Prepositions with nouns

“In height” or “of height”?

In height is the standard expression for measurements. Of height is uncommon and usually appears only in technical or highly formal wording.

Quick answer

Use “in height” for measurements

Use in height after a measurement or comparison, as in two metres in height. The phrase of height is not common in everyday English. English usually prefers a direct adjective such as tall or a phrase like of equal height.

The wall is three metres in height.
The trees vary in height.
The two players are of equal height.

Choose the pattern by meaning

These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.

1
measurement + in height

Giving exact measurements

Use in height after a number or measurement.

The statue stands five metres in height.
2
vary in height

Comparing different heights

Use in height when comparing size differences.

The buildings vary in height across the city.
3
of equal height

Formal comparison

Of height is uncommon alone but appears in fixed comparative phrases.

The doors are of equal height.

See the difference in context

The same subject can take different constructions because each sentence answers a different question.

Construction
Example
Meaning
in height
The tower is 80 metres in height.
standard expression for dimensions
of height
The phrase alone is uncommon in modern English.
usually replaced by tall or high
of equal height
The shelves are of equal height.
formal comparison of dimensions
vary in height
The mountains vary in height.
showing differences in measurement

Common mistakes

Some combinations appear in real text but do not mean what learners often assume.

Using “of height” after numbers

English normally uses in height after measurements.

✕ The wall is two metres of height ✓ The wall is two metres in height

Overusing formal wording

Tall is often more natural in conversation.

✓ The child is very tall

Confusing height with length

Height refers to vertical measurement.

✓ The ladder is three metres in height

Omitting the measurement before “in height”

In height usually follows a specific measure or comparison.

✓ The trees differ in height

Quick practice

Choose the expression that matches the intended meaning.

1. The building is 60 metres ___ height.
2. The twins are ___ equal height.
3. The plants vary ___ height depending on sunlight.

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Frequently asked questions

Is “of height” wrong?

Not always, but it is uncommon except in phrases such as of equal height.

What is the most natural way to describe height?

In many situations, English prefers adjectives like tall or high.

Can I say “vary of height”?

No. The standard expression is vary in height.

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