For American English, the answer is straightforward: smelled. It is the standard past tense and past participle of smell in the United States and Canada, and it is what every major American style authority expects.
Smelt is the British English variant. It is not a misspelling or a grammar error — it is a recognized alternate form that British writers have used for centuries. But in American writing, it reads as non-standard and will jar most readers.
I smelled smoke coming from the kitchen. (American English)
(British) I smelt smoke coming from the kitchen.
Both sentences are grammatically correct in their respective dialects. The choice depends on which variety of English you’re writing for.
How “Smell” Got Two Past Tenses
The verb smell entered written English around 1200 as Middle English smellen, likely of Germanic origin. The Online Etymology Dictionary notes it is probably cognate with Middle Dutch smolen and Low German smelen, both meaning “to smolder” — suggesting the original sense was something like “to emit fumes.” The word had no surviving Old English written form, though the OED considers an Old English origin probable.
The two past tense forms — smelled and smelt — reflect a divide in how English verbs developed their past tenses.
Most modern English verbs are regular: they form the past tense by adding -ed (walk → walked, learn → learned). A smaller group is irregular: the verb changes in less predictable ways (catch → caught, know → knew). Smell belongs to a middle category of verbs that can go either way. These verbs — also including burn, learn, spell, dream, and kneel — developed both a regular -ed form and an older -t ending that comes from an earlier Germanic pattern of consonant substitution in past tenses.
American English resolved this ambiguity by standardizing the regular forms: burned, learned, spelled, dreamed, smelled. British English preserved the -t forms alongside the -ed forms, treating them as interchangeable: burnt/burned, learnt/learned, spelt/spelled, dreamt/dreamed, smelt/smelled.
What American and Canadian English Use
In American and Canadian English, smelled is the only standard form — for both the simple past tense and the past participle.
Simple past: The kitchen smelled like burnt toast.
Past participle (present perfect): I’ve never smelled anything quite like it.
Past participle (past perfect): She hadn’t smelled anything unusual until she opened the door.
Smelt in the sense of a past odor is essentially absent from American usage. It won’t appear in major American newspapers, style guides, or professional writing. If you’re writing for a US audience — news articles, business communications, academic papers — use smelled throughout.
What British English Uses
In British English, both forms are standard and both appear in print with roughly equal frequency in modern publications. Neither is incorrect.
The stew smelt wonderful on the stove. (British English)
The stew smelled wonderful on the stove. (also British English)
One notable trend: according to corpus data and usage researchers, smelled is gaining on smelt even in British writing, particularly in journalism and formal prose. Younger British writers and modern British publications increasingly favor smelled. The traditional preference for smelt remains — it is not disappearing — but the binary “Americans say smelled, British say smelt” is now less clean-cut than it once was.
Which Form Should You Use?
| Context | Best Choice | Why |
|---|---|---|
| American or Canadian English | smelled | The only standard form in North American usage |
| British English | smelled or smelt | Both recognized; smelt is traditional, smelled is gaining |
| International audience, no regional preference | smelled | More universally understood and accepted |
| Literary fiction imitating older British speech | smelt | Appropriate regional or period flavor |
| Any professional or formal American writing | smelled | Style guides and publications universally expect this form |
The Three Meanings of “Smelt” — And Why They Matter
Smelt does three different things in English, and they are not related to one another. Knowing the difference prevents real confusion.
1. Past tense of “smell” (British English): She smelt the flowers as she walked past.
2. A small silvery fish: Smelts are popular with ice fishers in the Great Lakes region. This is a noun. Its plural is smelts (for individual fish) or smelt (collective). It has nothing to do with the verb smell.
3. Present tense of the verb “to smelt” (metalworking): To smelt means to melt ore in order to extract metal. It is a completely separate verb, etymologically unrelated to smell. Its past tense is smelted, not smelt: The factory smelted copper ore using a blast furnace.
This last distinction is frequently misunderstood. To smelt (metalworking) and to smell (perceiving odors) are different words. The metalworking verb uses the regular -ed past tense — smelted — in all varieties of English, including British English. You would never write “the furnace smelt the ore” to mean smelting in the metalworking sense.
“Smell” as a Linking Verb — A Practical Grammar Point
Whether you write smelled or smelt, one grammar rule applies to both: when smell is used as a linking verb (also called a copular verb), it takes an adjective, not an adverb.
The soup smelled delicious. ✔ (delicious is an adjective modifying soup)
The soup smelled deliciously. ✗ (deliciously is an adverb; incorrect here)
The roses smelt sweet. ✔
The roses smelt sweetly. ✗
This is the same rule that applies to all linking verbs: The milk tastes sour, not sourly. The room looks clean, not cleanly. When smell connects the subject to a description of the subject itself, the descriptor must be an adjective. When smell describes the act of perceiving a scent, it can take an adverb: She smelled the wine carefully. (carefully describes how she smelled it — the verb is not linking here.)
The Preposition Patterns
Smell pairs with two prepositions to describe what something’s scent resembles or consists of.
Smell of — more common in British English; describes the characteristic scent: The room smelled of coffee and old books.
Smell like — more common in American English; describes resemblance: The garage smelled like gasoline.
Both are standard in all varieties of English, and either can appear in the past tense with smelled or smelt.
Common Mistakes and Quick Fixes
Mistake: Using smelt in American formal writing.
Fix: Replace with smelled. Even in casual American writing, smelt reads as odd or foreign to most US readers.
Mistake: Treating smelt as simply wrong everywhere.
Fix: It’s wrong for American English but standard in British English. If you’re editing British writing, leave smelt alone.
Mistake: Writing “the furnace smelt the ore” to describe metalworking.
Fix: The metalworking verb is to smelt, and its past tense is smelted: “the furnace smelted the ore.” It is not a form of the verb smell.
Mistake: Using an adverb after smell as a linking verb.
Fix: When smell links the subject to a quality, use an adjective: The bread smelled wonderful, not smelled wonderfully.
Examples Side by Side
The coffee smelled amazing from across the room. (American English)
(British) The coffee smelt amazing from across the room.
By the time we arrived, the place had smelled like mildew for weeks. (American past perfect)
(British) By the time we arrived, the place had smelt like mildew for weeks.
The factory had smelted thousands of tons of aluminum ore by 1950. (metalworking verb — smelted in all varieties of English)
I’ve never smelled anything quite that good. ✔ (American past participle)
I’ve never smelt anything quite that good. ✔ (British past participle)
Quick Practice
Choose the correct form for American English.
- She said she [smelled / smelt] gas near the back of the building.
- The workers [smelted / smelt] the ore in a blast furnace.
- The air [smelled / smelt] like rain just before the storm hit.
- Have you ever [smelled / smelt] anything stranger than that?
- The facility [smelted / smelt] copper for fifty years before it closed.
Answers: 1. smelled — 2. smelted (metalworking verb) — 3. smelled — 4. smelled — 5. smelted (metalworking verb)
FAQs
Is “smelt” a real word or a misspelling?
It’s a real word with multiple meanings. In British English, it is a recognized past tense of smell. It also refers to a small fish and to the metalworking process of extracting metal from ore. In American English, smelt as a past tense of smell is non-standard and rarely appears in edited prose.
Which form should Americans always use?
Smelled — for both the simple past (the room smelled damp) and the past participle (it has always smelled this way). This applies across all registers of American writing: formal, professional, academic, and casual.
Is “smelt” ever correct in an American context?
As a past tense of smell, it’s not standard and will read as unusual to American audiences. However, smelt appears in American English in two unrelated contexts: as a noun for the fish, and as a form of the metalworking verb to smelt (though the standard metalworking past tense is smelted).
Does Canadian English use “smelled” or “smelt”?
Canadian English follows the American pattern and uses smelled as the standard past tense. Smelt is not a standard Canadian English form either.
Why do “burn,” “learn,” and “smell” all have two past tense options?
These verbs belong to a group that developed both a regular -ed ending and an older -t ending during the history of English. American English standardized the -ed forms (burned, learned, smelled), while British English retained both options. The -t endings are not irregular in the dramatic sense of catch → caught — they are semi-regular forms from an older Germanic pattern.
What is the past tense of the metalworking verb “to smelt”?
Smelted — in all varieties of English, including British. The metalworking to smelt is a completely separate verb from to smell and does not follow the same pattern. You would never write “the furnace smelt the ore” to mean smelting.
Is “smelt” becoming less common even in British English?
Yes, gradually. Corpus data and usage researchers indicate that smelled is gaining frequency in British publications and that younger British writers increasingly prefer it. Both forms remain standard in British English, but the traditional dominance of smelt in British usage is less pronounced than it once was.
The Bottom Line
American English uses smelled — always, for every use of the past tense or past participle. British English accepts both smelled and smelt, with smelled increasingly common even there. Smelt is not a grammar error in British writing, but it will read as non-standard to American audiences and should not appear in US-targeted prose. Keep smelt (fish), smelt (British past tense of smell), and smelted (past tense of the metalworking verb) straight, and the only question remaining is which variety of English you’re writing for.
Conclusion
“Smelled” is the standard past tense of “smell” in American English, while “smelt” belongs to British usage. Neither is a spelling error — the right choice simply comes down to which English you’re writing for.
