Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
free of charge
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "free of charge" is correct and usable in written English.
You can use the phrase when you want to indicate that something is being given or done without any cost or payment. For example: "The vet offered to vaccinate my cat free of charge."
✓ Grammatically correct
News & Media
Science
Formal & Business
Academia
Wiki
Alternative expressions(20)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
58 human-written examples
Provided Free of Charge.
News & Media
She agreed, free of charge.
News & Media
It was free of charge.
News & Media
Free of charge.
News & Media
They even provided lawyers free of charge.
News & Media
Free of charge: the Bunny Williams panache.
News & Media
These ideas are free of charge.
News & Media
Tours are available free of charge.
News & Media
Bicycles are provided free of charge.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
2 human-written examples
ft. side building free-of-charge.
Formal & Business
Routine vaccines are free-of-charge.
Science
Expert writing Tips
Best practice
When advertising a service or product, use "free of charge" to clearly communicate that there are no hidden costs involved. This builds trust and encourages potential customers to take advantage of the offer.
Common error
Do not use phrases like "absolutely free of charge". The word "absolutely" is redundant as "free of charge" already implies that there is no cost involved.
Source & Trust
82%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "free of charge" functions primarily as an adjectival phrase, modifying a noun to indicate that something is provided without cost. As Ludwig AI explains, it indicates something being given or done without payment.
Frequent in
News & Media
35%
Science
24%
Wiki
18%
Less common in
Formal & Business
13%
Academia
10%
Ludwig's WRAP-UP
In summary, "free of charge" is a grammatically correct and highly versatile adjectival phrase used to indicate that something is provided at no cost. As indicated by Ludwig AI, this phrase is appropriate in both formal and informal settings, spanning across news, scientific, business, academic, and general contexts. Synonyms like "at no cost", "gratis", and "complimentary" can be used to add variety to your writing. When using this phrase, ensure that you avoid redundancy by omitting unnecessary qualifiers like "absolutely". By understanding its function, purpose, and register, you can effectively incorporate "free of charge" into your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
free
A more general term, but often interchangeable in many contexts.
for free
An informal alternative to "free of charge".
at no cost
More formal and direct, suitable for business or legal contexts.
without charge
Emphasizes the absence of any fee or payment.
without payment
Directly states that no payment is required.
gratis
A more formal and somewhat archaic term for "free".
at no expense
Highlights the fact that the recipient does not bear any financial burden.
complimentary
Often used in hospitality or marketing to suggest a gesture of goodwill.
for nothing
More informal and emphasizes the lack of monetary exchange.
on the house
Idiomatic, typically used in restaurants or bars when something is offered without payment by the establishment.
FAQs
What's the difference between "free" and "free of charge"?
While both terms indicate that something is provided without cost, "free" is more general. "Free of charge" explicitly emphasizes that no payment is required, clarifying that there are no hidden fees or obligations.
When is it appropriate to use "free of charge"?
"Free of charge" is suitable in both formal and informal contexts to emphasize that something is provided without any cost. It's often used in business, advertising, and customer service.
Are there synonyms for "free of charge" that I can use to vary my writing?
Yes, you can use synonyms such as "at no cost", "without charge", "gratis", or "complimentary", depending on the context and desired tone.
Is it redundant to say "completely free of charge"?
Yes, saying "completely free of charge" can be seen as redundant because the phrase "free of charge" already implies that there are no costs involved. Using simply "free of charge" is usually sufficient.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.6/5
Expert rating
Real-world application tested