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
two times of
Grammar usage guide and real-world examplesUSAGE SUMMARY
"two times of" is not a correct or usable phrase in written English.
Instead, you can use "twice as much" or "twice the amount" when referring to a quantity of something. Example: We need to buy twice as much flour for this batch of cookies.
⚠ May contain grammatical issues
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
We spend more than two times of our taxpayer dollars on inmates than on students".
News & Media
THERE are two times of year when crowds swell at the sombre and imposing memorial to victims of the violence carried out here in 1937 by Japanese troops.
News & Media
Only two times of day descend on a hospital: the starkest noon or a disturbed, disassembled night, all of it punctuated by medical and rehabilitative dramas.
News & Media
Since then two times of infilling adjustment had been conducted.
By increasing two times of drilling cutting density/operational density, cutting precipitation ratio increased 200%.
The paper assumes that the transmission range is larger than two times of the sensing range.
Data are means of duplicate measurements by two times of 2 independent experiments.
Science
A contour interval corresponds to the confidence level of two times of the standard error.
Science
The execution efficiency of the proposed CAQG-ACL is about two times of the QG-SP.
In fatigue testing, various percentages of failure strain ɛf, two times of the strain amplitude, are adopted.
The maximal transmittivity efficiency for the polarized light is two times of that of the unpolarized light.
Expert writing Tips
Best practice
Avoid using the phrase "two times of" in formal writing. Opt for grammatically correct alternatives such as "twice as much as" or "double the amount of".
Common error
A common mistake is including "of" after phrases indicating multiplication. Instead of saying "two times of something", use "twice the amount" or "two times something" without the "of".
Source & Trust
81%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "two times of" functions as a prepositional phrase aiming to express multiplication or a doubled quantity. However, as Ludwig AI indicates, this phrase is grammatically incorrect in standard English.
Frequent in
Science
78%
News & Media
17%
Formal & Business
5%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, while the phrase "two times of" appears frequently across various sources, particularly in scientific and news contexts, it is considered grammatically incorrect. As Ludwig AI points out, more appropriate alternatives include "twice as much as", "double the amount of", or simply "two times". Correct usage enhances clarity and credibility, especially in formal writing. Although this is a common phrase, it's important to opt for correct alternatives to maintain grammatical accuracy.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
twice as much as
Emphasizes a quantity that is doubled compared to another.
double the amount of
Indicates an amount that is exactly twice the size of something else.
twice the size of
Focuses on the size or magnitude being doubled.
twice the quantity of
Highlights specifically the quantity being doubled.
doubled in
Highlights the action of something becoming twice its original value.
two times greater than
Emphasizes the comparison of two quantities where one is double the other.
twofold increase in
A more formal way to describe a doubling or multiplication by two.
multiplied by two
Explicitly states the mathematical operation of multiplying by two.
increased twofold
Describes the increase in number or quantity.
by a factor of two
Indicates that something is increased by a multiple of two.
FAQs
How can I correctly express "two times of" in a sentence?
Instead of "two times of", use phrases like "twice the amount", "twice as much as", or simply "two times" depending on the context.
Is there a difference between "two times of" and "twice the amount of"?
Yes, "two times of" is grammatically incorrect. The correct phrase is "twice the amount of", which means double the quantity or size.
What are some alternatives to "two times of" in scientific writing?
In scientific writing, you can use more formal alternatives such as "twofold increase", "increased by a factor of two", or "doubled in".
When is it acceptable to use "two times of" in writing?
It is generally not acceptable to use "two times of" in formal or academic writing. It is considered grammatically incorrect, and should be replaced with more appropriate alternatives, although the phrase is commonly used, as exemplified by Ludwig.
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
81%
Authority and reliability
2.8/5
Expert rating
Real-world application tested