Return on investment data for localization, industry pricing benchmarks, and what it costs to retrofit internationalization after the fact.
ROI of localization
Named studies
| Source | Finding | Details |
|---|
| Forrester / DeepL | 345% ROI over 3 years | Total Economic Impact study. EUR 2.79M total efficiency savings, 90% reduction in translation time. |
| Nimdzi Insights | 96% report positive ROI; 65% achieve 3x+ | Survey across industries. |
| LISA | 1,900% ROI | $2.5B localization investment generated $50B in global sales. |
| HubSpot | 9,500% ROI | $1,500 Spanish content form → $144,000 ARR. |
| Lokalise | 140–3,000% ROI | Range across customer base. |
| Transifex | 1,140% ROI (improving to 1,520% with TM) | $192K investment generating $2.19M revenue. |
ROI by maturity stage
| Stage | Typical ROI | What's happening |
|---|
| Market entry | 200% (2:1) | New language = new audience. Translation costs offset by first customers. |
| Expansion | 1,000% (10:1) | Translation memory reduces per-page costs. Content compounds. |
| Mature markets | 3,000% (30:1) | Maintenance costs minimal. International revenue flows at near-zero incremental cost. |
Source: Nimdzi Insights, industry benchmarks.
Additional ROI data points
- Companies that translate are 1.5x more likely to experience revenue growth (industry benchmark)
- 84% of companies report profit increases from localization (industry survey)
- Knowledge base implementations: 300–500% ROI within first year (Nimdzi)
- Early movers see ROI in 3–6 months; late movers need 12–18 months (industry benchmark)
- Bain & Company: 5% increase in retention can boost profits by 25–95%
Translation industry pricing
Human translation
| Type | Per-word rate | Source |
|---|
| Standard technical translation | $0.09–0.35 | Nimdzi, GALA |
| Machine Translation Post-Editing (MTPE) | $0.045–0.10 | Industry benchmark (50–70% discount vs. human) |
| Per-page equivalent (500 words/page) | $5–15/page | Derived |
Machine translation API costs
| Provider | Cost | Notes |
|---|
| Google Translate API | ~$20/million characters | Standard pricing |
| DeepL API | ~$25/million characters | Pro plan |
| DeepSeek | $0.27/million input tokens | Lowest-cost LLM |
The hidden cost of generic MT: API costs are negligible (~$50 for 200 pages × 5 languages). The engineering time to fix code blocks, ensure consistency, reformat, and deploy is the real cost: 40–80 hours ($4,000–$12,000) per the analysis in our cost comparison blog post.
PageTurner pricing
- $0.05–0.15 per page per language (depending on complexity)
- Updates cost 60–80% less (translation memory reuses unchanged content)
- Example: 200 pages × 5 languages = ~$100 initial, ~$25/year maintenance
Cost of not localizing
Retrofit costs
| Metric | Number | Source |
|---|
| Retrofitting i18n into established product | $500K–$2M | Lingoport |
| Cost reduction from early i18n implementation | 65% | Lingoport |
| i18n bugs avoided by early implementation | 90% | Lingoport |
| Average i18n bugs per release (when retrofitted) | 25 | Lingoport |
| Annual savings from early bug detection | $760,000/year | Lingoport case study |
Localization failures
| Company | What happened | Cost | Source |
|---|
| HSBC | "Assume Nothing" translated as "Do Nothing" | $10M rebrand | Industry case study |
| WhatsApp | Untranslated German terms of service | EUR 250,000 fine | German court ruling |
| Amazon Sweden | Obscene mistranslations at 2020 launch | Remediation + reputation damage | Press coverage |
| Venngage | Displayed USD instead of local currency in South America | Significant churn | Venngage/ProfitWell |
Revenue opportunity cost
| Metric | Number | Source |
|---|
| International revenue (fast-growth SaaS) | 31–32% of total | OpenView Partners |
| International revenue (slow-growth SaaS) | 20% of total | OpenView Partners |
| Revenue gap for $250M company | $80M+ annually | Derived |
| Potential international revenue lost without localization | 40–60% | Industry estimate |
| Customer acquisition cost premium in non-localized markets | 3–5x higher | Industry estimate |
Support cost reduction
| Metric | Number | Source |
|---|
| Support cost reduction with multilingual docs | 25–60% | Gartner |
| Technology industry ticket deflection rate | 23% | Industry benchmark |
| B2B ticket deflection with integrated docs | 39% | Industry benchmark |
| Cost per support ticket | $100–280 | Industry benchmark |
| Response time improvement with multilingual knowledge base | 20–80% | Language I/O |
| First-month support ticket reduction with native-language onboarding | 35% | Industry benchmark |
| TTFV reduction with localized onboarding | 30% | Industry benchmark |