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
constant to
Grammar usage guide and real-world examplesUSAGE SUMMARY
"constant to" is correct and can be used in written English.
You can use it when referring to someone or something that remains the same in spite of changes. For example, "Despite the company's growth, he remained constant to his core values."
✓ 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
59 human-written examples
The rate constant is the ratio of the transfer constant to the EES (Kep = Ktrans/Ve).
Science
But there's one constant to my weeks.
News & Media
Her mental sharpness and vibrancy were a constant to the end.
News & Media
So Einstein added a fudge factor that he called the cosmological constant to his equations.
News & Media
The results have sent Einstein's old cosmological constant to the forefront of cosmology.
News & Media
Mechanisms exist that would allow the Constant to decrease incrementally through time.
News & Media
If there is any constant to his work, change would be it.
News & Media
These percentages are relatively constant to about 80.5 kilometres in altitude.
Encyclopedias
"One has to be constant to the end," Fidel wrote approvingly.
News & Media
Constant to all such cases are structures where men have power and women are not seen as credible.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
1 human-written examples
The constant to-ing and fro-ing of their (often mistaken) understanding of one another is held steadily in focus.
News & Media
Expert writing Tips
Best practice
When using "constant to", ensure that the relationship you are describing truly represents a stable and unchanging connection between two elements. This phrase is most effective when highlighting invariant aspects amidst variability.
Common error
Avoid using "constant to" when describing relationships that fluctuate or exhibit minor variations. The phrase implies a higher degree of immutability; using it inaccurately can mislead your audience.
Source & Trust
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "constant to" functions as a prepositional phrase that modifies a noun or verb, indicating a state of invariance or stability in relation to something else. Ludwig's examples demonstrate this usage across varied contexts, highlighting its role in specifying unchanging relationships.
Frequent in
Science
52%
News & Media
43%
Encyclopedias
2%
Less common in
Wiki
1%
Formal & Business
1%
Social Media
0%
Ludwig's WRAP-UP
In summary, the prepositional phrase "constant to" is grammatically correct and commonly employed to denote a state of invariance or stability in relation to another factor. Ludwig's analysis shows it's primarily used in scientific and news media contexts. While the phrase is appropriate for emphasizing unchanging relationships, it’s crucial to ensure the described relationship truly reflects immutability. Alternatives like "consistent with" may be more suitable when describing relationships with some degree of variability. As Ludwig AI confirms, this phrase is acceptable for use in written English, provided its specific nuance is accurately applied.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
consistent with
Replaces "constant to" by emphasizing agreement or alignment rather than direct invariance.
remaining unchanged relative to
More explicit and formal than "constant to", specifying a point of reference.
invariable with respect to
A formal option that stresses the absence of change concerning a specific factor.
steady in relation to
Highlights stability and connection, somewhat altering the emphasis from strict constancy.
uniform in comparison to
Suggests a consistent appearance or value when measured against something else.
proportional to
Indicates a direct relationship where changes in one element directly affect the other in a consistent manner.
commensurate to
Implies a comparable or corresponding amount, size, or degree.
corresponding to
Highlights a direct relationship or similarity between two things.
analogous to
Suggests a similarity or comparability, usually highlighting a point-by-point resemblance.
equivalent to
Indicates an equal value or measure.
FAQs
How can I use "constant to" in a sentence?
Use "constant to" to describe something that remains unchanged in relation to something else. For example, "The temperature was kept constant to ensure accurate results."
What are some alternatives to "constant to"?
You can use alternatives like "consistent with", "remaining unchanged relative to", or "proportional to" depending on the context.
Is it correct to say "the rate is constant to the temperature"?
Yes, it is grammatically correct, but ensure that the rate truly remains unchanged regardless of temperature fluctuations. Otherwise, consider using a phrase that reflects a more variable relationship.
What's the difference between "constant to" and "consistent with"?
"Constant to" suggests an unchanging relationship, while "consistent with" implies agreement or alignment. Something that is "constant to" another factor never changes in relation to it, whereas something "consistent with" another factor aligns or agrees with it but might not be identical or unchanging.
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
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested