Which to use
“computation” is a noun and “computational” is an adjective - they look or sound alike but fill different roles in a sentence.
- #18,275
- “computation” frequency rank
- #12,566
- “computational” frequency rank
- 30841
- confusion score
Side-by-Side Comparison
| Feature | computation | computational |
|---|---|---|
| Definition | The act or process of computing; calculation; reckoning. | Of or relating to computation. |
Where the eye mixes computation and computational
Muted = shared; highlighted = the visual trap. They share 11 letters in sequence.
Visual trap between computation and computational
These two trip readers on the page rather than in the ear: computation is /ˌkɒmpjʊˈteɪʃn̩/ while computational is /ˌkɒmpjʊˈteɪʃənəl/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “computation” sits inside “computational”, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 30841, derived from the frequency rank of both members and their visual similarity.
computation is recorded at frequency rank #18,275, classified as anoun, pronounced /ˌkɒmpjʊˈteɪʃn̩/. computational is at rank #12,566, tagged as anadj, pronounced /ˌkɒmpjʊˈteɪʃənəl/.
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 30841, this pair ranks #351,167 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of computation vs computational
Shared letters: acimnoptu. Private to "computation": -. Private to "computational": l.
"computation" · 11 letters · shape CVCCVCVCVVC · "computational" · 13 letters · shape CVCCVCVCVVCVC
Known mistypes of this pair
- computation ← ccomputation · cmoputation · commputation · compputation · comptuation · compuattion · computaiton · computasion
- computational ← ccomputational · cmoputational · commputational · compputational · comptuational · compuattional · computaitonal · computatinoal
Frequently Asked Questions
Is swapping "computation" for "computational" ever safe?
In ordinary English text, does "computation" or "computational" show up more?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "computation" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "computational" - compare definitions side by side with the headword page. Word entry
- This pair ranks #351,167 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "computation" and "computational" also get mixed up with nearby pairs, the highest-scored neighbour is "computational vs computationally". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #351,167 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.