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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. Non-binding calculator range: EUR 5,950 – 99,645 excl. VAT. Shopware scenarios: EUR 16,362 – 41,860 excl. VAT.

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

The Online Shop cost calculator provides an immediate, non-binding cost range without requiring an email address or registration. It combines your project inputs with documented calculation rules and experience from more than 250 software projects.

  • Instant result without email or registration
  • Transparent inputs and calculation path
  • One-off and recurring cost components separated
  • Non-binding guidance based on real project experience

Read the documented calculation methodology

Use the calculator right below for an instant first estimate – no sign-up and no fixed-price commitment. We align scope, risks, and assumptions in a conversation before a binding quote.

Online Shop Costs at a Glance

Interactive Online Shop Cost Calculator

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?

How the Online Shop cost calculator calculates your range

The calculation follows six visible stages. All figures remain planning values until scope and assumptions have been reviewed.

  1. 1. Capture inputs

    The calculator records the visible project, volume, complexity and operating parameters selected on this page.

  2. 2. Add fixed components

    Fixed base modules and selected add-ons are added without mixing them with recurring charges.

  3. 3. Apply multipliers

    Quantity, complexity and scope factors multiply only the cost components identified for them in the calculator model.

  4. 4. Create the range

    The calculator applies its documented lower and upper uncertainty factors to the base result; ROI views keep investment and savings visible separately.

  5. 5. Round and calibrate

    Monetary result fields are rounded to the nearest whole euro. Public project-cost components are calibrated with the centrally maintained display factor.

  6. 6. Classify the result

    The result is shown as non-binding guidance. A binding quote requires scope, data, integrations, risks and acceptance criteria to be reviewed.

Included

  • Inputs shown in the calculator
  • Calculator-specific base values and factors
  • Displayed one-off and recurring result components

Not included

  • Requirements not selected in the calculator
  • Unknown data migration and third-party licence costs
  • Taxes, legal advice and a binding delivery commitment

Efficiency or discount factor: A central display factor of 0.7 is applied to public project-cost components to keep all calculators aligned with the currently reviewed pricing basis. It is not a customer-specific discount; customer-entered wages, revenues and existing operating costs are not reduced.

Why this is not a binding quote: The calculator cannot verify complete requirements, third-party dependencies, data quality, legal constraints or acceptance criteria.

Technical responsibility and review

Technical owner
Björn Groenewold
Role
Managing Director and software engineer
Expertise
Software development and software estimation
First published
Last technical review
Price basis
September 2026

Costs for Online Shop depend on scope, risk, and quality expectations. The calculator provides an initial range.

Sizing costs for Online Shop

  • Binding quotes follow a short scope alignment
  • Include operations, maintenance, and potential grants
  • Many mid-market digitalization projects may qualify for funding

Transparent quoting

  • Milestones and documented assumptions
  • Clear exclusions in the quote
  • Consulting and development delivered from Germany

We quote transparently with dedicated contacts from East Frisia.

Sample calculations & scenarios

Concrete project profiles with assumptions and indicative budgets—useful for internal alignment alongside the calculator.

Cost examples

All cost examples for this calculator

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
EUR 5,950 – 9,100 excl. VAT
  • Up to 100 products
  • Standard payment methods
  • Responsive design
  • 4–8 weeks development
Most Popular
Professional Shop
EUR 16,362 – 41,860 excl. VAT
  • Unlimited products
  • Custom design
  • ERP/inventory management
  • 8–16 weeks development
Enterprise / B2B Shop
EUR 65,152 – 99,645 excl. VAT
  • 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: EUR 43 – 1,805/month excl. VAT via the hosting cost calculator
  • Maintenance: EUR 0 – 840/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.

Related Topics

Online Shop ServicesShopware vs. MagentoWeb Development CostsSoftware Maintenance Costs

Frequently asked questions

Online Shop Costs

Costs & budget

How much does a simple online shop cost?

According to the online shop cost calculator, the non-binding project orientation is EUR 5,950 – 99,645 excl.

VAT. A WooCommerce shop with a template and small catalogue starts at EUR 5,950 – 9,100 excl. VAT.

How much does a professional B2B shop cost?

Shopware scenarios with payments, shipping and B2B/ERP integration are EUR 16,362 – 41,860 excl.

VAT. Custom shops with premium design and the full feature set are EUR 65,152 – 99,645 excl. VAT. Configurators or marketplace features sit outside these calculator scenarios.

What are the ongoing costs of running an online shop?

Shop maintenance according to the calculator: EUR 0 – 840/month excl.

VAT. Infrastructure and SLA via the [hosting cost calculator](/en/costs/hosting-operations): EUR 43 – 1,805/month excl. VAT. Payment providers: approx. 1.4–3% per transaction.

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
Alternatively:Book a consultation

Shop systems

Shopware, WooCommerce or custom – which is better?

WooCommerce (EUR 5,950 – 9,100 excl.

VAT): flexible for smaller shops. Shopware (EUR 16,362 – 41,860 excl. VAT): strong for German B2B. Custom (EUR 65,152 – 99,645 excl. VAT): 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

Request a consultation

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

Get in touch

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.

More about online shop development

Online shop: 3-year TCO transparent

How we calculate the total cost of your online shop

Platform, feature scope, integrations, and operations—so you see the real 3-year TCO upfront.

  1. 1. Platform choice and license

    We compare Shopware, WooCommerce, headless, or marketplaces and calculate license costs over 3 years.

  2. 2. Assortment and feature scope

    Variants, B2B logic, multi-currency, and marketing automation cost very differently to implement. We estimate per feature.

  3. 3. Integrations (ERP, payment, shipping)

    We calculate interfaces individually instead of lumping them as 'misc'. That's where the largest efforts often live.

  4. 4. Hosting, care, marketing

    We name hosting (with peaks), care, and SEO/marketing. So you see what the shop really costs—not only implementation.

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.

What determines the costs, and what comes next?

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).