Custom E-Commerce Store ROI Calculator

Trusted, Data-Driven Estimates Based on Research from Google, Akamai, Forrester, and eConsultancy

Enter Your Store Metrics

Mobile First Contentful Paint (sec): Time until first content is rendered on mobile devices.

Mobile Largest Contentful Paint (sec): Time until the largest element is rendered on mobile.

Desktop First Contentful Paint (sec): Time until first content is rendered on desktop devices.

Desktop Largest Contentful Paint (sec): Time until the largest element is rendered on desktop.

Current Annual Revenue ($): This is your total revenue for the past year.

Monthly Ongoing Costs ($): Recurring monthly costs (hosting, APIs, etc.) to be subtracted.

Calculation Details, Methodology & Sources

Speed Metrics: We use Google Lighthouse metrics, including First Contentful Paint (FCP) and Largest Contentful Paint (LCP) for both mobile and desktop. Ideal targets are set to 1.0 second for FCP and 2.5 seconds for LCP. Research shows that faster FCP/LCP results in higher conversion rates.

Speed Conversion Lift: Based on studies, a full improvement in speed can boost conversions by up to 30%. We weight mobile and desktop contributions (mobile ~55%, desktop ~45%).

UI/UX & SEO Impact: Enhanced UI/UX can add approximately 15% conversion uplift, while SEO improvements drive an estimated 10% increase in traffic, compounding overall revenue growth.

Net Revenue Increase & Payback Period: The extra annual revenue is calculated by applying these multipliers to your current revenue, then subtracting annualized ongoing costs. The payback period divides the $68,000 investment by the net annual revenue increase and converts the result to months.

Disclaimer: Estimates are based on data from reputable sources such as Google, Akamai, Forrester, and eConsultancy. Actual results may vary depending on your current performance, market conditions, and implementation quality.