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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
cool to know that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "cool to know that" is correct and usable in written English.
It can be used to express a positive reaction to new information or a realization that is interesting or enjoyable. Example: "I just found out that our favorite band is coming to town next month. That's cool to know that!"
✓ Grammatically correct
News & Media
Academia
Alternative expressions(20)
it's good to know that
that's interesting
i'm glad to hear that
that's good news
great to learn that
nice to hear that
helpful to know that
fantastic to know that
fabulous to know that
heavy to know that
lovely to know that
major to know that
large to know that
sweet to know that
awesome to know that
great to acknowledge that
neat to know that
marvellous to know that
useful to know that
good to know that
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
13 human-written examples
In certain respects, it's kinda cool to know that can still happen.
News & Media
When I was ten, I would sit around with my friends watching it snow, and someone would say, "I wonder what the deepest snowfall ever was," or something like that, and someone else would say, "Yeah, it would be cool to know that".
News & Media
It's cool to know that what you do makes people happy.
News & Media
"You always hear about the musical heritage of the East Village," he said, "so it's kind of cool to know that the heritage is really here".
News & Media
Wouldn't it be cool to know that your old Sony Trinitron could also tune into the sound of black holes colliding.
News & Media
"It makes it kind of cool to know that you're getting booed in Yankee Stadium and getting talked about in Yankee Stadium, because a lot of people don't even get a chance to do that," he said.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
47 human-written examples
"It's nice knowing a veteran's there, but it's cooler to know that he's successful.
News & Media
It's comforting to know that Clark, cool as she is, can be caught in the headlights of trashy reality TV just like the rest of us.
News & Media
"It was cool to know we almost beat the team that won it all," Richards said.
News & Media
But then we knew we were also accepted within the Christian metal scene as well, that's cool to know, although I think it still less than 50% of our general fan base".
Wiki
That would be cool to know.
Academia
Expert writing Tips
Best practice
Use "cool to know that" when you want to express a mild sense of pleasure or satisfaction upon learning something new, especially when the information is somewhat surprising or unexpected.
Common error
Avoid using "cool to know that" repeatedly in a short span. Overuse can make your writing sound monotonous. Instead, vary your expressions with alternatives like "interesting to learn" or "good to know".
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "cool to know that" functions primarily as an interjection or a sentence fragment expressing a positive reaction to newly acquired information. As Ludwig AI explains, the phrase is perfectly acceptable in written English, mainly to show mild satisfaction or interest upon learning something. The examples from Ludwig show its flexibility in conversation and writing.
Frequent in
News & Media
50%
Academia
20%
Wiki
10%
Less common in
Science
10%
Formal & Business
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "cool to know that" is an informal phrase used to express a pleasant or interested reaction to new information. As Ludwig AI confirms, it's grammatically correct and acceptable, though more suited for casual contexts. While "cool to know that" appears most often in News & Media and academic writings, varying your language with alternatives like "it's good to know that" can enhance your writing style. Be mindful of overuse to maintain clarity and engagement in your communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
it's good to know that
Emphasizes the positive aspect of gaining the knowledge.
it's nice to know that
Indicates a pleasant feeling associated with the information.
it's interesting to learn that
Highlights the intrigue or curiosity sparked by the information.
i'm glad to hear that
Expresses a feeling of happiness or relief upon receiving the information.
that's good news
Focuses on the positive nature of the information itself.
that's a relief to hear
Highlights the sense of reassurance or reduced anxiety.
i find that quite interesting
Implies personal engagement and curiosity.
that's quite fascinating
Conveys a sense of wonder or deep interest.
it's enlightening to know that
Highlights the educational or revealing aspect of the information.
that's an interesting tidbit
Suggests the information is a small but noteworthy piece of knowledge.
FAQs
What does "cool to know that" mean?
The phrase "cool to know that" expresses a positive reaction to new information. It suggests the information is interesting, pleasant, or somewhat surprising in a good way.
What can I say instead of "cool to know that"?
You can use alternatives like "it's good to know that", "it's nice to know that", or "that's interesting" depending on the context.
Is "cool to know that" formal or informal?
"Cool to know that" is generally considered informal. Use more formal alternatives like "it is beneficial to know that" or "it is insightful to learn that" in professional or academic settings.
How can I use "cool to know that" in a sentence?
You can use "cool to know that" to respond to new information, like: "I heard they're offering free workshops. Cool to know that!". It can also introduce a statement: "Cool to know that there's a community supporting artists."
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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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested