Services · Calculate load time revenue
Calculate load time revenue:
what does a slow website cost?
Calculate the cost of a slow website using your own data: monthly orders or inquiries × average value × improvement in load time × a specific factor. Enter your figures below to see a range per month and per year.
If your site proves to be too slow, EQwise can also speed it up.
That factor ranges between 0.26 and 0.76 and is derived from two published case studies.
Illustrative example
More revenue per year
from
€13,867
to
€40,533
Conservative to favorable scenario
6 s→ 2 s 67% faster
Annual website revenue€80,000
Factor0.26 to 0.76
What does a faster site earn you?
Enter what your site turns over now and how fast it is now. The result is a range, not a promise.
For an enquiry: what a customer is worth on average.
The LCPLCP The time it takes for the largest visible element of a page to appear on the screen. from PageSpeed InsightsPageSpeed Insights A free tool from Google that measures page speed and provides tips for improvement., mobile.
2.5 seconds is the threshold below which Google rates a page as good.
Fill this in to see the payback time.
The range comes from two measured cases: Vodafone turned a 31% faster LCP into 8% more sales, Swappie turned a 55% faster LCP into 42% more mobile revenue. That is 0.26 to 0.76 percent revenue per percent faster LCP. Your site is neither of them: treat this as an order of magnitude to weigh an investment against, not as a forecast.
How does the tool calculate?
The tool calculates in two steps. First, it determines how much faster your page will become: (current load timeLoad time The time it takes for a page to become visible and usable. − target load time) / current load time. Then, it translates that into revenue: orders or leadsLead Someone who has shown interest and left their contact details, for example via a form or a phone call. × average value × improvement × factor.
Load time here refers to the LCP, Largest Contentful Paint: the moment the largest visible element on the page is ready. “Target load time” is set to 2.5 seconds by default, the threshold Google uses to classify a page as good. You can adjust this value.
If you also enter the costs, the tool shows a payback period as a range in weeks, from fastest to slowest. If your current load time is already at or below 2.5 seconds and the “target” is not lower, the tool will report that your site is already under 2.5 seconds.
Where does the factor come from?
From two published Core Web VitalsCore Web Vitals Three Google metrics that indicate how fast and user-friendly a page is for visitors. cases:
- Vodafone (2021, A/B test): a 31% faster LCP resulted in 8% more sales. Ratio: 8 / 31 = 0.26.
- Swappie (2021, before and after, over three months): a 55% faster LCP resulted in 42% more mobile revenue. Ratio: 42 / 55 = 0.76.
Why do you get a range instead of a single number?
Two cases are not a law. One measured sales in an A/B test, the other mobile revenue before and after the improvement, and your sector, audience, and pages may react differently than those two companies. Therefore, the tool calculates using the lowest and highest factors and shows the area in between.
Read the range as a lower and upper limit to weigh an investment. It is not a prediction and not a guarantee for your site.
Where do I measure my load time?
For “current load time,” use the LCP on mobile from PageSpeed Insights. Measure a page that matters, such as your product page or lead generation page, and not just the homepageHomepage The first page of a website, which you see when you only type in the domain name..
For comparison: according to the HTTP Archive Web Almanac 2025, 62% of mobile pages load their main contentContent All content on your website, such as text, images, and videos. within 2.5 seconds. More than a third fail to meet that threshold.
We speed up your existing website
If the calculation shows an amount you don’t want to leave on the table, EQwise can speed up your website. We start with the site you have now.
First, we measure where the mobile delays are occurring on the pages that drive your revenue or inquiries. Then we improve what matters most: optimizing code and images, configuring cachingCaching The temporary storage of a ready-made version of a page, allowing it to be displayed faster. correctly, and removing redundant pluginsPlugin An extension you add to WordPress for extra functionality, such as a form or a translation.. Finally, we measure again and compare the before-and-after situation, using the 2.5-second LCP standard as a benchmarkBenchmark A comparative figure, such as the average within your industry..
We saw how much speed can be gained when we built a new site for an educator: nine pages became nearly fifteen times lighter. On a phone over 4G, the average usable time was 1.0 s instead of 6.0 s on the old site. On desktop, this went from 4.5 s to under half a second. For an existing site, the gain depends on what is currently causing the slowdown.
The cost and duration depend on your site. After the free scan, you will receive a proposal including price and timeline.
Discuss your load time with usScan your website
What do you do with the result?
If the potential gain exceeds what you would want to invest, start by having your website scanned. If you want the delay resolved, talk to us about speeding up your website. If you are building a new site, read how we build websites where load time is a priority from the start. If you would rather calculate the results for your own site together, please get in touch.
Frequently asked questions
Does this work without a webshop?
Yes, enter the number of inquiries per month and their average value. The two case studies measure sales and revenue, not inquiries. Therefore, treat the outcome for a service provider as a rough guide.
How reliable is the outcome?
The outcome is only as reliable as the assumption behind it. The factor is derived from two cases and says nothing with certainty about your specific website. That is why the tool provides a range. If you measure your own orders or inquiries after an improvement, you will have your own factor instead of a borrowed one.
What is a good load time?
Google considers an LCPLCP The time it takes for the largest visible element of a page to appear on the screen. of 2.5 seconds or faster to be good. That is why this is the default value for “future load timeLoad time The time it takes for a page to become visible and usable..” If your current speed is much higher, the calculated gain will be greater. If you are already below that threshold, the tool will report it—which is also a useful result.
Where do I find my LCP?
Open PageSpeed InsightsPageSpeed Insights A free tool from Google that measures page speed and provides tips for improvement., enter the page URLURL The address of a page on the internet, such as https://eqwise.nl/contact/., and read the Largest Contentful PaintLCP The time it takes for the largest visible element of a page to appear on the screen. value for mobile. Preferably use the value from real users if available; otherwise, use the test value.
