eCommerce ROI

Ecommerce Performance ROI Calculator
Ecommerce performance tool

Website Performance ROI Calculator

Estimate the revenue opportunity created by improving site speed, then see how quickly better hosting could pay for itself.

Your website and sales data

Compare your current load time with the performance target you want to reach.

Current: 4.0 seconds
Target: 2.0 seconds

Current position

Current revenue

$125,000

Estimated from your current traffic, conversion rate and average order value.
Monthly opportunity

$5,050–$26,250

Modelled range across the three performance scenarios below.
Annual opportunity

$60,600–$315,000

Projected over 12 months if the performance improvement is maintained.
Hosting cost increase

$300

The additional monthly investment required for the proposed hosting plan.

Estimated performance scenarios

Conservative

$5,050

Additional monthly revenue

Relative uplift 4.0%
Extra orders 51
Annual opportunity $60,600
Model 2% per second
Moderate

$12,813

Additional monthly revenue

Relative uplift 10.3%
Extra orders 128
Annual opportunity $153,756
Model 5% per second
Strong

$26,250

Additional monthly revenue

Relative uplift 21.0%
Extra orders 263
Annual opportunity $315,000
Model 10% per second

Hosting break-even

Better hosting needs 3 extra orders per month to pay for itself.

At an average order value of $100, the additional $300 monthly hosting cost is recovered after approximately 3 extra orders. Even the conservative scenario estimates 51 additional orders.

Conservative ROI

16.8×
Estimated additional revenue divided by the extra hosting cost.
Important: This calculator provides modelled scenarios, not guaranteed results. It applies conservative, moderate and strong relative conversion improvements of 2%, 5% and 10% for each second of load-time improvement. Actual results vary according to traffic quality, device mix, customer intent, site design, checkout experience and the specific performance bottlenecks being resolved.

The Data Behind the Calculator

Google’s extensive research consistently shows a direct correlation between site speed, user behavior, and revenue. This calculator’s models are built on real-world data from industry-leading studies.

The 0.1-Second Rule

A joint study by Google and Deloitte found that improving mobile site speed by just 0.1 seconds (100 milliseconds) resulted in an 8.4% increase in conversions and a 9.2% increase in average order value for retail sites.

The Bounce Rate Reality

Google analysed millions of mobile page loads and found that as page load times increase from 1 second to 3 seconds, the probability of a user bouncing (leaving immediately) increases by 32%. If it takes 5 seconds, the bounce probability jumps by 90%.

The Conversion Drop-off

Google data indicates that mobile pages that load in 1 second experience up to a 27% higher conversion rate than slower pages. Slower sites also experience up to a 22% drop in conversions overall.

How These Stats Are Validated

“Milliseconds Make Millions” (Google & Deloitte)

The Methodology: Google commissioned Deloitte to analyse real-world data, not just controlled lab tests. They tracked 30 million user sessions across 37 major brands in Europe and the U.S.

The Control: They tracked mobile load times hour-by-hour for 30 days. No UX or design changes were made to the sites during the study, isolating site speed as the sole variable affecting the change in conversions.

The Google & SOASTA Benchmark Study

The Methodology: Google used a deep neural network (machine learning) to analyse a massive dataset of mobile web sessions. They looked at 900,000 mobile ad landing pages spanning 126 countries to model how different load times precisely correlated with users abandoning the page before it loaded.