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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
a guesstimate
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a guesstimate" is correct and usable in written English.
It can be used when you want to express an estimate that is based on guesswork rather than precise calculations. Example: "Based on the available data, my guesstimate for the project's completion time is about three weeks."
✓ Grammatically correct
News & Media
Science
Formal & Business
Wiki
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
46 human-written examples
Just a guesstimate is fine.
News & Media
Though Ms. Whitney said her prediction was based on "a guesstimate," she hasn't backed down.
News & Media
That's a guesstimate number the Nats seem to like or, perhaps, where they get stuck.
News & Media
The poundcake was a trifle dry; as with the Jenn-Air, the timing was a guesstimate.
News & Media
It's a guesstimate, yet it is only a partial view of the total mismatch between income and expenditure.
News & Media
That is based on a guesstimate of the drop in output that might result from even a small deforestation-related decline in precipitation.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
14 human-written examples
Luckily for the carbon credentials of the World Cup, however, each of the 64 matches will be viewed on the television by a guesstimated 93 million people worldwide.
News & Media
The SNB owns about $80 billion in U.S. stocks today (June, 2017) and a guesstimated $20 billion or so in European stocks (this guess comes from my friend Grant Williams, so I will go with it).
News & Media
Not incidentally, the bet is that the New York exchange gets the listing because a huge financial platform (NYSE is the world's largest) is needed to handle the world's biggest oil company, and what will be the biggest IPO in history with a guesstimated $1 to $2 trillion market value.
News & Media
A: Some guesstimates predict the figure will be, give or take a hundred more, maybe 2,110 or 2,131, depending on what the committee decides.
News & Media
2,000 is a private guesstimate leaked by a newspaper then, not the reliable statistic it's been presented as by the media.
News & Media
Expert writing Tips
Best practice
Use "a guesstimate" when you need to provide a quick estimate that might not be entirely accurate due to lack of precise data, but still serves as a useful approximation.
Common error
Avoid presenting "a guesstimate" as a definitive figure. Always acknowledge its approximate nature to maintain credibility.
Source & Trust
85%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of the phrase "a guesstimate" is that of a noun phrase functioning as a subject complement or object. Ludwig provides numerous examples of its use in sentences where it identifies or describes an estimated value or quantity.
Frequent in
News & Media
72%
Science
14%
Formal & Business
6%
Less common in
Wiki
6%
Academia
1%
Social Media
1%
Ludwig's WRAP-UP
The phrase "a guesstimate" is a common and grammatically sound term used to describe an estimate that is based on guesswork rather than precise calculations, as validated by Ludwig. It serves to provide a rough idea when precise data is lacking. While acceptable in most contexts, it's best suited for neutral or informal settings. Alternatives such as ""an educated guess"" or ""a rough estimate"" might be preferred in more formal situations. Ensure that the approximate nature of a "guesstimate" is always acknowledged to maintain credibility.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
an educated guess
Implies a guess based on some knowledge or experience, making it slightly more informed than a pure "guesstimate".
a rough estimate
Focuses on the lack of precision, emphasizing that the value is approximate.
a ballpark figure
Indicates an approximate number, often used in financial contexts.
a back-of-the-envelope calculation
Suggests a quick, informal calculation done without precise tools.
a tentative estimation
Highlights the provisional nature of the estimate, indicating it may change.
an approximation
Emphasizes the inexactness of the figure, highlighting that it is close but not precise.
a speculative figure
Suggests the number is based on conjecture and may not be reliable.
a working hypothesis
Implies the estimate is being used as a starting point for further investigation.
a preliminary assessment
Highlights that the estimate is an initial judgment, likely to be refined later.
an informed judgment
Suggests the estimate is based on knowledge and insight, though not necessarily precise data.
FAQs
How can I use "a guesstimate" in a sentence?
You can use "a guesstimate" to indicate an approximate calculation or prediction. For example, "Based on current trends, my guesstimate for next quarter's sales is around $1 million."
What's a good alternative to saying "a guesstimate"?
Depending on the context, you could use alternatives like "an educated guess", "a rough estimate", or "a ballpark figure".
Is "guesstimate" a formal term?
"Guesstimate" is generally considered an informal term. In more formal settings, it's better to use alternatives like "estimate" or "approximation".
What makes "a guesstimate" different from a regular estimate?
"A guesstimate" implies a greater degree of uncertainty and less reliance on precise data compared to a regular estimate. It's an estimate based more on intuition and readily available information.
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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
85%
Authority and reliability
4.6/5
Expert rating
Real-world application tested