Then vs than is one of those word pairs that looks small but causes big mistakes.
Both words are correct. However, they are not correct in the same places. Then points to time, order, next steps, or result. Than is used for comparison.
That one-letter difference matters. “I ate lunch, then left” is right because it shows what happened next. “This lunch is better than yesterday’s” is right because it compares two lunches.
So, the choice is not about which word is more formal. It is about what your sentence is doing. If the sentence compares, use than. If the sentence shows time, order, or result, use then.
By the end of this guide, you will know which word fits, why it fits, and how to avoid the most common mistakes.
Quick Answer
Use then when you mean at that time, next, after that, or in that case.
Use than when you compare one thing with another.
They are not interchangeable.
Correct: I finished my homework, then watched TV.
Correct: This assignment was easier than the last one.
Correct: If you are ready, then we can leave.
Correct: I would rather leave now than wait another hour.
A simple memory trick works well: than has an a, like compare. Then has an e, like next. It is not a perfect language rule, but it can help you pause before choosing.
Why People Confuse Them
People confuse then and than because the words look almost the same. They are only one letter apart.
They can also sound close in fast speech. In casual conversation, a sentence like “better than that” may come out quickly, so the vowel difference is easy to miss.
However, the real issue is not sound. The real issue is sentence function.
Then helps place something in time or order.
Example:
We stopped for gas, then drove to Dallas.
Than compares people, places, things, amounts, or actions.
Example:
Gas was cheaper than I expected.
The mistake often happens when a writer focuses on sound instead of meaning. For example, “better then” may sound close to “better than,” but it is wrong because better starts a comparison.
Likewise, “we ate and than left” is wrong because the sentence is not comparing anything. It is showing the next step.
Key Differences At A Glance
| Context | Best Choice | Why |
|---|---|---|
| Showing what happened next | Then | It shows order or sequence |
| Talking about a past or future time | Then | It means “at that time” |
| Showing a result | Then | It can mean “in that case” |
| Comparing two things | Than | It introduces the second part of a comparison |
| Using words like better, more, less, older, faster | Than | These words usually signal comparison |
| Using phrases like and then, since then, back then | Then | These phrases point to time |
| Using phrases like rather than, other than, more than | Than | These phrases compare, exclude, or show preference |
The fastest test is this: ask whether the sentence compares.
If yes, choose than.
If no, ask whether the sentence shows time, order, or result.
If yes, choose then.
Meaning And Usage Difference
Then usually works like an adverb. It tells when something happened, what happened next, or what follows from a situation.
Use then for time.
Example:
I lived in Denver then.
This means “at that time.”
Use then for sequence.
Example:
Submit the form, then check your email.
This means one action comes after another.
Use then for result or consequence.
Example:
If the store is closed, then we can order online.
This means “in that case.”
Than works in comparisons. It introduces the person, thing, amount, or idea being compared.
Example:
This route is faster than the highway.
The sentence compares two routes.
Example:
She saved more money than she expected.
The sentence compares the amount she saved with the amount she expected.
Example:
I would rather call than text.
The sentence compares two choices.
Here is the key difference in a compact form:
| Feature | Then | Than |
|---|---|---|
| Main Job | Shows time, order, or result | Shows comparison |
| Common Meaning | At that time, next, in that case | Compared with |
| Common Grammar Role | Mostly adverb | Conjunction or preposition |
| Common Phrases | and then, since then, back then | more than, rather than, other than |
| Quick Cue | Time or next step | Comparison |
The words do not overlap in normal modern writing. You may see them near each other in the same sentence, but each still has its own job.
Example:
The new laptop costs more than my old one, and then I still have to buy a case.
In that sentence, than compares costs. Then adds the next point.
Tone, Context, And Formality
The choice between then and than is not really about tone. It is about correctness.
You do not choose then to sound casual or than to sound formal. You choose the word that fits the sentence.
However, formality can matter after than.
In everyday speech, many Americans say:
She is taller than me.
That sounds natural because than can work like a preposition before an object pronoun.
In more formal writing, you may choose:
She is taller than I am.
That version is clearer because it completes the comparison. It also avoids the stiff sound of “than I” by itself.
Compare these:
Natural: My brother is older than me.
More formal and clear: My brother is older than I am.
Both can be acceptable in many contexts. Still, for school papers, formal reports, and polished business writing, the full clause often reads better.
Be careful with meaning, though. Sometimes the pronoun after than changes what the sentence means.
Example:
Maya likes Jordan more than me.
This can mean Maya likes Jordan more than she likes me.
Example:
Maya likes Jordan more than I do.
This means Maya likes Jordan more than I like Jordan.
So, when the comparison could be unclear, add the missing words.
Which One Should You Use?
Use then when your sentence answers when?, what next?, or what follows?
Use than when your sentence answers compared with what?
Here are the most useful cues.
Use then after a time idea.
Examples:
I was in college then.
We can talk then.
Things were different back then.
Use then between steps.
Examples:
Open the app, then sign in.
Read the directions, then start the test.
She packed her bag, then left for the airport.
Use then in an if-result sentence.
Examples:
If it rains, then we will move the party inside.
If you miss the deadline, then you may need approval.
In many sentences, you can leave then out after if, but it is still correct when you want to make the result clear.
Use than after comparison words.
Examples:
This plan is cheaper than the old one.
He runs faster than I do.
The meeting took longer than expected.
Use than in preference phrases.
Examples:
I would rather walk than wait for a ride.
She prefers coffee than energy drinks is not natural.
She prefers coffee to energy drinks is better.
That last example matters. Rather than is standard, but prefer than is usually not the best structure in American English. Use prefer X to Y or would rather X than Y.
Use than in exception phrases.
Examples:
Other than a few typos, the report looks good.
No one than is not the phrase you want. Use other than when you mean “except.”
When One Choice Sounds Wrong
Some mistakes stand out right away because the sentence gives a clear signal.
Better then sounds wrong when you mean comparison.
Wrong: This phone is better then mine.
Correct: This phone is better than mine.
The word better compares two things, so it needs than.
More then sounds wrong for amounts.
Wrong: The repair cost more then $300.
Correct: The repair cost more than $300.
The phrase compares the cost with $300, so use than.
And than sounds wrong when you mean the next action.
Wrong: I showered and than got dressed.
Correct: I showered and then got dressed.
The sentence shows sequence, not comparison.
Other then sounds wrong when you mean “except.”
Wrong: Other then traffic, the drive was easy.
Correct: Other than traffic, the drive was easy.
The phrase is other than.
Rather then sounds wrong when you show preference.
Wrong: I would rather cook then order delivery.
Correct: I would rather cook than order delivery.
The phrase compares two choices.
If…than sounds wrong when you show result.
Wrong: If you are done, than send it to me.
Correct: If you are done, then send it to me.
The sentence means “in that case,” so use then.
Common Mistakes And Quick Fixes
The easiest way to fix these mistakes is to learn the common phrase patterns.
Better than, not better then.
Wrong: Her idea was better then mine.
Correct: Her idea was better than mine.
More than, not more then.
Wrong: We waited more then an hour.
Correct: We waited more than an hour.
Less than, not less then.
Wrong: The file is less then 10 MB.
Correct: The file is less than 10 MB.
Rather than, not rather then.
Wrong: I would rather email then call.
Correct: I would rather email than call.
Other than, not other then.
Wrong: Other then one delay, the trip went well.
Correct: Other than one delay, the trip went well.
And then, not and than.
Wrong: We got coffee and than walked to class.
Correct: We got coffee and then walked to class.
Since then, not since than.
Wrong: I moved in 2021, and since than I have worked from home.
Correct: I moved in 2021, and since then I have worked from home.
Back then, not back than.
Wrong: Back than, rent was cheaper.
Correct: Back then, rent was cheaper.
If…then, not if…than.
Wrong: If you want a refund, than keep the receipt.
Correct: If you want a refund, then keep the receipt.
No sooner…than, not no sooner…then.
Wrong: No sooner had I sat down then the phone rang.
Correct: No sooner had I sat down than the phone rang.
That last phrase can feel unusual because it includes than even though it involves timing. Still, the standard phrase is no sooner…than.
Everyday Examples
Here are natural examples that show how the words work in daily American English.
Use then for time:
I worked at a grocery store back then.
The appointment is at 2:00, so I can meet you after then.
Gas prices were lower then.
We lived in Phoenix then.
Use then for sequence:
I’ll finish this email, then call you.
First, add your password. Then, check your phone for the code.
We grabbed tacos, then went to the game.
She paid the bill, then left a tip.
Use then for result:
If the Wi-Fi is down, then restart the router.
If your name is on the list, then you can enter.
If the meeting runs late, then we will reschedule lunch.
If that is the final price, then I’ll take it.
Use than for comparison:
This coffee is stronger than the one I made at home.
The new schedule works better than the old one.
My commute is shorter than it used to be.
She finished the project faster than expected.
Use than for amounts:
The package weighs more than five pounds.
The repair took less than a day.
The movie was longer than I thought.
We spent more than planned.
Use than for preference:
I would rather drive than fly.
He would rather study at home than go to the library.
They chose to rent rather than buy.
I would rather ask now than guess later.
Use both in one sentence:
The ticket was cheaper than I expected, and then I found a discount code.
She studied harder than last semester, then earned her best grade yet.
The line was longer than usual, but then another register opened.
Dictionary-Style Word Details
This section gives quick reference details for both words. It is not meant to replace the main rule. Instead, it helps you see how each word behaves in a sentence.
Verb
• Then: Then is not commonly used as a verb in standard American English. Do not write sentences like “I thened the task” or “she thens the plan.” Those are not normal uses.
• Than: Than is also not commonly used as a verb. It does not name an action. It helps form comparisons.
So, for both words, the verb category does not commonly apply.
Noun
• Then: Then can work as a noun when it means “that time.”
Examples:
We have not spoken since then.
Until then, please keep the file.
In these examples, then points to a time already mentioned or understood.
• Than: Than does not commonly work as a noun in standard use. It usually connects or introduces the second part of a comparison.
Example:
This desk is wider than that one.
Here, than is not naming a thing. It is helping compare two desks.
Synonyms
• Then: Depending on the sentence, the closest plain alternatives for then are at that time, next, after that, in that case, or therefore.
Examples:
We ate dinner, then watched a movie.
We ate dinner, after that watched a movie.
That rewrite sounds a little stiff, but it shows the meaning.
Example:
If you are finished, then submit the form.
If you are finished, in that case submit the form.
• Than: Than does not have a clean exact synonym in many sentences because it is usually a comparison word. In some cases, the closest plain alternative is compared with.
Example:
This chair is taller than that one.
This chair is taller compared with that one.
The second sentence is less natural, but it helps explain the idea.
Do not force antonyms for these words. They are not like “hot” and “cold.” Their job is grammatical, so opposites are not usually helpful.
Example Sentences
• Then:
I was living in Chicago then.
She locked the door, then started the car.
If you need help, then call the front desk.
Finish your notes first, then send the email.
Things were different back then.
• Than:
This plan is better than the first one.
He arrived earlier than I did.
The final bill was higher than expected.
I would rather save money than spend it today.
Other than the weather, the trip was perfect.
• Both together:
The test was harder than I expected, and then the teacher added extra credit.
That sentence works because than compares the test with the speaker’s expectation, while then shows what happened next.
Word History
• Then: The history of then is tied to older English forms that pointed to time. In modern use, the word still carries that time-based meaning, but it can also show order, addition, or result.
• Than: Than developed as the comparison word. It is historically connected to then, which helps explain why the two words look and sound so close. However, modern writing separates their jobs clearly.
The history is useful, but it should not control your choice. In today’s writing, choose by meaning: time or result takes then; comparison takes than.
Phrases Containing
• Then:
and then — We ate dinner, and then we watched a movie.
back then — Back then, phones were much simpler.
since then — She moved in 2020 and has lived there since then.
until then — The office opens Monday. Until then, email support.
right then and there — He decided right then and there.
every now and then — We still talk every now and then.
if…then — If the price drops, then I’ll buy it.
• Than:
better than — This version is better than the last one.
more than — We waited more than 20 minutes.
less than — The drive took less than an hour.
rather than — I’ll walk rather than wait.
other than — Other than one typo, the email looks good.
no sooner than — No sooner had we left than it started raining.
easier said than done — Saving money is easier said than done.
These phrases are worth memorizing because they prevent the most common mistakes.
FAQ
What is the difference between then and than?
Then shows time, order, or result. Than shows comparison.
Example:
I finished work, then went home.
Home was quieter than the office.
Is it better than or better then?
The correct phrase is better than.
Example:
This chair is better than the old one.
Use than because better compares two things.
Is it more than or more then?
The correct phrase is more than.
Example:
The repair cost more than I expected.
Use than because the sentence compares the real cost with the expected cost.
Is it less than or less then?
The correct phrase is less than.
Example:
The meeting lasted less than 30 minutes.
Use than for amounts and comparisons.
Is it other than or other then?
The correct phrase is other than.
Example:
Other than one delay, the flight was smooth.
Use other than when you mean “except for.”
Is it rather than or rather then?
The correct phrase is rather than.
Example:
I would rather leave early than rush later.
Use than because the phrase compares two choices.
Is it and then or and than?
The correct phrase is and then when you mean “next.”
Example:
We ordered lunch and then went back to work.
Use then because the sentence shows sequence.
Can then and than appear in the same sentence?
Yes. They can appear in the same sentence if each word does its own job.
Example:
The hotel was cheaper than expected, and then we got a free upgrade.
Than compares. Then shows what happened next.
Is than me wrong?
Not always. In everyday American English, than me often sounds natural.
Example:
She is taller than me.
In formal writing, than I am may sound clearer.
Example:
She is taller than I am.
When the meaning could be unclear, complete the comparison.
How can I remember then vs than?
Use this quick check:
If you are comparing, use than.
If you mean time, next, or in that case, use then.
Example:
This is easier than I thought.
Read the question, then answer it.
Conclusion
The difference is simple once you focus on the sentence’s job.
Use then for time, order, next steps, and results. Use than for comparisons, amounts, preferences, and exception phrases.
So, when you face then vs than, ask one question first: am I comparing something? If yes, choose than. If not, and the sentence points to time or what happens next, choose then.
That one quick check will fix most mistakes before they reach the page.
