Can I try BookTranslator for free?

No. BookTranslator does not grant trial credits or provide a general free full translation. You can see the final price before checkout, then pay per task, buy one-time credits, or choose a Pro plan.

Which option should I choose: Pay as you go, Free, or Pro?

Pay as you go is best for a one-off translation without an account. Free is designed for occasional signed-in use with credits you can top up. Pro is best for recurring translation volume because it includes monthly credits, lower credit rates, priority translation speed, and permanent task history.

How is the cost of a translation calculated?

Translation usage is primarily based on the document's word count. Use the calculator on this page for an estimate; the final amount can vary when a file requires more complex processing.

Do I need a subscription to translate a book?

No. You can pay for an eligible task as a guest or use a Free account with available credits. A Pro subscription is optional and is intended for people who translate regularly and want a lower effective rate.

What is the difference between monthly credits and purchased credits?

Monthly credits are included with a Pro subscription and refresh at the start of each billing cycle. Purchased credits are a one-time top-up, remain in your account until used, and do not expire.

Do unused Pro monthly credits roll over?

No. Unused monthly credits from the current subscription cycle expire when the next cycle begins, then your new monthly credit allowance is added.

Can Pro members buy extra credits?

Yes. You can buy a one-time credit package whenever you need a short-term top-up. If you regularly need more credits each month, changing your Pro tier is usually better value.

Can I change my Pro tier or billing period later?

Yes. Upgrades apply after payment is confirmed and may include a prorated charge for the rest of the current billing period. Downgrades are scheduled for the next renewal so you keep your current plan through the end of the period.

Is annual billing cheaper than monthly billing?

Annual Pro billing includes a discount compared with paying monthly. The tier selector shows the current savings and effective monthly rate before you continue to checkout.

How are payments processed?

Subscription and one-time credit payments are processed securely by Stripe. The checkout page shows the final price and currency before you confirm the purchase.

Pricing - BookTranslator

Pay as you go

From$3.99

Best for one-off translations. Pay per task with no subscription or long-term commitment. Price calculated based on words count.

Pay only for what you use
No registration or subscription required
Translate up to 300,000 words per task
History saved for 7 days

Free

$0per month

Best for flexible, occasional use. Translate with credits, top up anytime, and keep unused credits for future translations.

Everything in Pay as you go, plus:

Lower price than Pay as you go
Pay with purchased credits
Buy more credits anytime for future translations
Purchased credits never expire
No word limits
History saved for 30 days

Pro

Best value

Billed annually

Best for frequent translation needs. Get monthly credits and lower rates for ongoing translation work.

How many credits do you need per month?

50K50,0001M

Loading prices...

Everything in Free, plus:

Lower credit rates than Free
Save ⁦60%+⁩ vs Pay as you go
50K credits per month
Monthly credits renew every month
Priority translation speed
History saved forever

BookTranslator contributes 1% of your subscription to remove CO₂ from the atmosphere through Stripe Climate

Need More Credits?

Buy one-time credit packages at the same price for every user. Purchased credits never expire.

Compare plans

Choose the plan that matches how often you translate, how much history you need, and whether you want lower credit rates.

Feature	Pay as you go Pay per task Starting at $3.99	Free $0/month No credits included	Pro Loading prices... Tiered credits/month

Guest, Free, and Pro plan feature comparison
Usage
Best for	One-off translations without an account	Occasional signed-in translation	Regular translation with predictable monthly volume
Account	No account needed	Account required	Account required
Word limits	Up to 300,000 words per task	No word limits	No word limits
Credits and billing
Payment model	Pay per task	Buy credits as needed	Monthly or annual subscription
Monthly credits			Tiered credits/month
Extra credits		Buy anytime	Change tier or buy one-time credits
History and speed
History	Auto-deletes after 7 days	Saved for 30 days	Saved forever
Translation speed			Priority speed

A typical 50,000-word book costs about 4,900 credits: $1.96 on Free or $0.98 on Pro.

Translation Cost Calculator

Calculate the cost to translate your book based on words count to see which plan is the best fit for you.

Word count

Price table

Word count	Price for Guest	Credit cost (per 1,000 words)	Price for Free & Pro
1 - 30,000	$3.99	100	1,000 credits
30,001 - 50,000	$4.99	95	0 credits
50,001 - 100,000	$7.99	85	0 credits
100,001 - 150,000	$11.99	75	0 credits
150,001 - 200,000	$15.99	65	0 credits
200,001 - 300,000	$21.99	55	0 credits
300,001+	N/A	45	0 credits
Total for 10,000 words	$3.99		1,000 credits

Cost to translate 10,000 words

Pay as you go

$3.99

One-time payment, no account needed

Free

$0.40

1,000 credits × $0.40/1,000 credits

Save 90% vs Guest

Pro

Best Price

$0.2050% off

1,000 credits × $0.20/1,000 credits

Save 95% vs Guest

Prices shown are estimates. Final cost may vary based on content complexity.

Loved by readers worldwide

Real reviews from readers who translated their books with BookTranslator.

4.6

The translation is indeed very well done, staying very close to the technical terms used, without compromising the understanding of the text. It maintains the layout and arrangement of the text. Reliable. Excellent quality.

sergioBrazil

This app has been a game-changer for translating books. The translations are accurate and preserve the tone and meaning of the original text really well, which is hard to find in most translation tools. It handles longer texts smoothly without losing context, and the output reads naturally rather than feeling robotic or overly literal.

MohamediNetherlands

I really love using this translation software. The translations are very natural and accurate, and errors are extremely rare. It is easy to use, reliable, and the results are consistently high quality.

Hasko DoraGermany

Whenever I had issue with the translation - formating, etc., the support of BookTranslator.app helped me within hours.

Tereza VojtíškováCzechia

I translate from multiple languages and multiple file formats, the program never fails to deliver.

Antonia HallBulgaria

The translation is indeed very well done, staying very close to the technical terms used, without compromising the understanding of the text. It maintains the layout and arrangement of the text. Reliable. Excellent quality.

sergioBrazil

This app has been a game-changer for translating books. The translations are accurate and preserve the tone and meaning of the original text really well, which is hard to find in most translation tools. It handles longer texts smoothly without losing context, and the output reads naturally rather than feeling robotic or overly literal.

MohamediNetherlands

I really love using this translation software. The translations are very natural and accurate, and errors are extremely rare. It is easy to use, reliable, and the results are consistently high quality.

Hasko DoraGermany

Whenever I had issue with the translation - formating, etc., the support of BookTranslator.app helped me within hours.

Tereza VojtíškováCzechia

I translate from multiple languages and multiple file formats, the program never fails to deliver.

Antonia HallBulgaria

The translation is indeed very well done, staying very close to the technical terms used, without compromising the understanding of the text. It maintains the layout and arrangement of the text. Reliable. Excellent quality.

sergioBrazil

This app has been a game-changer for translating books. The translations are accurate and preserve the tone and meaning of the original text really well, which is hard to find in most translation tools. It handles longer texts smoothly without losing context, and the output reads naturally rather than feeling robotic or overly literal.

MohamediNetherlands

I really love using this translation software. The translations are very natural and accurate, and errors are extremely rare. It is easy to use, reliable, and the results are consistently high quality.

Hasko DoraGermany

Whenever I had issue with the translation - formating, etc., the support of BookTranslator.app helped me within hours.

Tereza VojtíškováCzechia

I translate from multiple languages and multiple file formats, the program never fails to deliver.

Antonia HallBulgaria

Excellent platform with great value for money and outstanding translation, including the use of Portuguese expressions to make the content easier to understand.

MateusBrazil

The translation of cranium novel English to Bangla was so perfect. Glad to use this website.

Jobaida KhanomBangladesh

It was easy to use and only took minutes:)

Catherine SiennaUnited States

Quick as the wind. And cheap.

David MarinUnited States

Easy to use, quick responds thru email.

CK UENAustralia

Excellent platform with great value for money and outstanding translation, including the use of Portuguese expressions to make the content easier to understand.

MateusBrazil

The translation of cranium novel English to Bangla was so perfect. Glad to use this website.

Jobaida KhanomBangladesh

It was easy to use and only took minutes:)

Catherine SiennaUnited States

Quick as the wind. And cheap.

David MarinUnited States

Easy to use, quick responds thru email.

CK UENAustralia

Excellent platform with great value for money and outstanding translation, including the use of Portuguese expressions to make the content easier to understand.

MateusBrazil