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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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length of about

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "length of about" is correct and usable in written English.
It can be used when providing an approximate measurement or estimation of length. Example: "The river has a length of about 300 miles."

✓ Grammatically correct

Science

Encyclopedias

News & Media

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Castoroides attained a length of about 2.5 metres (7.5 feet).

Encyclopedias

Britannica

Cacops reached a length of about 40 cm (16 inches).

Mylodon attained a length of about 3 metres (10 feet).

Butterflyfishes are small, seldom exceeding a length of about 20 cm (8 inches).

Encyclopedias

Britannica

The gavial normally attains a length of about 4 5 metres (12 15 feet).

Encyclopedias

Britannica

This rarely sighted species attains a length of about 18 cm (7 inches).

Encyclopedias

Britannica

The vine grows to a length of about 18 m (about 60 feet).

Encyclopedias

Britannica

The fish, elongated and slender, grows to a length of about 6.5 centimetres (2.5 inches).

Encyclopedias

Britannica

The largest species may grow to a length of about 2.3 metres (7.5 feet).

Encyclopedias

Britannica

The Khābūr ("Source of Fertility") has a total length of about 200 miles (320 km).

Encyclopedias

Britannica

The NWs have the diameter of about 50 nm and the length of about 8 µm.

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Expert writing Tips

Best practice

Use "length of about" when providing an estimate that doesn't require exact precision. For scientific contexts or detailed reports, consider providing a range instead for clarity.

Common error

Avoid using "length of about" when precision is necessary. In technical documentation or scientific papers, prefer specific measurements with units, or provide a margin of error.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

76%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "length of about" functions as a prepositional phrase modifying a noun. It indicates an approximate measurement. Ludwig AI indicates this phrase is perfectly acceptable in written English.

Expression frequency: Very common

Frequent in

Science

31%

Encyclopedias

28%

News & Media

10%

Less common in

Wiki

10%

Formal & Business

0%

Social Media

0%

Ludwig's WRAP-UP

In summary, the phrase "length of about" is a common and grammatically sound way to indicate an approximate measurement, as also confirmed by Ludwig AI. It is versatile, appearing across various contexts such as scientific reports, encyclopedia articles, and news stories. While "length of about" is widely accepted, it's essential to consider the level of precision required by your audience and context. For formal or scientific writing, consider using more precise measurements or a range. For alternatives, you can consider phrases like "approximately this length" or "roughly this length". Ultimately, "length of about" is a valuable tool for conveying approximate dimensions.

FAQs

How can I use "length of about" in a sentence?

Use "length of about" to indicate an approximate measurement. For example, "The river has a "length of about" 300 miles."

What's a more formal alternative to "length of about"?

For a more formal tone, you can use "approximately this length" or "a length of approximately". Both convey a similar meaning with increased formality.

Is it appropriate to use "length of about" in scientific writing?

While usable, consider using more precise language in scientific writing. Providing a specific measurement with a margin of error is often preferred such as "The sample measured 10mm ± 0.5mm".

What is the difference between "approximately this length" and "length of about"?

"Approximately this length" is slightly more formal and emphasizes the approximation more directly, while ""length of about"" is a more general way of indicating an estimated measurement.

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Source & Trust

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Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: