Translation Word Count Calculator
Estimate translation cost and time from word count, language pair, and rate per word.
Translation Word Count Calculator
Calculator
Adjust values & calculateEnter your values below. Every result is computed in your browser — no data is sent to any server.
Formula: Total Cost = (Word Count x Rate Per Word + Word Count x Proofreading Rate) x Rush Multiplier
Worked example — Total Cost: $750.00 | Time: 20 hours (~2.5 working days) | 20 pages
Formula
Total Cost = (Word Count x Rate Per Word + Word Count x Proofreading Rate) x Rush Multiplier
Where Word Count is the total number of source words, Rate Per Word is the translator charge per word, Proofreading Rate is the cost per word for review, and Rush Multiplier applies surcharges for expedited delivery (1.0 = standard, 1.5 = 50% rush surcharge).
Worked Examples
Example 1: Standard Business Document Translation
Problem:Translate a 5,000-word business report from English to Spanish at $0.12/word with proofreading at $0.03/word and standard delivery.
Solution:Translation cost = 5,000 x $0.12 = $600.00 Proofreading cost = 5,000 x $0.03 = $150.00 Rush multiplier = 1.0x (standard) Total cost = ($600 + $150) x 1.0 = $750.00 Estimated time = 5,000 / 250 wph = 20 hours (2.5 days)
Result:Total Cost: $750.00 | Time: 20 hours (~2.5 working days) | 20 pages
Example 2: Rush Legal Document Translation
Problem:Translate a 12,000-word legal contract from English to Japanese at $0.22/word, proofreading at $0.05/word, with 1.5x rush surcharge.
Solution:Translation cost = 12,000 x $0.22 = $2,640.00 Proofreading cost = 12,000 x $0.05 = $600.00 Subtotal = $3,240.00 Rush surcharge = $3,240 x 0.5 = $1,620.00 Total cost = $3,240 x 1.5 = $4,860.00 Estimated time = 12,000 / 250 = 48 hours (6 days)
Result:Total Cost: $4,860.00 | Time: 48 hours (~6 working days) | 48 pages
Frequently Asked Questions
How is translation cost calculated from word count?
Translation cost is typically calculated by multiplying the total word count of your source document by the rate per word charged by the translator. The per-word rate varies significantly depending on the language pair, subject matter complexity, and the translator's experience level. For example, common European languages like Spanish or French tend to have lower rates, while rare or complex languages such as Japanese, Korean, or Arabic command higher rates. Additional costs may include proofreading, formatting, and rush delivery surcharges. Most professional translation agencies quote based on source word count rather than target word count because it provides a predictable upfront estimate for clients.
What is a typical rate per word for professional translation?
Professional translation rates per word vary widely based on language pair and specialization. General translation for common European languages typically ranges from $0.08 to $0.15 per word. Technical, legal, or medical translations command higher rates of $0.15 to $0.30 per word due to the specialized knowledge required. Rare language pairs such as Finnish to Japanese or Icelandic to Arabic can cost $0.20 to $0.40 or more per word. Certified translations for legal documents often have a minimum fee plus a premium per-word rate. Machine translation post-editing services are generally cheaper at $0.04 to $0.08 per word but may sacrifice quality for certain content types.
How long does professional translation typically take?
A professional translator typically translates between 2,000 and 3,000 words per day for general content, which equates to roughly 250 to 400 words per hour of sustained work. Technical or highly specialized content may slow this rate to 1,500 to 2,000 words per day. Literary translation is even slower, sometimes only 1,000 to 1,500 words per day due to the creative effort involved. These estimates assume an 8-hour working day and include time for research and quality checking. For large projects, agencies may assign multiple translators to work in parallel, significantly reducing turnaround time while using translation memory tools to maintain consistency across the team.
What factors affect translation pricing beyond word count?
Beyond raw word count, several factors influence translation pricing significantly. Subject matter complexity is a major driver, with medical, legal, and technical translations costing 50 to 100 percent more than general content. File format matters because PDFs and scanned documents require additional formatting work. Turnaround time is critical, as rush jobs typically carry a 25 to 100 percent surcharge. The language pair rarity directly affects cost, with less commonly translated pairs being substantially more expensive. Certification and notarization for official documents add fixed fees. Desktop publishing, localization for software interfaces, and transcreation for marketing content all carry premium rates above standard translation.
How do I count words accurately for a translation quote?
Accurate word counting depends on your document format and the tools available. Microsoft Word and Google Docs have built-in word count features accessible from the tools or review menu. For PDF files, you can copy the text into a word processor or use specialized CAT (Computer-Assisted Translation) tools like SDL Trados, MemoQ, or Wordfast, which provide precise counts and can analyze repetition rates. Repetitions and fuzzy matches in translation memory can reduce costs by 30 to 70 percent for recurring content. For websites, use a web scraping tool to extract all translatable text. Remember to include text in images, charts, and embedded elements that may not appear in a standard word count but still require translation.
What is text expansion and how does it affect the target document?
Most language pairs do not preserve length. English translated into Romance languages such as Spanish, French or Portuguese usually expands, commonly cited in the region of 15 to 30 percent more words, because those languages use more articles, prepositions and analytic constructions. Other pairs contract instead. Expansion does not change a source-word quote, but it does affect layout, subtitle timing, button labels and page counts, so budget for the desktop publishing work it creates.
Should a quote be based on source word count or target word count?
Source-based quoting fixes the price before work begins, because the source file can be counted immediately, which is why most agencies prefer it. Target-based quoting is billed after delivery and exposes the client to expansion in the target language, but it is sometimes unavoidable when the source is an uncountable format such as a scanned image, audio or handwritten notes. If a quote is target-based, ask for an estimated range and a cap before authorising work.
How do translation memory fuzzy matches change the billable word count?
A CAT tool compares each new segment against the translation memory and sorts it into bands: a repetition or a 100 percent match needs only checking, a high fuzzy match in the upper nineties needs light editing, and a lower band needs substantial rewriting. Each band is billed at a discounted share of the full rate, producing a weighted word count rather than a raw one. Ask for the analysis log so you can see the band distribution behind the discount.
Why do some markets charge per line, per page or per character?
The unit follows what the source language makes countable. German translators traditionally bill by the standard line of a fixed number of keystrokes, because German compounding makes a word count a poor measure of effort. Japanese and Chinese are commonly billed per source character, since those scripts have no spaces to split on. Certified and sworn translation is often billed per page. Convert every quote to one common unit before comparing suppliers.
What is the difference between translation, localization and transcreation for budgeting?
Translation renders the meaning of the source text. Localization adapts everything around it as well, including dates, currency, units, addresses, imagery, legal notices and character encoding, and it usually carries an engineering or desktop publishing component on top of the word rate. Transcreation rewrites marketing copy to achieve the same effect on a new audience and is often billed by the hour or by project, because output word count bears little relation to effort.
References
Reviewed for accuracy by Daniel Agrici, Founder & Lead Developer · Editorial policy
Related Calculators
🧮Word Count Calculator
Calculate word count with inputs, formulas, and instant results.
🧮Unique Word Counter
Count unique words and calculate vocabulary richness (type-token ratio) in text.
🧮Syllable Counter
Count the number of syllables in a word or passage of text.
🧮Smog Index Calculator
Calculate the SMOG readability index based on polysyllabic word count.
🧮Words Per Page Calculator — Font, Size & Spacing
Estimate the number of pages from word count based on font, size, and spacing.
🧮Speaking Time Calculator
Estimate speech or presentation duration from word count and speaking pace.
🧮Syllable Count Estimator Calculator
Calculate syllable count estimator with inputs, formulas, and instant results.