Ecommerce Website Cost Calculator UK
This free ecommerce website cost calculator UK sellers use gives you a realistic price range based on your platform, product count, features and who builds it. Answer five quick questions to see what your online store should cost in 2026, alongside the UK market average for stores your size.
Please answer questions 1, 2, 4 and 5 before calculating.
How Much Does an Ecommerce Website Cost in the UK?
Building an online store is one of the best investments a UK business can make, but the price range is wide. A basic Shopify setup costs a few hundred pounds, while a fully custom ecommerce build can run into five figures. The real difference is not just scale. It comes down to platform choice, feature complexity, and who is building it.
This guide covers real 2026 UK pricing for ecommerce website design, broken down by platform, product count and feature set, so you can budget accurately before you speak to a single agency.
Quick answer: a starter ecommerce website in the UK costs between £599 and £1,200. A growing store with more products and payment options runs from £1,200 to £5,000. Enterprise ecommerce starts at £5,000 and scales up depending on custom development needs.
These ranges reflect current UK agency and platform pricing rather than one vendor’s rate card. The calculator above works the same way: your platform and product count set the base price band, each feature you tick adds its own cost, branding from scratch adds more, and your choice of builder (DIY, freelancer, small agency or large agency) scales the total up or down. Two sellers with different answers get different numbers because the inputs change the build, not because the tool is guessing.
Running a UK ecommerce store also brings costs beyond the build itself. If your turnover crosses £90,000 in any rolling 12-month period, HMRC requires VAT registration within 30 days, which affects your pricing, checkout setup and ongoing admin. Shipping is another UK-specific factor: courier integrations for Royal Mail, Evri or DPD typically add to the third-party integration cost further down this page, and are worth pricing in before you commit to a platform.
As a worked example, a growing WooCommerce store (21 to 100 products) with copywriting and SEO added comes out between roughly £1,450 and £3,000 with a small UK agency, before any payment or logistics add-ons. If you are not sure you need a full online store yet, WebLane’s Website Design Cost Calculator covers brochure and service-based sites instead.
Ecommerce Website Cost by Store Size
Here is what UK sellers typically pay depending on the size and complexity of their online store, and what each tier tends to suit. WebLane’s full pricing page lists these tiers alongside our brochure-site packages, if you want everything in one place.
| Store Size | Products | Price Range | Best For |
|---|---|---|---|
| Starter Store | 1 to 20 | £599 to £1,200 | New sellers testing a product range, handmade or niche goods |
| Growing Store | 21 to 100 | £1,200 to £2,500 | Established sellers expanding online, multiple categories |
| Established Store | 101 to 500 | £2,500 to £5,000 | Retail businesses moving online, subscription models |
| Enterprise Store | 500+ | £5,000 to £15,000+ | Large catalogues, custom integrations, B2B ecommerce |
Most small UK businesses starting out online need a starter or growing store. You do not need to spend £5,000 to launch a professional, high-converting online shop.
WooCommerce vs Shopify vs Custom: Which Is Cheapest?
Platform choice is one of the biggest factors in your total ecommerce website cost. Here is an honest comparison of the three most common options for UK sellers.
WooCommerce
- Runs on WordPress, you own it
- No platform monthly fee
- Hosting from £10 to £30/mo
- Payment fees 1.4% to 2.9%
- Most flexible long term
Shopify
- Hosted, Shopify owns the platform
- Platform fee £25 to £250/mo
- Transaction fees unless using Shopify Pay
- Easier to manage day to day
- More limited customisation
Custom Build
- Built from scratch to your spec
- Full flexibility and control
- No platform restrictions
- Higher ongoing development costs
- Best for complex requirements
For most small UK businesses: WooCommerce offers the best long-term value. You own it outright, there are no platform fees, and it scales as your business grows. Shopify suits sellers who want a simpler day-to-day experience and do not mind the monthly cost.
6 Things That Affect Your Ecommerce Website Price
Number of Products
More products means more pages to design and more content to write. Uploading 500 products takes far longer than 20, so check whether product upload is actually included in a quote.
Payment Gateway Setup
Integrating Stripe, PayPal, Klarna or Buy Now Pay Later adds cost and complexity. A single-gateway setup is standard, and multiple options push the price up.
Product Copywriting
Good product descriptions convert browsers into buyers. Writing unique, search-friendly copy for every product takes real time, so check whether it is included in a quote or billed as a separate line item.
SEO and Structure
A well-structured store with proper category pages, meta tags and schema markup ranks noticeably better. On-page setup should be built in from day one, not added later.
Third-Party Integrations
Connecting your store to accounting software, stock management, email platforms or courier APIs adds cost, since each integration needs setup and testing.
Ownership and Platform Fees
The cheapest upfront option is not always the cheapest overall. Shopify at £79 a month is nearly £1,000 a year, every year. A one-time WooCommerce build you own outright often costs less over three to five years.
Ongoing Costs of Running an Ecommerce Website
Your build cost is only the start. Here is what you will pay to keep an online store running in the UK.
| Cost | Monthly Estimate | Annual Estimate | Notes |
|---|---|---|---|
| Hosting | £10 to £50 | £120 to £600 | WooCommerce needs quality managed WordPress hosting |
| Domain | N/A | £10 to £20 | Renews annually |
| Payment Fees | Varies | 1.4% to 2.9% per sale | Stripe and PayPal standard UK rates |
| Shopify Platform Fee | £25 to £250 | £300 to £3,000 | WooCommerce avoids this entirely |
| Maintenance | £40 to £80 | £480 to £960 | Optional, covers updates and security |
Factor these into your total cost of ownership, not just the build price. A WooCommerce store costing £1,500 upfront with £300 a year in hosting works out significantly cheaper over five years than a Shopify store at £79 a month.
Ecommerce Website Cost Calculator FAQ
How much does an ecommerce website cost in the UK?
An ecommerce website in the UK typically costs between £599 and £15,000 or more, depending on the platform, product count and features. A starter WooCommerce store with a small product range starts from £599. A growing store with more products and payment options usually sits between £1,200 and £5,000. Enterprise ecommerce with custom development starts from £5,000.
What is the average cost of an ecommerce website?
The average cost of an ecommerce website for a small UK business, once you account for platform, a moderate product count and standard features, lands around £1,200 to £2,500. This is the range most small and growing stores fall into once payment gateways, copywriting and basic SEO setup are included.
Is this ecommerce website cost calculator accurate?
The calculator gives a realistic planning estimate based on real 2026 UK market pricing across platform, store size, features and who builds it. It is not a fixed quote, since every project has its own specifics, but it will get you close enough to budget with confidence before you contact an agency.
Is WooCommerce or Shopify cheaper to build in the UK?
WooCommerce typically has a similar or slightly lower upfront build cost and no ongoing platform fee. Shopify is simpler to manage day to day but adds a monthly platform fee of £25 to £250 on top of the build price. Over three years, WooCommerce is almost always the cheaper option for small UK businesses.
What is included in an ecommerce website design package?
A solid ecommerce package should include product page design, payment gateway integration, mobile optimisation, SSL setup, basic on-page SEO, and a contact form. Professional copywriting and help with product upload are valuable extras worth asking about. See WebLane’s ecommerce packages for what is included as standard.
How long does it take to build an ecommerce website in the UK?
A starter ecommerce website takes 7 to 14 days from a focused agency. A larger store with 100 or more products and custom integrations can take 3 to 6 weeks. Large agencies often quote longer timelines, but a good part of that is queue time rather than actual build time.
Do I need to pay monthly fees for an ecommerce website?
Some ongoing costs are unavoidable, such as hosting from £10 to £50 a month and payment gateway fees of 1.4% to 2.9% per transaction. Shopify adds a platform fee on top of this. A WooCommerce store on your own hosting avoids the platform fee entirely, and there are no ongoing agency fees with WebLane unless you request extra work. See the full website design packages for a wider comparison.
What is the difference between ecommerce website price and ecommerce website cost?
Ecommerce website price usually refers to the upfront quote for the build itself. Ecommerce website cost is broader and includes ongoing expenses such as hosting, payment fees and any platform charges over time. A low upfront price on a platform with high monthly fees can end up costing more than a slightly higher upfront price with no ongoing platform fee.
Can I get marketing help after my ecommerce website is built?
Yes. A website is the foundation, but most stores need ongoing traffic and conversion work after launch, things like SEO, paid ads, email flows and conversion testing. WebLane’s ecommerce marketing services cover this separately from the website build itself, so you can start with just the build and add marketing later if that suits your budget.
Will I own my ecommerce website after it is built?
With WooCommerce, yes, you own the site, the code and the data entirely. With Shopify, you own your content and data but not the underlying platform. At WebLane, all WooCommerce builds are handed over with full ownership: your domain, your hosting, your store.
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