Japanese Translation Services

Day Translations provides English to Japanese and Japanese to English translation for business, legal, medical, technical, digital and official documents. Projects are matched to native-language linguists with relevant subject-matter experience and reviewed through ISO 17100 quality workflows.

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500+ languages
24/7 support
ISO 17100 quality process
ISO 27001 information security
Language services since 2007

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Language direction

English to Japanese and Japanese to English Translation Services

Japanese projects often serve very different audiences depending on the language direction. We scope the target reader, purpose, terminology and level of formality before translation begins, rather than treating the language pair as a simple word-for-word conversion.

English日本語

English to Japanese Translation Services

English to Japanese translation is used for market entry, corporate communication, websites, software, product content, legal material and technical documentation intended for Japanese readers. The translation needs to reflect the relationship between the writer and reader, the expected level of formality and the conventions of the content type.

For customer-facing and digital content, we also account for brand voice, interface context and terminology consistency so the Japanese reads as content written for the market, not text converted from English.

日本語English

Japanese to English Translation Services

Japanese to English translation supports international legal matters, corporate reporting, technical documentation, research, financial material and official records. Our linguists preserve the meaning and function of the Japanese source while producing clear English for the intended audience.

Where a document will be submitted to an institution or authority, certification and formatting requirements are confirmed before the project starts.

Translator matching

Japanese Translators Matched to Your Subject Matter

A Japanese contract, medical device file and automotive manual should not be assigned to the same generalist simply because the language pair is the same. Day Translations assigns projects according to language direction, document type, industry and intended use. Translators work into their native language and are supported by terminology resources and project-specific instructions where required.

For broader multilingual programs, our professional translation services use the same subject-matter matching and quality controls across additional languages.

01
Language direction
Translators work into their native language.
02
Document type
Contracts, manuals and clinical files follow different conventions.
03
Industry
Subject-matter experience in the relevant field.
04
Intended use
Where and how the translation will be read.

Supported by terminology resources and project-specific instructions where required.

500+
Languages: 24/7
Support: ISO 17100
Quality Process: ISO 27001
Information Security: Since 2007
Language Services

Language nuance

Why Japanese Translation Requires More Than Word-for-Word Accuracy

Japanese carries meaning through context, register and writing choices that do not map directly to English. Professional translation therefore requires decisions about how the content should sound to the person reading it, not only what each source sentence says.

Keigo and the Right Level of Formality

Business Japanese changes according to the relationship between the speaker or writer and the audience. Keigo, including respectful and humble forms, can be appropriate in formal corporate communication, customer service and official correspondence. The wrong register can make accurate information sound abrupt, distant or inappropriate. We define the audience and communication setting before selecting the level of formality.

Kanji, Hiragana and Katakana

Japanese uses kanji, hiragana and katakana together. Product names, imported terminology, technical vocabulary and user-interface labels may require different script choices. Consistency becomes especially important when the same terms appear across manuals, software, marketing and support content. Approved terminology can be maintained in a project glossary for ongoing programs.

Context, Intent and Cultural Meaning

Japanese frequently relies on context that may be explicit in English but left unstated in Japanese, and the same message can require different phrasing depending on who will read it. Our translators work from the purpose of the content, available context and client terminology so the final translation preserves intent as well as information.

By industry

Japanese Translation Services by Industry

Industry expertise matters because terminology, regulatory expectations and the purpose of a document can change how Japanese should be translated. We match the project to linguists familiar with the subject area and the type of content being delivered.

Japanese Business and Corporate Translation

We translate corporate communications, presentations, internal policies, supplier correspondence, proposals, reports and other business material for organizations working with Japanese customers, partners, employees and investors. The focus is clear business meaning, appropriate formality and consistent terminology across recurring communications.

Japanese Legal Translation

Contracts, corporate agreements, litigation documents, compliance material and intellectual property files require precise terminology and careful treatment of defined terms. Japanese legal projects are assigned to linguists with relevant legal experience. For broader multilingual matters, see our legal translation services.

Japanese Medical and Life Sciences Translation

We support healthcare, pharmaceutical, medical device and research content including clinical documentation, informed consent material, patient information, product documentation and regulatory content intended for Japanese-speaking stakeholders. Medical terminology and the intended use of each document are confirmed before assignment. Explore our healthcare translation services for wider clinical and healthcare language support.

Japanese Technical, Manufacturing and Automotive Translation

Japan is central to global manufacturing, automotive, electronics and engineering supply chains. We translate operating manuals, specifications, safety information, engineering documents, product instructions, supplier material and training content. Terminology management helps keep repeated technical terms consistent across product lines and document sets. See our manufacturing translation services for larger industrial programs.

Japanese Financial Translation

Financial statements, investor material, banking documents, audit content and corporate reports require accurate figures, terminology and document structure. We match Japanese financial projects to linguists familiar with financial and corporate language and maintain confidentiality throughout the workflow.

Japanese Technology and Software Translation

Technology projects can involve product documentation, help centers, user interfaces, SaaS content, cybersecurity material and developer-facing content. Translators work with context and approved terminology so the same feature, command or product term is represented consistently. For broader programs, see our technology translation services.

Localization

Japanese Localization for Websites, Software, Ecommerce and Games

Translation is only one part of adapting a digital product for Japan. Interfaces, navigation, product terminology, calls to action, images, layout and user expectations can all affect how content is understood. Japanese localization should be planned around the product and audience rather than added after the English experience is complete.

Website, Software, App and Ecommerce Localization

We localize websites, SaaS platforms, mobile apps, ecommerce content, product catalogs and support material for Japanese users. Projects can include linguistic review, terminology management, UI context, functional testing support and ongoing updates.

Learn more about our localization services.

What this covers

Websites, SaaS platforms and mobile apps
Ecommerce content and product catalogs
Linguistic review and terminology management
UI context and functional testing support

Japanese Game and Multimedia Localization

Games and entertainment content require more than direct dialogue translation. Character voice, honorifics, interface limits, subtitles, voice-over scripts and cultural references all affect the experience.

Day Translations supports in-game text, scripts, subtitles, dubbing and localization QA. See our video game translation and localization services for larger game projects.

What this covers

In-game text and scripts
Subtitles and voice-over scripts
Dubbing and localization QA
Character voice and honorifics

Have a Japanese project with specialist terminology?

Send the source content, language direction, intended audience and deadline. We will review the requirements and match the project to the appropriate Japanese linguist.

Request a Japanese Translation Quote

Certified

Certified Japanese Translation Services

Certified Japanese translations are commonly requested when documents need to be submitted to government agencies, courts, universities, employers or other institutions. Day Translations can provide a signed certificate of translation accuracy where certification is required.

Certification requirements vary by receiving organization. If your project is primarily an official document submission, review our certified translation services before ordering.

Common certified Japanese documents

Certificate of Translation Accuracy

Family registers and civil records
Marriage and identity documents
Academic transcripts and diplomas
Immigration and supporting documents
Court and legal records
Bank statements and financial records
Licenses, certificates and official correspondence

Document types

Japanese Documents and Content We Translate

Our Japanese document translation work covers one-time files as well as ongoing content programs. Typical projects include:

Contracts and agreements
Technical manuals and specifications
Clinical and medical documents
Financial and investor reports
Websites and software strings
Product catalogs and ecommerce content
Policies, training and HR material
Marketing and corporate communications
Academic and official records
Subtitles, scripts and multimedia content

Pricing

Japanese Translation Pricing

Standard Japanese translation is priced by source-word count. Day Translations uses tiered rates, so the per-word price decreases as project volume increases.

Final pricing can vary by language direction, subject matter, formatting, certification requirements, file type and turnaround. Certified documents and projects with specialist requirements may be quoted separately. For large or recurring Japanese programs, the applicable volume tier is confirmed before work begins.

Request a Japanese Translation Quote

Tiered per-word rates for Japanese translation by project size
Project Size	Japanese Translation Rate
Up to 2,000 words	$0.20 / word
2,001 to 5,000 words	$0.19 / word
5,001 to 10,000 words	$0.18 / word
10,001 to 25,000 words	$0.16 / word
25,001 to 50,000 words	$0.14 / word
50,001 to 100,000 words	$0.12 / word
100,001 to 999,999 words	$0.11 / word
1,000,000+ words	$0.10 / word

How it works

How Our Japanese Translation Process Works

Review the Content, Audience and Requirements
We confirm the language direction, document type, target audience, intended use, file format, deadline and any certification or regulatory requirements. For ongoing business content, we also collect approved terminology and style preferences.
Match the Right Japanese Linguist
The project is assigned based on language direction and subject matter. A legal contract goes to a legal linguist, while technical or clinical content is assigned to a translator with relevant domain experience.
Translation and Independent Review
The translator works from the source, project instructions and terminology resources. Under our ISO 17100 translation workflow, a second qualified linguist independently reviews the translation for meaning, terminology, completeness and consistency.
Quality Check, Formatting and Secure Delivery
Final quality checks cover formatting, numbers, names, terminology and project requirements before delivery. Sensitive files are handled through secure workflows supported by our ISO 27001 information security framework.

Why Day Translations

Why Choose Day Translations for Japanese Translation?

Native-Language Translators

Projects are assigned to linguists who translate into their native language and understand the intended audience.

Subject-Matter Matching

Legal, medical, technical, financial and digital content is matched according to the expertise the project requires.

ISO-Certified Quality

ISO 17100 workflows include independent linguistic review rather than relying on translation alone.

Secure Workflows

ISO 27001-aligned information security processes support confidential business and regulated content.

24/7 Project Support

Our team is available around the clock for global programs, urgent requests and time-sensitive documents.

One-Off and Enterprise Projects

We support individual certified documents as well as recurring, high-volume Japanese translation and localization programs.

Interpreting

Japanese Interpreting Services

When communication needs to happen in real time, Day Translations can provide Japanese interpreting for business meetings, conferences, legal matters, healthcare settings and other professional environments. Phone, video and in-person options are available depending on the assignment. Explore our professional interpreting services for scheduling and delivery options.

FAQ

Japanese Translation Services FAQs

Standard Japanese translation is $0.20 per word for projects up to 2,000 words, with tiered volume rates that decrease to $0.10 per word for projects of 1,000,000 words or more. Final pricing depends on language direction, subject matter, formatting, certification requirements, file type and turnaround. Certified or specialist projects may be quoted separately.

Turnaround depends on length, complexity, file format and review requirements. Short documents may be completed quickly, while technical, regulated or large-volume projects require additional time for terminology management and quality review. Expedited options can be discussed during quoting.

Yes. Day Translations supports both English to Japanese and Japanese to English projects, as well as Japanese paired with many other languages. The translator is selected according to the target language and subject matter.

Yes. Certified Japanese translations can include a signed certificate of translation accuracy for official use where required. Because requirements vary by recipient, confirm the institution or authority before ordering.

Day Translations assigns translators to work into their native language and matches them according to the content type and subject matter. This is particularly important for Japanese because register, terminology and context affect how natural the final text sounds.

Yes. We support Japanese legal, healthcare, life sciences, manufacturing, technical, financial and technology content. Specialist material is assigned to linguists with relevant subject-matter experience rather than a general-language translator.

We confirm the audience, relationship and purpose of the content before translation. The linguist then selects the level of formality appropriate to the communication, including keigo where the context requires it.

Yes. In addition to document translation, Day Translations provides Japanese website, software, app and game localization, along with phone, video and in-person interpreting for professional settings.

Get started

Request a Japanese Translation Quote

Tell us what you need translated, the language direction, intended audience and deadline. We will review the project, confirm the requirements and match it with the appropriate Japanese language specialist.

Request a Quote Now Speak to a Language Expert