# 1 to 10, 1 through 10

#### Sergiotcj

##### Senior Member
1 to 10
1 through 10
Are both correct?
Are they interchangeable?

Thanks

• #### JordyBro

##### Senior Member
In regard to spans yes (eg ten to twenty women, monday to friday), although the first reading is also used for ratios if my memory recalls me, for example 2:1 is read two to one (but not two through one).

#### cando

##### Senior Member
"1 through 10" is a distinctively AE mode of expression. BrE uses "1 to 10" for spans.

#### velisarius

##### Senior Member
The term 1 through 10 is used in American English and I take it as meaning "one to ten, including ten".

I think that is more specific than 1 to 10, where 10 is not necessarily included (though it normally is). I am expecting others to disagree with that.

Last edited:

#### cando

##### Senior Member
I would understand "1 to 10" to mean the whole series including 10, not 1 -9. If there was doubt, I might add "inclusive" to the phrase to make it clear.

#### Sergiotcj

##### Senior Member
Thank you!
How about 1 up to 10? I think 10 is not included here, am I right?

#### cando

##### Senior Member
Thank you!
How about 1 up to 10? I think 10 is not included here, am I right?
I'm not so sure about that. Again I would normally understand that 10 is included. The nuance has changed by using "up to" suggesting that this is not just a series or set but a limiting statement with 10 as the upper limit and emphasising that there is nothing beyond. Again, if there was doubt, I would add "up to and including 10". Sorry but English isn't always very precise.

#### Egmont

##### Senior Member
As I see it:

In American English: They are not interchangeable. "1 through 10" always includes 10. "1 to 10" is ambiguous. It may include 10 or it may not. I would usually take it not to include 10, since we have the word "through" to describe the situation where we want to include it.

In British English: They are also not interchangeable, but for a different reason: the word "through" is not used in this context. "To" has the same ambiguity problem as it does in AE. A BE speaker would say something like "1 to 10, inclusive" to be completely clear.

< Previous | Next >