Profitability

How Many Customers Can Your Website Bring You? The Simple Math

Klickstudio — Web Studio Geneva

28 September 2026 · 6 min read

Calculating the return on investment of a website

“Will a website really bring me customers?” That is the right question to ask before investing. The answer is a simple calculation you can do in five minutes with your own numbers.

The formula

Calculation

Visitors × contact rate × closing rate × average deal size = revenue brought in by the website

Each term is a lever: more visitors (SEO), more contacts (website design), more deals (your offer).

An example to adapt

Take a fictional renovation company. The figures below are illustrative assumptions, not market averages: replace them with your own.

ItemAssumptionResult
Visitors per month300300
Contact rate3%9 inquiries
Closing rate1 in 33 jobs
Average job valueCHF 4,000CHF 12,000 per month

In this example, the website pays for itself with the first job. Even if you halve every assumption, the math stays very favorable for high-value work.

Three levers to improve the result

  1. More visitors: local SEO, Google profile, pages per service and location.
  2. More contacts: visible number, call button, WhatsApp, a form with four fields at most.
  3. More deals: photos of your work, customer reviews, clear prices or price ranges.

A website that does this work for you

A custom, Google-optimized brochure website, live in 24h from CHF 690, with no subscription.

Frequently asked questions

Where do I find my visitor numbers?

In Google Search Console (free) or your analytics tool. If you have no website yet, start from local searches for your trade in your area.

What contact rate should I aim for?

It varies a lot by trade and urgency. The most reliable approach is to measure your own and improve it: visible call button, short form, WhatsApp.