The verdict in three sentences
A professional bilingual website costs 10,000 to 22,000 EUR in 2026, a +30 to +50 % premium over a monolingual site. Human translation (0.10-0.18 EUR/word), hreflang management, and a clear language structure are non-negotiable for targeting export markets. The credibility-killing trap: raw machine translation can cost up to 40 % of credibility with a foreign B2B buyer.
The real cost per language
Adding a language isn't just translation: it's extra development, SEO, and maintenance. Here is the 2026 breakdown.
| Item | 2026 Cost (EUR) | Note |
|---|---|---|
| Monolingual brochure site (base) | 7,000 - 14,000 | Baseline |
| Multilingual structure premium | +30 to +50 % | dev + config |
| Professional translation (per language) | 0.10 - 0.18 EUR/word | human |
| Arabic translation (RTL) | 0.12 - 0.22 EUR/word | + RTL dev |
| Hreflang configuration | 600 - 1,500 | one-off |
| Multilingual maintenance/year | 1,200 - 3,000 | per year |
For a 10,000-word site, one extra language's translation alone represents 1,000 to 1,800 EUR. Realistic total for a polished bilingual site: 10,000 to 22,000 EUR.
International SEO impact by approach
Not all multilingual strategies are equal. Here is the 2026 effect on export visibility.
| Approach | Relative cost | B2B credibility | International SEO |
|---|---|---|---|
| Raw machine translation | + 0 % | Low (-40 %) | Penalizing |
| Machine + human review | +15 % | Medium | Acceptable |
| Professional human translation | +30-50 % | High | Optimal |
| Translation + local SEO adaptation | +50-70 % | Very high | Excellent |
| Sub-domain per country | variable | High | Strong at volume |
Correctly implemented hreflang prevents duplicate content across versions and routes each market to its language: it's the technical foundation of international SEO.
Mini case study
Julie, director of an exporting F&B company in Dubai, wants to reach English- and Arabic-speaking importers. Her current site (one language) generates 3 % of revenue from exports. She invests 16,000 EUR in a multilingual version with professional translation and hreflang, plus 2,000 EUR/year maintenance. Within 12 months, the export share climbs to 11 % of her 1.4 M EUR revenue, i.e. +112,000 EUR in additional export sales. The return on the 16,000 EUR investment is reached in the first ramp-up quarter.
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FAQ
What's the exact premium for a bilingual site?
In 2026, expect +30 to +50 % over a monolingual site for structure, translation, and SEO. A third language (e.g. Arabic) adds another 20 to 35 %.
Is machine translation really penalizing?
Yes. Raw translation can cost up to 40 % of credibility with a B2B buyer and may hurt SEO. At minimum, a human review is essential.
What is hreflang and why is it critical?
It's the tag telling Google which language version to serve to which market. Misconfigured, it creates duplicate content; done right, it maximizes export visibility. Setup: 600 to 1,500 EUR.
Sub-directories or sub-domains?
For an SME, a language sub-directory structure is the simplest and most effective. Country sub-domains are only justified at high volume with a dedicated content budget.
How much does translation cost per word?
Between 0.10 and 0.18 EUR/word for professional translation in 2026, more for Arabic with RTL adaptation (0.12-0.22 EUR/word).
Let's scope your project. Tell us your target languages, word count, and export markets, and we'll price a multilingual site with hreflang (10,000 to 22,000 EUR) with a +2 to 4 week uplift on a standard project. 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.
