at which rate

USAGE SUMMARY

The phrase "at which rate" is correct and usable in written English.
It can be used when discussing the speed or frequency of an event or action, often in a formal context. Example: "The project is progressing at which rate we can expect completion by the end of the month."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

6 human-written examples

The banks are asked at which rate each could borrow a "reasonable amount".

The New York Times

It counted down at about 20 hectares a minute, at which rate no rainforest would be left by the end of this century.Despite a faddish Western concern for tropical forests, more were cleared in the ensuing decade than ever before.

The Economist

Perennial shortfalls of $1 billion or more in the Navy's shipbuilding account have reduced annual ship purchases to about six a year from the Navy's goal of nine, at which rate the fleet will shrink in the coming decades to about 200 ships from its current 316.

The New York Times

According to the medical correspondent to the Times of December 18 and 19, 1918, there is good reason to estimate the world's death-roll from influenza and pneumonia at not fewer than 6,000,000 lives, at which rate he points out that this epidemic has been five times as deadly as the war during the same period of three months.

Nature

The average taxable money market mutual fund yields all of 1.3%, at which rate your savings would double in 54 years.

Forbes

These findings combined with serological evidence of exposure of cattle grazing in QENP to the SAT serotypes [ 35] emphasizes the need to study FMDV isolates from these two populations to establish whether FMDV is transferred between them and at which rate.

BMC Veterinary Research

Human-verified similar examples from authoritative sources

Similar Expressions

54 human-written examples

"We're near a point at which rates on cards will not drop, no matter how low interest rates go," Greg McBride, an analyst with Bankrate.com, said.

The New York Times

Nothing had really changed since the Bank's last inflation report in February, although the passage of time means that the economy has edged closer to the point at which rates will be lifted from the emergency level of 0.5%.

The Guardian - Business

Cargo War Risk Reinsurance Exchange holds three regular meetings a week, at which rates are revised in the light of news dispatches & confidential reports from all over the world - emergency meetings are also held.

The New Yorker

Against the dollar, sterling has moved from a day's low of $1.5449 to $1.5604 after Carney told a Treasury select committee that the point at which rates would begin to rise was moving closer.

The Guardian - Business

The next rising cycle will be defined as the point at which rates exceed 5.5%.

Forbes

Expert writing Tips

Best practice

Use "at which rate" in formal writing when precision in expressing speed or frequency is required. It is particularly suitable for technical or scientific contexts.

Common error

Avoid using "at which rate" in casual conversation or informal writing. Simpler alternatives like "how fast" or "how quickly" are often more appropriate.

Linguistic Context

The phrase "at which rate" functions as a prepositional phrase, often introducing a relative clause that modifies a noun or describes the manner or speed of an action or event. Ludwig examples illustrate its use in specifying the pace of borrowing, deforestation, and other processes.

Expression frequency: Rare

Frequent in

News & Media

40%

Science

40%

Formal & Business

20%

Less common in

Encyclopedias

0%

Academia

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, the phrase "at which rate" is a grammatically correct prepositional phrase used to specify the speed or frequency of an event. While Ludwig AI confirms its correctness, its usage is relatively rare, appearing primarily in news, scientific, and formal business contexts. For less formal situations, alternatives like "how quickly" or "at what speed" may be more suitable. The phrase is most effective when precision is required in describing the tempo or pace of a particular process.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

at which velocity

Replaces "rate" with "velocity", emphasizing speed and direction.

at what speed

Replaces "rate" with "speed", focusing on velocity. It is slightly less formal.

at which tempo

Replaces "pace" with "tempo", emphasizing rhythm.

at what pace

Substitutes "rate" with "pace", indicating rhythm or tempo, slightly less technical.

at what frequency

Replaces "rate" with "frequency", emphasizing how often something occurs.

at what tempo

Emphasizes the rhythm or cadence of an action, specific to periodic actions.

how quickly

Simplifies the phrasing to a more direct question about speed, less formal.

how rapidly

Replaces the entire phrase with a simpler, more direct adverbial phrase.

to what extent

Changes the focus to degree or magnitude rather than speed, broadening the context.

at what proportion

Shifts from speed to the ratio or fraction, changes focus to composition.

FAQs

How can I use "at which rate" in a sentence?

You can use "at which rate" to describe the speed or frequency of an event. For instance, "The deforestation is happening "at which rate" no rainforest will be left by the end of the century".

What are some alternatives to "at which rate"?

Alternatives include "at what speed", "at what pace", or "how quickly", depending on the specific nuance you want to convey.

Is "at which rate" formal or informal?

"At which rate" is generally considered a more formal expression. In informal contexts, simpler phrases like "how fast" or "how quickly" might be more suitable.

What's the difference between "at which rate" and "at what rate"?

"At which rate" and "at what rate" are largely interchangeable, but "at which rate" tends to be perceived as slightly more formal or technical. The choice often depends on the overall tone and style of the writing.