Equal To: Standard Pattern
Equal To: Standard Pattern records a directly documented English construction and keeps guidance bounded to the evidenced pattern rather than turning one attested complement into a universal prohibition.
Use “equal to” when something is the same in amount, number, size, or comparable value, and in the documented formal ability construction “equal to the task.”
Key details
Choose the right form
| Meaning / situation | Form / construction | Decision |
|---|---|---|
| two things have the same amount, number, size, value, or comparable status | equal to + comparison target | Use “to” for the comparison. |
| someone is capable of meeting a challenge | equal to the task / challenge | Use the documented formal ability construction. |
| the dimension itself is named | equal in + dimension | Keep this distinct documented pattern separate from “equal to.” |
Quick tests
Meaning / construction test
Are you comparing one thing directly with another target?
If yes: Use “equal to.”
If no: If you are naming the dimension of equality, “equal in” may be the relevant construction.
Caveat: “Equal to” and “equal in” serve different complement roles; this page should not imply that one mechanically replaces the other.
Examples
Four quarters are equal to one whole.
The phrase compares equivalent quantities.
She proved equal to the task.
The formal construction means capable of meeting the task.
The two rooms are equal in size.
The dimension is named with “in,” illustrating the boundary of this page.
Further guidance
Construction
Use “equal to” when something is the same in amount, number, size, or comparable value, and in the documented formal ability construction “equal to the task.”
Style Boundary
Cambridge also documents “equal in” before a dimension such as volume or size; this page does not collapse those distinct complement patterns.
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
- Equal (opens in a new tab)Cambridge University Press · Direct learner-dictionary evidence for equal to constructions and documented equal in alternatives.