How does page speed affect revenue?

According to Deloitte Digital, a 0.1s improvement in load time results in an 8% increase in conversion rates for retail sites. Google data shows 53% of mobile visitors abandon a page that takes more than 3 seconds to load.

How is the page speed ROI calculated?

The calculator uses the Deloitte benchmark: every 0.1 seconds of speed improvement = 8% relative conversion lift. Your current conversion rate is multiplied by this lift factor, then applied to your baseline revenue (visitors × conversion rate × average order value) to project the additional monthly revenue.

What is a good page load time?

Under 1 second (1,000ms) is considered fast and puts you in the top 10% of websites. Under 2.5 seconds is good. Between 2.5–4 seconds needs work. Over 4 seconds is slow and significantly hurts conversions and SEO rankings via Core Web Vitals.

How do I measure my current page load time?

Use Google PageSpeed Insights (pagespeed.web.dev) to measure your Largest Contentful Paint (LCP), which is the main performance metric. WebPageTest.org and GTmetrix also provide detailed load time analysis.

Page Speed ROI Calculator

Find out how much revenue slow load times are costing you. Based on the Deloitte benchmark: every 0.1s faster = 8% more conversions.

conversion lift per 0.1s improvement

Deloitte Digital

delay = 7% reduction in conversions

Akamai

53%

of users abandon after 3s load time

Google

2×

faster sites see 2× higher conversion rates

Cloudflare

Currency

Traffic & Revenue

Monthly Visitors

25K sessions/month

Current Conversion Rate

Industry average: e-commerce 1–3% · SaaS landing 3–8%

Average Order / Transaction Value

Monthly revenue baseline: $50,000

Page Load Time

Needs work— Average site

~16% higher bounce rate

Current Load Time

Check: Google PageSpeed Insights → LCP or TTI

Target Load Time After Optimization

Speed improvement: 2.0s faster → 160.0% conversion lift

Monthly Revenue Gain

$80,000

From $50,000 → $130,000/mo

Revenue Projections

Monthly Gain+$80,000

Annual Gain+$960,000

3-Year Cumulative+$2,880,000

Current CR

2.0%

conversion rate

After Optimization

5.20%

+3.20% lift

Performance Tier Change

Needs work

3.5s now

→

Good

1.5s target

Methodology: Deloitte Digital found a 0.1s improvement lifts retail conversions by 8% on average. Lift is applied multiplicatively to your current conversion rate.

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Note: Projections are based on the Deloitte Digital benchmark (0.1s = 8% conversion lift) which was measured for retail e-commerce sites. Actual results vary by industry, traffic source, and optimization quality. Use as a directional estimate.

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