Than and then look almost identical, but they do different jobs in a sentence. The easiest way to separate them is to identify what the sentence is doing.
Use than when you are comparing people, things, amounts, or choices. Use then when you mean a time, the next step, or a result that follows a condition.
For example:
My new phone is faster than my old one.
We finished dinner and then watched a movie.
The difference is small in spelling but important in meaning. Once you recognize the role each word plays, the choice becomes much easier.
Quick Answer
Use than for comparisons: better than, more than, less than, faster than, rather than.
Use then for time, sequence, or a result: back then, first this then that, if this happens then that follows.
A simple test is to ask whether the sentence compares something. If yes, than is usually the right choice. If the sentence tells when something happened, what happens next, or what follows from a condition, use then.
Why People Confuse Them
The two words differ by only one letter and have closely related pronunciations in some forms of everyday speech. That makes them easy to mix up while typing.
Their meanings, however, are distinct.
Than introduces a comparison or contrast:
This route is shorter than the other one.
Then usually places something in time or order:
We checked the map and then left.
Then can also introduce a result:
If the store is closed, then we’ll come back tomorrow.
Another reason for confusion is that both words appear frequently in everyday sentences. A writer who types quickly may accidentally use one in place of the other without noticing.
Key Differences At A Glance
| Feature | Than | Then |
|---|---|---|
| Main function | Comparison or contrast | Time, sequence, or result |
| Common role | Preposition or conjunction | Adverb; also adjective and noun in established uses |
| Example | This one is cheaper than that one. | We ate then left. |
| Common pattern | more than, better than | first, then; if, then |
| Main question | Compared with what? | When or what happens next? |
A second quick comparison:
- Than → compares or contrasts.
- Then → tells when, what comes next, or what follows from a condition.
Meaning and Usage Difference
Than
Than is used to introduce the second part of a comparison.
Jordan is taller than Alex.
This laptop costs less than the other model.
The drive took longer than I expected.
It commonly follows comparative words such as better, faster, older, smaller, more, less, and fewer.
She finished earlier than I did.
We need fewer than ten chairs.
Than also appears when one option is preferred over another:
I’d rather walk than drive.
It can also occur in established expressions such as other than:
Everyone came other than Mike.
Then
Then has several closely related uses.
It can refer to a particular time:
I lived in Chicago then.
It can show what happens next:
First, save the file. Then close the program.
It can show a result or consequence:
If you finish early, then you can leave.
It can also add information:
The job is demanding, and then there is the long commute.
This makes then more flexible in sentence structure than than, but its basic connection remains time, sequence, addition, or consequence.
Tone, Context, and Formality
There is no special US-English rule that changes the basic distinction between than and then. The same core difference applies in everyday, academic, business, and professional writing.
The important formal issue is sometimes the construction that follows than.
Consider:
She is taller than I am.
This makes the comparison explicit and is a clear choice in formal writing.
In everyday American English, you will also commonly hear:
She is taller than me.
That construction is widely used in ordinary speech and informal writing. The choice can depend on the grammatical structure and the meaning intended.
For example:
He likes her more than I do.
means something different from:
He likes her more than me.
The first compares his liking with your liking. The second can be understood as comparing his liking for her with his liking for you.
When clarity matters, completing the implied clause can remove the ambiguity.
Which One Should You Use?
Choose than when the sentence compares one thing with another.
My new apartment is bigger than my old one.
This route is quicker than the highway.
We need more than five volunteers.
Choose then when the sentence refers to time or sequence.
We went to the store and then came home.
I was living in Texas then.
Choose then after an if condition when it introduces the result.
If the weather improves, then we’ll go hiking.
A useful memory aid is:
than = comparison
then = time, next, or result
When One Choice Sounds Wrong
Some mistakes are especially easy to spot because they break a familiar expression.
Incorrect:
This one is better then that one.
Correct:
This one is better than that one.
The sentence compares two things, so than is required.
Incorrect:
We finished lunch and than went back to work.
Correct:
We finished lunch and then went back to work.
The sentence describes a sequence, so then is correct.
Incorrect:
I’d rather stay home then go out.
Correct:
I’d rather stay home than go out.
The sentence contrasts two choices, so than is required.
Incorrect:
If you’re ready, than we can leave.
Correct:
If you’re ready, then we can leave.
Here then introduces the result of the condition.
Common Mistakes (and Quick Fixes)
“Better then” instead of “better than”
Use better than when comparing two things.
This version is better than the original.
“More then” instead of “more than”
Use more than for comparisons involving amounts or degree.
The repair cost more than I expected.
“First this, than that”
Use then for order.
First we’ll review the plan, then we’ll make a decision.
“Rather then”
The standard phrase is rather than.
I’d rather read than watch TV.
“Other then”
The established expression is other than.
No one other than Sarah knew about the change.
“If…than”
Use if…then when the second part gives the result.
If traffic is heavy, then we’ll take another route.
A useful final check
Look at the meaning, not just the spelling.
If you can replace the word with compared with or it follows a comparison, choose than.
If you can replace it with next, after that, or at that time, choose then.
Everyday Examples
Here are realistic examples from common situations.
Shopping
This jacket is cheaper than the one I tried yesterday.
Work
Finish the report, then send it to the manager.
School
Maya scored higher than I did on the test.
Travel
We checked into the hotel and then went out for dinner.
Cooking
Add the tomatoes, then reduce the heat.
Appointments
I’ll call you then when I have the final information.
Money
The repair cost more than we expected.
Choices
I’d rather take the train than drive.
Conditions
If the store closes early, then we’ll shop tomorrow.
Past time
Things were different back then.
Notice that every example can be classified by function. Than compares or contrasts. Then identifies time, sequence, or consequence.
Dictionary-Style Word Details
Verb
- Than: Not commonly used as a verb in standard US English.
- Then: Not commonly used as a verb in standard US English.
Neither word should be treated as an ordinary verb in a sentence.
Noun
- Than: Not commonly used as a noun in standard US English.
- Then: Then can function as a noun meaning a particular time, especially in expressions such as since then and until then.
We haven’t been back there since then.
This noun use is established in American English dictionaries, although then is most commonly encountered as an adverb.
Synonyms
- Than: It does not have a simple exact synonym that can replace it in ordinary comparison structures. Depending on the sentence, a phrase such as compared with may express a similar idea, but it cannot replace than in every construction.
- Then: Depending on meaning, closest plain alternatives include at that time, next, afterward, later, or in that case.
These alternatives are meaning-dependent rather than universal replacements.
Example Sentences
Than
The blue car is faster than the red one.
We spent less than $50.
I’d rather call than send a text.
Then
We ate dinner and then watched a movie.
I didn’t know that then.
If you agree, then we’ll move forward.
Word History
The two words have an interesting historical connection. Major dictionaries trace than and then to related Old English forms, and Oxford notes that than was originally the same word as then.
That historical relationship does not mean the modern words are interchangeable. Modern English uses them for different grammatical and semantic purposes.
Phrases Containing
Than
- better than
- more than
- less than
- fewer than
- rather than
- other than
- sooner than
- easier said than done
Then
- back then
- since then
- until then
- and then
- then again
- every now and then
- then and there
- now and then
These phrases make the distinction easier to recognize because each word appears in a familiar pattern.
FAQs
What is the main difference between than and then?
Than is used for comparisons, while then is used for time, sequence, or a result. For example, “This car is faster than that one” compares two cars, while “We ate dinner and then left” shows sequence.
Is it better than or better then?
The correct phrase is better than because it compares two things or people.
This laptop is better than my old one.
Is it more than or more then?
The correct expression is more than. Use than when comparing amounts, numbers, or degrees.
The repair cost more than I expected.
Should I use than or then after “if”?
Use then in the common conditional structure if…then when introducing a result.
If it rains, then we’ll stay home.
The word than is not used to introduce the result of an if-condition.
Is “rather than” or “rather then” correct?
The correct phrase is rather than. It is used when choosing or contrasting one option with another.
I’d rather walk than drive.
Is “then” ever used for comparison?
Normally, no. Than is the standard word for comparisons, such as older than, better than, and more than. Then is generally used for time, sequence, or consequence.
How can I easily remember than vs then?
Remember than = comparison and then = time or sequence. If you are comparing two things, use than; if you mean “next,” “after that,” or “at that time,” use then.
Conclusion
The difference between than and then is mainly about function.
Use than for comparisons, contrasts, amounts, and preferences:
This option is better than the other one.
Use then for time, sequence, and consequences:
We’ll finish this task and then take a break.
When you’re unsure, ask one question: Am I comparing something, or am I describing time, order, or a result? Comparison points to than; time, sequence, or result points to then.
