Mol or mole?
mol is a symbol meaning “molar percent. Percentage as a fraction of moles of a substance”; mole is a noun meaning “A naevus, a pigmented, slightly raised, and sometimes hairy spot on the skin”. Use mol as a symbol and mole as a noun. In written English (wordfreq, 2021 data) mole is about 3.2 times as common as mol.
What is the difference between mol and mole?
| mol | mole | |
|---|---|---|
| Part of speech | noun, symbol | noun, verb |
| Meaning | molar percent. Percentage as a fraction of moles of a substance | A naevus, a pigmented, slightly raised, and sometimes hairy spot on the skin Any of several small, burrowing, insectivorous mammals of the family Talpidae Any of the burrowing rodents also called mole-rats |
| Example | none recorded | none recorded |
| Forms | mols | moles |
| Pronunciation | /məʊl/ /mol/ /moʊl/ | /məʊl/ /mɔʊl/ /mɒʊl/ |
| In writing | 1.4 times per million words | 4.7 times per million words |
Sources: mol and mole in the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Every current meaning of mol and mole
mol
- 1
datedAlternative spelling of mole
- 2
Abbreviation of molecule
- 3
molar percent. Percentage as a fraction of moles of a substance
mole
- 1
A naevus, a pigmented, slightly raised, and sometimes hairy spot on the skin
- 2
Any of several small, burrowing, insectivorous mammals of the family Talpidae
- 3
To create a network of channels in (waterlogged soil) to improve drainage
- 4
AustraliaderogatoryslangA moll, a bitch, a slut
- 5
A massive structure, usually of stone, used as a pier, breakwater or junction between places separated by water
- 6
In the International System of Units, the base unit of amount of substance; the amount of substance of a system which contains exactly 6.02214076×10²³ elementary entities (atoms, ions, molecules…
- 7
A hemorrhagic mass of tissue in the uterus caused by a dead ovum
- 8
Any of several spicy sauces typical of the cuisine of Mexico and neighboring Central America countries, especially one that contains chocolate and is used in cooking main dishes, not desserts
Source: the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); obsolete, archaic, dialect and rare senses left out.
Which is more common, mol or mole?
mol appears 1.4 times per million words; mole 4.7 times per million words.
mol 1.4 times per million wordsmole 4.7 times per million words
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How many people search mol vs mole?
“mol vs mole” is searched about 320 times a month on Google and 10 on Bing in the United States. Google counts close variants of a query together (“mole vs mol”, “mol or mole”).
Sources: Google Ads keyword data through DataForSEO and Microsoft Advertising keyword data through DataForSEO, the average month from September 2025 to August 2026.