lab tools: Lighthouse (Chrome DevTools), WebPageTest, Google PageSpeed Insights. Field data (real users): Chrome User Experience Report (CrUX), web-vitals JavaScript library. Google Search Console shows CWV status for your pages. For continuous monitoring, use SpeedCurve or Calibre.
Is the Performance ROI Calculator free?
Yes, the calculator is completely free and requires no signup. Your data never leaves your browser — all calculations happen client-side. Enter your current metrics and the tool estimates the revenue impact of specific performance improvements.