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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 to call
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "free to call" is correct and usable in written English. You can use it when indicating that someone is welcome to make a phone call without any restrictions or obligations. Example: "Feel free to call me if you have any questions." Alternative expressions include "welcome to call" and "at liberty to call."
✓ Grammatically correct
News & Media
Academia
Formal & Business
Science
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
57 human-written examples
"Feel free to call it an endorsement".
News & Media
Please feel free to call or email with any questions.
Academia
Please feel free to call or email me.
Academia
Feel free to call the hotline for updates.
You all feel free to call me Lady.
News & Media
Feel free to call it Country & B, or R&C.
News & Media
"That's O.K. He's gone, right?" "Feel free to call back.
News & Media
I was to feel free to call it quits anytime, anywhere.
News & Media
Please feel free to call or email me at any time.
Academia
Please feel free to call or email me with questions or to set up an appointment.
Academia
You should feel free to call faculty references given by students.
Expert writing Tips
Best practice
Pair the phrase with a specific timeframe, such as "feel "free to call" during office hours", to manage expectations while remaining polite.
Common error
Avoid using "free to call" when you exclusively mean that the phone line is toll-free (no cost). In that specific context, "toll-free number" or "free of charge" is more accurate to prevent ambiguity between 'permission to call' and 'the price of the call'.
Source & Trust
94%
Authority and reliability
4.9/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "free to call" functions as a predicative adjective phrase that signals permission or lack of restriction. According to Ludwig, it is most frequently preceded by the verb "feel" or "be", creating a welcoming gesture in communication.
Frequent in
News & Media
48%
Academia
32%
Formal & Business
20%
Less common in
Science
5%
Social Media
3%
Wiki
2%
Ludwig's WRAP-UP
The phrase "free to call" is a highly versatile and correct English expression. Ludwig shows that it is a standard fixture in professional environments, particularly within Academia and News & Media, used to invite dialogue and provide assistance. Whether used as "feel "free to call"" or in more formal constructions like "prime ministers were "free to call" elections", it consistently denotes an absence of obstacles. Ludwig AI confirms its status as a reliable choice for any writer looking to sound accessible and professional.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
welcome to call
Increases the level of warmth and hospitality in the invitation.
feel free to phone
Uses a different verb for communication while maintaining the exact same idiomatic structure.
at liberty to call
Significantly more formal and emphasizes the legal or official permission to make the call.
encouraged to call
Moves beyond simple permission to actively prompting the person to reach out.
please call
A direct request that removes the 'permission' aspect in favor of a polite command.
invited to contact
Broader than just calling and uses a slightly more formal tone often found in customer service.
may call
A direct modal verb usage that is concise but can sometimes sound overly clinical or authoritative.
permitted to call
Specifically refers to having the right or authorization to call, often in restricted contexts.
available to speak
Focuses on the accessibility of the person being called rather than the permission of the caller.
open to calling
Suggests a willingness to participate in a call, typically used in negotiation or scheduling.
FAQs
How to use "free to call" in a sentence?
You can use it to invite communication, for example: "If you have any questions about the report, please feel "free to call" my office at your convenience."
What can I say instead of "free to call"?
Depending on the tone, you can use alternatives like "<a href="/s/welcome+to+call" target="_blank" rel="alternative">welcome to call", "<a href="/s/at+liberty+to+call" target="_blank" rel="alternative">at liberty to call", or "<a href="/s/invited+to+contact" target="_blank" rel="alternative">invited to contact".
Is it correct to say "feel free to call"?
Yes, it is perfectly correct. As seen in Ludwig, this is the most common way the phrase is used, appearing frequently in both academic correspondence and major news publications.
What is the difference between "free to call" and "free to phone"?
There is no significant difference in meaning; "<a href="/s/free+to+phone" target="_blank" rel="alternative">free to phone" is simply a stylistic variation using a different verb, though "call" is much more common in American English.
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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
94%
Authority and reliability
4.9/5
Expert rating
Real-world application tested