Which to use
“mg” is an abbrev and “mol” is a noun - they look or sound alike but fill different roles in a sentence.
- #5,858
- “mg” frequency rank
- #40,405
- “mol” frequency rank
- 46263
- confusion score
Side-by-Side Comparison
| Feature | mg | mol |
|---|---|---|
| Definition | Abreviatura y símbolo de la unidad miligramo. | Unidad de cantidad de sustancia empleada en el Sistema Internacional de Unidades, definida como la cantidad de sustancia de un sistema que contiene tantos entes elementales como átomos hay en 0,012 kg del nucleído carbono-12, o como la cantidad de una sustancia cuyo peso en gramos equivale a su número atómico. Si se emplea para expresar la cantidad de una sustancia, debe indicarse a qué tipo de unidades corresponde: átomos, moléculas, etc. El número de unidades contenidas está representado por el número de Avogadro. |
Where the eye mixes mg and mol
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses mg with mol
These two trip readers on the page rather than in the ear: mg is [ˈg] while mol is [ˈmol]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (abbrev vs noun), which is usually the fastest check. Our composite confusion score for this pair is 46263, derived from the frequency rank of both members and their visual similarity.
mg is recorded at frequency rank #5,858, classified as anabbrev, pronounced [ˈg]. mol is at rank #40,405, tagged as anoun, pronounced [ˈmol].
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 46263, this pair ranks #126,747 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of mg vs mol
Shared letters: m. Private to "mg": g. Private to "mol": lo.
"mg" · 2 letters · shape CC · "mol" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "mg" for "mol" ever safe?
In ordinary Spanish text, does "mg" or "mol" show up more?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "mg" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "mol" - compare definitions side by side with the headword page. Word entry
- This pair ranks #126,747 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "mg" and "mol" also get mixed up with nearby pairs, the highest-scored neighbour is "mol vs mur". Nearby pair
Confusion rank #126,747 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.