Key facts
- Conversion rate = conversions divided by sessions (or users, or clicks), multiplied by 100
- IRP Commerce measured the B2C ecommerce conversion rate at 1.97% in September 2026, up from 1.68% a year earlier (IRP Commerce Market Data Centre)
- IRP Commerce's figures cover Great Britain, Northern Ireland and Ireland
- Conversion rates vary widely by sector, device, traffic source and price point, so compare against your own history first
- Lead generation sites should track qualified leads, not just form submissions
- dijitul conversion rate optimisation (CRO) is from £195 a month + VAT
First, be clear what you are measuring
Conversion rate is the share of visits that complete the action you care about. The formula is simple: conversions ÷ visits × 100. But the numbers change depending on choices you make:
- What counts as a conversion: a purchase, an enquiry form, a call, a booking or a newsletter sign-up.
- What counts as a visit: GA4 can calculate rates per session or per user. Google Ads calculates per click.
- Which traffic is included: all visitors, or only paid traffic to one landing page.
Always state the definition alongside the number. "3% of sessions" and "3% of ad clicks" are not comparable. Our guide to GA4 key events covers setting conversions up properly.
A real UK benchmark for online shops
IRP Commerce publishes monthly market data from online retailers. Its Market Data Centre showed a B2C ecommerce conversion rate of 1.97% in September 2026, up from 1.68% in September 2025, with an average order value of £133.12 (checked October 2026). The figures cover Great Britain, Northern Ireland and Ireland.
Use that as context, not a target. A shop selling low-cost repeat items will often convert higher than one selling furniture, where people browse for weeks. Mobile visitors usually convert lower than desktop. Returning visitors and email traffic convert better than cold social traffic.
Lead generation sites
For service businesses the question is less "what percentage fill a form" and more "how many good leads per pound spent". A form that converts at a high rate but brings in time-wasters is worse than a stricter form with fewer, better enquiries.
Track:
- Form submissions, calls from the website and bookings, each as a key event.
- How many become qualified leads, quotes and sales, recorded in your CRM.
- Conversion rate by traffic source and landing page, so you can see which ads and pages work.
How to tell if yours is good
- Compare with yourself. Plot the last 12 months by month and by device. Is it improving?
- Compare by source. If paid search converts at three times the rate of paid social, that tells you something about intent or landing pages.
- Check the money. Does conversion rate, combined with cost per click and order value or lead value, make each channel profitable? See what is ROAS.
- Look for leaks. In GA4, build a funnel exploration: product page, add to cart, checkout, purchase. The biggest drop is where to start.
How to improve it
- Speed, especially on mobile. Slow pages lose people before they see anything.
- Message match: the landing page headline should repeat the promise in the ad.
- Clear calls to action, visible without scrolling on a phone.
- Shorter forms. Remove fields you do not need at first contact.
- Trust signals: reviews, guarantees, delivery and returns information, real photos.
- Checkout friction: guest checkout, Apple Pay and Google Pay, no surprise costs at the last step.
Then test changes properly. An A/B test needs enough visitors and conversions in each version, and should run for full weeks to cover weekday and weekend behaviour. Ending a test early because one version is ahead is one of the most common mistakes.
Keep a simple test log: what you changed, why, the dates, the result and what you learned. Over a year that log becomes one of the most useful documents in the business, because it stops the same ideas being tested twice.
What dijitul charges
Our conversion rate optimisation is from £195 a month + VAT. It covers analytics review, funnel analysis, heatmaps and recordings, test ideas, A/B tests and reporting. For a single page, see landing page optimisation. If tracking needs fixing first, conversion tracking is £145 + VAT one-off. We never promise a specific conversion rate, because results depend on your product, prices and traffic.
Frequently asked questions
What is the average ecommerce conversion rate in the UK?
IRP Commerce's Market Data Centre recorded a B2C ecommerce conversion rate of 1.97% in September 2026, up from 1.68% in September 2025 (checked October 2026). The data covers Great Britain, Northern Ireland and Ireland. Rates vary a lot by sector, price and device.
Is a 2% conversion rate good?
For an online shop, 2% is close to the 1.97% IRP Commerce recorded for September 2026, so it is around the market average. Whether it is good for you depends on your sector, order value and costs. The best test is whether it makes your marketing profitable and whether it is improving.
Why is my mobile conversion rate lower than desktop?
People often browse on phones and buy later on a computer, and mobile forms and checkouts are harder to complete. Check mobile page speed, button sizes, form length and payment options such as Apple Pay and Google Pay. Small fixes on mobile often make a large difference.
How long should an A/B test run?
Until each version has enough conversions for the result to be reliable, and for at least full weeks to cover weekday and weekend patterns. Low-traffic sites may need to test bigger changes, such as a new headline or offer, rather than button colours.
Does conversion rate matter for Google Ads?
Very much. If your landing page conversion rate doubles, your cost per lead halves at the same click price. Improving the page is often cheaper than raising the ad budget, and Google's landing page experience feeds into Quality Score.
Related
Get a free marketing review
We'll look at your ads, social, email and tracking, and tell you plainly what we'd change. No obligation.