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E-Commerce and Online Shop Cost Calculator

Online Shop Costs: Transparent E-Commerce Project Estimates

Calculate the costs for your online shop with our interactive calculator.

Online Shop Costs – How Much Does Your E-Commerce Project Cost?

Online Shop Costs at a Glance

Online shop costs vary by platform, catalog size, payments, and ERP coupling.

Shop sizes

  • Small B2C shop
  • B2B with customer pricing and stock checks
  • Multi-warehouse or complex shipping

Running shop costs

  • Hosting, maintenance, SEO basics
  • Updates, support, and marketing tools in the business case

See e-commerce references and our shop development service page.

Online shop cost calculator

What does your online shop cost?

Calculate the cost of your e-commerce shop

Step 1 of 520%

Which platform do you prefer?

Tip: Own shop or marketplace?

Calculate when your own shop pays off compared to marketplace commissions.

Calculate Online Shop ROI

Online Shop Pricing Overview

Costs depend on the shop system, feature scope, and integrations.

Starter Shop
€5,600 – 14,000 excl. VAT
  • Up to 100 products
  • Standard payment methods
  • Responsive design
  • 4–8 weeks development
Most Popular
Professional Shop
€14,000 – 35,000 excl. VAT
  • Unlimited products
  • Custom design
  • ERP/inventory management
  • 8–16 weeks development
Enterprise / B2B Shop
€35,000 – 105,000+
  • B2B features (customer groups)
  • Multi-store / international
  • PIM integration
  • 4–12 months development

Which Shop System Is Right for You?

WooCommerce is ideal for smaller shops and when WordPress is already in use. Affordable, flexible, huge plugin ecosystem. For larger shops, performance may suffer.

Shopware is the German market leader for medium and large shops. Modern architecture, many B2B features, good extensibility. Higher entry costs, but a solid foundation for growth.

Custom development makes sense for very specific requirements or when no standard system fits. Maximum flexibility, but also highest costs and longer development time.

Don't Forget Ongoing Costs

In addition to one-time development, monthly costs apply:

  • Hosting: €35 – 350/month excl. VAT depending on traffic and performance requirements
  • Maintenance: €140 – 560/month excl. VAT for updates, security, minor adjustments
  • Payment providers: 1.5–3% per transaction + possible base fees
  • Marketing: SEO, SEA, newsletter – budget depends on ambitions

What Drives Costs Up?

The most expensive items are often integrations (ERP, PIM, shipping) and custom features (configurators, B2B workflows, marketplace features).

Also, design effort and data migration from an existing shop can significantly impact the budget. Define early which features are truly necessary.

E-Commerce Success Factors

Secure Payments

Build trust through well-known payment providers and SSL encryption.

Logistics

Seamless integration with shipping providers and inventory management.

Conversion

Optimized checkout process for maximum completion rates.

Frequently asked questions

Online Shop Costs

Costs & budget

How much does a simple online shop cost?

A simple shop with up to 100 products, standard payments and basic design costs €5,600 – 14,000 excl. VAT. With WooCommerce you can start from approx. €3,500 excl. VAT.

How much does a professional B2B shop cost?

B2B shops with customer-group pricing, tier prices, approval workflows and ERP integration range from €21,000 – 70,000 excl. VAT. Configurators or marketplace features increase effort.

What are the ongoing costs of running an online shop?

Hosting: €35 – 350/month excl. VAT. Maintenance, updates and security: €140 – 700/month excl. VAT. Payment providers: approx. 1.4–3% per transaction. Optional SEO and product maintenance: €350 – 1,400/month excl. VAT.

Björn Groenewold – Geschäftsführer Groenewold IT Solutions

Calculate shop costs

Use our cost calculator for an initial estimate of your e-commerce project.

Go to cost calculator

Shop systems

Shopware, WooCommerce or custom – which is better?

WooCommerce (from €5,600): flexible and affordable for smaller shops. Shopware (from €17,500): strong in Germany with many B2B features. Custom (from €35,000): maximum flexibility for special requirements.

Can you take over existing shops?

Yes, we maintain and extend existing Shopware or WooCommerce shops. After a code review we provide a reliable quote.

Björn Groenewold – Geschäftsführer Groenewold IT Solutions

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Which solution fits your project? We advise you without obligation.

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Process & timeline

How long does online shop development take?

Small shop: 4–8 weeks. Medium shop: 8–16 weeks. Complex B2B/enterprise shop: 4–12 months – depending on product data, design and integrations.

What other cost drivers are there in e-commerce projects?

Often expensive: ERP/PIM/shipping integrations, custom features (configurators, B2B workflows), design effort and data migration. These should be planned early in scoping.

Operations & scaling

How does an online shop scale for traffic peaks (e.g. Black Friday)?

Through load balancers, CDN for static assets and database caching. We plan peak load in infrastructure and run load tests before Black Friday and other peaks – every second of load time can noticeably reduce conversion.

Which payment methods and providers do you recommend?

For the German market: credit card, PayPal and SEPA direct debit; additionally Klarna, Apple Pay and Google Pay. We integrate Stripe, Mollie or PayPal with minimal development effort.

Typical pricing models (overview)

Comparison: typical pricing models for software and IT projects
ModelWhen it fitsBudget & flexibilityTypical risks
Fixed price (fixed scope)Clearly defined scope, stable requirements, repeatable delivery.Predictable total cost; little room for change without a change order.Scope creep leads to change orders or quality trade-offs.
Time & MaterialDiscovery, legacy, evolving requirements, or close collaboration.Maximum flexibility; budget transparent via hourly or daily rates.Without prioritisation, effort can grow—backlog and reviews matter.
Retainer / maintenance packageOngoing operations, updates, small features, and support.Agreed capacity per month; predictable follow-on cost.Large changes may still need a separate estimate.
Hybrid (milestone + T&M)MVP or phased releases with clear go-lives, then iterate.Core delivery fixed price; extensions on a time-and-materials basis.Define contractually what is in scope vs. extra work.

Calculators on this page provide indicative ranges; we choose the right model with you based on risk, scope, and planning horizon.

Costs & next steps

The ranges shown are indicative. For a binding quote we discuss scope, priorities and funding options in a free intro call. Many digitalization projects qualify for grants – try our funding calculator.

Browse all cost calculators, explore services and typical solutions. Questions about Online Shop? Contact us.

The calculator result for Online Shop is indicative only – a binding budget follows scope alignment, data review, and quality targets.

Plan follow-on costs

  • Operations and maintenance separate from the initial build
  • Internal key users and training
  • Monitoring and support after go-live

Next steps after the calculator

  • Intro call: funding and phased delivery
  • Discovery, pilot, or rollout matched to risk
  • Documented assumptions and exclusions in the quote

Compare related calculators in the costs hub for edge cases (integrations, compliance, parallel run).

Next Step

Need a custom cost estimate for your project?

We provide a realistic effort estimate based on your specific requirements.

30 min strategy call – 100% free & non-binding

Online Shop Cost Calculator | Groenewold IT Solutions