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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
the rate of which
Grammar usage guide and real-world examplesUSAGE SUMMARY
'the rate of which' is correct and can be used in written English.
For example, "I was impressed by the speed of his progress, the rate of which was remarkable."
✓ Grammatically correct
Science
News & Media
Encyclopedias
Alternative expressions(20)
the airline of which
the argument of which
the measurement of which
the dead of which
to what degree
the level of which
the proportion by which
the system of which
the proportion of which
the level to which
the scope of which
the magnitude of which
the extent of which
the importance of which
to what level
the degree to which
the velocity at which
the enormity of which
the frequency with which
the intensity with which
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
44 human-written examples
The rate of which misinformation is spreading on the web is faster than the rate of manual fact-checking conducted by organizations like Politifact.com and Factchecking.org.org
Academia
Improved conditions have prompted a small return migration from the United States back to Puerto Rico, the rate of which has at times exceeded that of emigration.
Encyclopedias
Thousands of patients have to be sent for treatment outside their local area each year, a practice linked to suicide, the rate of which is rising, particularly among men.
News & Media
It can also cause the machine to slide down the legs, the dreaded "laptop creep," the rate of which is directly proportional to the amount of polyester in your suit.
News & Media
To do that, he will tap out a rhythm on a keyboard, the rate of which will tell the computer whether to speed up or slow down its music.
News & Media
A major feature of ecosystems as a whole is their biotic turnover of matter the rate of which is restricted by the lack of limiting substances.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
16 human-written examples
Chief among them are deaths from gun violence, car accidents, and drug overdoses, the rates of which are significantly higher in the U.S. than elsewhere in the developed world.
News & Media
Opponents say the long-term costs to the district in paying off the interest — the rates of which won't be fully known until the bonds are issued — are too high and create too large a financial risk.
News & Media
For the rates of which values are unknown, we have performed simulations for a number of parameter combinations.
Further work should be undertaken to reduce interventions – primarily instrumental deliveries, the rates of which differed between the two hospitals.
Science
Their target is the capital gains tax, the tax rate of which already is significantly lower than the tax rate on ordinary income such as wages and salaries.
News & Media
Expert writing Tips
Best practice
When using "the rate of which", ensure it clearly refers to a previously mentioned noun. This maintains clarity and avoids ambiguity in your writing.
Common error
Avoid using "the rate of which" without a clear antecedent. Ensure the "which" has a specific noun to refer back to; otherwise, rephrase to avoid confusion.
Source & Trust
84%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "the rate of which" functions as a relative clause, modifying a noun by providing additional information about its speed or frequency. Ludwig AI confirms its correctness and shows its usage in diverse contexts. Examples show it introduces a dependent clause, elaborating on a previously mentioned rate or pace.
Frequent in
Science
44%
News & Media
28%
Encyclopedias
16%
Less common in
Academia
4%
Wiki
4%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, "the rate of which" is a grammatically correct phrase used to specify the speed or frequency of something, often found in formal contexts such as scientific articles, news reports, and encyclopedias. Ludwig AI confirms its validity and provides examples of its usage. While effective, it is often more concise and common to use "the rate at which". Key usage includes ensuring a clear referent and understanding that, although correct, there are more popular alternatives available. Its function is primarily to provide quantitative detail about a process or action. Remember to consider context and audience when choosing this phrase over more common alternatives.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
the speed at which
Focuses specifically on the speed or velocity of something.
the frequency with which
Emphasizes how often something occurs.
the degree to which
Highlights the extent or intensity of something.
the extent to which
Similar to 'degree', but can also refer to spatial extent.
the proportion by which
Indicates the comparative amount or ratio.
the measure at which
Focuses on the method or standard used for measuring.
the tempo at which
Highlights the timing or pace of an event or process.
the velocity at which
Similar to speed, often used in scientific contexts.
the level to which
Indicates the height or stage that something reaches.
the intensity with which
Focuses on the strength or forcefulness of an action or feeling.
FAQs
How can I use "the rate of which" in a sentence?
Use "the rate of which" to specify how quickly or frequently something is happening in relation to a previously mentioned element. For example, "The disease spread rapidly, the rate of which concerned health officials."
What are some alternatives to "the rate of which"?
You can use alternatives like "the speed at which", "the frequency with which", or "the degree to which", depending on the specific meaning you want to convey.
Is it more common to say "the rate at which" instead of "the rate of which"?
"The rate at which" is often preferred over "the rate of which" due to its more direct and simpler construction. Both are grammatically correct, but the former is generally more common in modern English.
Can "the rate of which" be used in formal writing?
Yes, "the rate of which" is suitable for formal writing, especially in scientific or technical contexts where precision is important. However, consider whether a simpler alternative like "the speed at which" might improve clarity.
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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
84%
Authority and reliability
4.1/5
Expert rating
Real-world application tested