it'svsitsWhat's the difference?

Quick tell: it's is a contraction, its is a determiner, so they fill different roles in a sentence.

Which to use

“it's” is a contraction and “its” is a determiner - they look or sound alike but fill different roles in a sentence.

#55
“it's” frequency rank
#75
“its” frequency rank
130
confusion score

Side-by-Side Comparison

Feature it's its
Definition Contraction of it + is. Belonging to it.

Same sound, different letters: it's vs its

Muted letters are shared; highlighted letters are the only spelling cue when pronunciation matches. Shared run: 3 letters.

4 ch
it's
3 ch
its

Spelling & Dictionary Insight

Say them out loud and nothing separates them: it's and its carry the same recorded pronunciation, /ɪts/. Grammar is what tells them apart: one is acontraction, the other adeterminer, so most sentences will only accept one of them. They differ by 1 letter(s) in length. Our composite confusion score for this pair is 130, derived from the frequency rank of both members and their visual similarity.

it's is recorded at frequency rank #55, classified as acontraction, pronounced /ɪts/. its is at rank #75, tagged as adet, pronounced /ɪts/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 130, this pair ranks #529,835 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of it's vs its

Shared letters: ist. Private to "it's": -. Private to "its": -.

"it's" · 3 letters · shape VCC  ·  "its" · 3 letters · shape VCC

Frequently Asked Questions

Can "it's" and "its" be used interchangeably?
No - they are not even the same part of speech. "it's" is a contraction and "its" a determiner, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "it's" or "its"?
"it's" is the more common of the two: it sits at frequency rank #55 in our English list, against #75 for "its". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list