The verdict in three sentences
A multilingual NL/EN/DE website for a Dutch exporter costs between 12,000 and 35,000 EUR in 2026, base included. Each language adds 12 to 18 % to the budget, plus professional translation at 0.10-0.18 EUR/word. With clean hreflang markup and multilingual maintenance, export leads rise 25 % on the German- and English-speaking markets.
The budget language by language
The cost of a multilingual site is not linear: the base (design, build, structure) is shared, then each language adds translation, integration and local SEO. Here are the 2026 ballpark figures.
| Line item | 2026 range |
|---|---|
| Technical base + design (1 language) | 12,000 - 35,000 EUR |
| Extra language (integration) | +12 to +18 % of base |
| Professional translation | 0.10 - 0.18 EUR/word |
| hreflang + sitemap configuration | 1,200 - 3,000 EUR |
| International SEO per market | 1,500 - 4,000 EUR / language |
| Multilingual maintenance | 400 - 900 EUR/month |
For a site of 6,000 words per language, translating NL into EN + DE means 12,000 words, that is 1,200 to 2,160 EUR of pure translation, before domain-expert review.
Why hreflang changes everything
hreflang markup tells Google which version to serve based on the user's language and country. Configured wrong, it causes duplicate content and cannibalisation between versions. Here are the common mistakes and the cost they avoid.
| Configuration | SEO risk | Business impact |
|---|---|---|
| No hreflang | NL/DE cannibalisation | -20 to -40 % DE visibility |
| hreflang without x-default | Wrong default version | Bounce rate +15 % |
| Raw machine translation | Quality penalty + credibility | -30 % B2B conversion |
| hreflang + pro translation | Clean per-market indexing | +25 % export leads |
| Subdirectory URLs /de/ | Consolidated authority | Faster SEO |
For a B2B exporter, credibility rules: unreviewed machine translation destroys the trust of a German industrial buyer.
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Mini case study
Anna, sales director of a components maker in Amsterdam, targets Germany and the United Kingdom. Trilingual NL/EN/DE quote: base 19,000 EUR + 2 languages at 15 % = 5,700 EUR + 12,000-word translation at 0.14 EUR = 1,680 EUR + hreflang 2,200 EUR. Total: 28,580 EUR, 12-week timeline. Result at 9 months: +25 % export leads, that is 6 extra qualified enquiries a month. With an average export order of 18,000 EUR and a 12 % close rate, that is 13,000 EUR of additional monthly revenue. The investment pays back in under 3 months of margin.
FAQ
How much does each extra language cost? Budget 12 to 18 % of the base for integration, plus translation at 0.10-0.18 EUR/word. One more language on a 20,000 EUR base adds roughly 3,000 to 4,000 EUR all in.
Is machine translation enough? Not for B2B export: raw translation drops conversion by 30 %. Use assisted translation reviewed by a native domain-expert translator.
How long for a trilingual site? Budget 8 to 14 weeks, translation and business validation loops often being the critical path.
Is hreflang really essential? Yes: without it your versions cannibalise each other and you lose 20 to 40 % visibility on secondary markets.
What maintenance for multilingual? 400 to 900 EUR/month to keep translations, hreflang tags and editorial consistency aligned on every update.
Let's scope your project. Tell us your target languages, content volume and priority markets, and we will quote the base, translation and international SEO. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
