"Ecommerce website development cost" is a high-intent query — searchers are budgeting, not browsing. Ranges below reflect US agency market rates for enterprise-quality delivery.
Shopify / Shopify Plus: $30K–$120K for custom theme + integrations; $150K+ for headless Hydrogen or complex B2B. Monthly apps and Plus license add $2K–$10K/month.
Adobe Commerce: $150K–$600K+ implementation; $5K–$40K/month retainers. License and cloud hosting are separate — see our Adobe Commerce pricing article.
WooCommerce B2B: $40K–$150K when architected with proper hosting and ERP sync — beware under-scoped $15K projects that collapse at scale.
Cost drivers: ERP/PIM integration, B2B pricing, multi-language, custom checkout, migration data volume, and compliance (PCI, HIPAA-adjacent).
Save without regret: Phased launches, template reuse where brand allows, and fixed discovery before build. Never cut QA or redirect mapping on migrations.
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