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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
estimated by
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "estimated by" is correct and usable in written English.
It can be used when referring to a value or figure that has been approximated or calculated by someone or something. Example: "The total cost of the project was estimated by the financial analyst to be around $50,000."
✓ Grammatically correct
Science
News & Media
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
The statistics, as estimated by comScore, speak for themselves.
News & Media
Schwarzman's fortune is estimated by Forbes magazine at $4.7bn.
News & Media
Billings were estimated by Adweek at $20 million.
News & Media
Was it the 50percentt estimated by Ken Caminiti?
News & Media
PEV was estimated by ANOVA.
Science
Risk factors were estimated by logistic regression.
Science
This disturbance is estimated by numerical method.
Number of ovulations was estimated by ultrasound.
Science
The model is estimated by maximum likelihood.
Science
Then can be estimated by (11).
These parameters were estimated by 95%% confidence.
Expert writing Tips
Best practice
When using "estimated by", clearly state who or what performed the estimation to avoid ambiguity. For example, "The cost was estimated by the project manager."
Common error
Avoid overuse of the passive voice with "estimated by", which can make your writing sound indirect. Consider using the active voice to make your sentences more concise and impactful. For example, instead of "The budget was estimated by the team", try "The team estimated the budget."
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "estimated by" functions as a passive construction, indicating that an action (estimation) was performed on a subject. It is used to attribute the estimation to a specific source or method, as seen in examples from Ludwig.
Frequent in
Science
58%
News & Media
31%
Formal & Business
5%
Less common in
Wiki
3%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
The phrase "estimated by" is a common and grammatically sound construction used to attribute an estimation to a specific source or method. As confirmed by Ludwig, it effectively conveys that a value has been approximated rather than precisely measured. Its usage is prevalent in scientific and news contexts, indicating a neutral to formal register. While suitable for various writing styles, it's important to consider the active voice for more direct and impactful communication. Common alternatives include "calculated by", "approximated by", and "assessed by", depending on the desired level of precision. The widespread use of "estimated by" underscores its reliability and acceptability in formal and informal settings alike.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
approximated by
Suggests a less exact, more rounded figure.
computed by
Similar to calculated by but can suggest more complex procedures.
calculated by
Implies a more precise, mathematical determination.
projected by
Indicates a forecast or prediction.
forecasted by
Specifically relates to predictions about the future.
assessed by
Focuses on the evaluation aspect rather than a precise calculation.
derived by
Highlights the origin or source of the estimation.
evaluated by
Emphasizes the process of judging or valuing.
determined by
Highlights the act of finding something out definitively.
inferred by
Focuses on drawing a conclusion based on evidence.
FAQs
How can I use "estimated by" in a sentence?
Use "estimated by" to indicate that a value or quantity has been approximated or calculated by a particular entity or method. For instance, "The population size was estimated by statistical modeling."
What's a good alternative to "estimated by"?
Alternatives include "calculated by", "approximated by", or "assessed by" depending on the specific context and the level of precision you want to convey.
Is it better to use active or passive voice with "estimated by"?
While "estimated by" is grammatically correct, using the active voice can often make your writing more direct. For example, instead of "The damage was estimated by the insurance company", you could say "The insurance company estimated the damage".
What does "estimated by" imply about the accuracy of a value?
"Estimated by" suggests that the value is an approximation, not an exact measurement. The accuracy can vary depending on the method and data used for the estimation.
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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
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested