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
at less than
Grammar usage guide and real-world examplesUSAGE SUMMARY
"at less than" is a grammatically correct phrase and can be used in written English.
It is typically used to compare two quantities, with the first being smaller than the second. Example: The cost of the new phone is at less than $500. (meaning the cost is lower than $500) Other examples: - The temperature stayed at less than 10 degrees Celsius all day. (meaning the temperature was below 10 degrees Celsius) - The company's profits were at less than $1 million this quarter. (meaning the profits were less than $1 million).
✓ Grammatically correct
News & Media
Science
Alternative expressions(10)
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
acceleration times at less than nine seconds.
News & Media
Sauerbrey put it at less than fifty.
News & Media
Spending was estimated at less than $5 million.
News & Media
Prices started at less than $100,000.
News & Media
had been measured at less than 70.
News & Media
Billings were estimated at less than $10 million.
News & Media
Winstar shares closed yesterday at less than a penny.
News & Media
"I'm back at less than zero," she remembered thinking.
News & Media
"He was born prematurely, at less than eight months.
News & Media
Fish will firm up at less than 50C.
News & Media
Most now trade at less than their annual sales.
News & Media
Expert writing Tips
Best practice
When using "at less than" to describe numerical values, ensure the units of measurement are consistent and clearly stated for clarity. For example, instead of "prices start at less than 10", specify "prices start at less than $10".
Common error
Avoid using "at less than" when a simple comparison is sufficient. For example, instead of saying "this car's fuel economy is at less than the competitor's", use "this car's fuel economy is less than the competitor's" for conciseness and impact.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "at less than" primarily functions as a prepositional phrase modifying a noun or noun phrase. It indicates that a quantity or value is below a certain threshold. Ludwig AI confirms its grammatical correctness and common usage.
Frequent in
News & Media
66%
Science
22%
Wiki
3%
Less common in
Formal & Business
3%
Reference
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, "at less than" serves as a prepositional phrase that is both grammatically sound and widely applicable for expressing values below a defined threshold. Ludwig AI verifies its correctness, and examples showcase its prevalence in various fields such as news, science, and technology. While alternatives like "below" and "under" exist, "at less than" provides a specific nuance often used when estimating or approximating. Be mindful of the comparative contexts to avoid redundancy, and ensure clarity in your units of measurement. With a high source quality and consistent usage, "at less than" remains a valuable tool for clear communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
below
Single-word substitute focusing on the position below a certain level or number.
under
Similar to 'below', but can also refer to a range or limit.
not exceeding
More formal and precise, explicitly stating the limit that is not to be surpassed.
less than or equal to
Expresses inclusivity of the limit, allowing it to be the maximum value.
lower than
Highlights the comparative aspect, emphasizing that something is smaller in value or quantity.
beneath
Implies a figurative or literal position that is under something else.
short of
Indicates that a target or desired amount was not reached.
inferior to
Used when comparing quality or status, indicating a lower rank or grade.
a fraction of
Expresses that some small amount of the total exists.
in deficit of
Formal language used to indicate that a certain amount or number is insufficient.
FAQs
How can I use "at less than" in a sentence?
You can use "at less than" to indicate that a value or quantity is smaller than a specified amount. For example, "The cost of the repair was estimated at less than $100."
What are some alternatives to using "at less than"?
Depending on the context, you could use alternatives like "below", "under", or "not exceeding" to convey a similar meaning.
Is it correct to say "at less than or equal to"?
Yes, saying "at less than or equal to" is grammatically correct and specifies that a value can be smaller than or the same as a given amount. Alpha was set "at less than or equal to" 0.05.
What's the difference between "at less than" and "less than"?
"Less than" is more concise and commonly used for direct comparisons. "At less than" is often used when stating an estimated or approximate value, such as "spending was estimated "at less than" $5 million".
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested