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# Which Way Do YOU Personally Convert EU to US Suit / SC Sizes? (There Are 2 Schools of Thought...)

### Poll Results: Which Way Do You Personally Convert EU to US Suit / SC Sizes? (There Are 2 Schools of Thought...)

• 100% (2)
Subtract 10
• 0% (0)
The Other Method -- double the Euro size, and divide by 2.54 to get inches/US size (Example: a 50 EU would be 2 x 50 = 100 cm in circumference. Then, 100/2.54 = 39.4 inches, i.e. a US size 39.4.)
I have always used the rule of thumb of "subtract 10" from the European size to get your American size. For example, a 50R EU becomes a 40R EU,a 54R EU becomes a 44R US, 58R EU becomes a 48R US, and so forth. Most online retailers, SFers and eBayers seem to follow this rule of thumb. The better stores and sellers also provide measurements to give you peace of mind. Far and way, "Subract 10" seems to be the most popular method.

I recently became aware that the old school way to convert is this way. I'll quote an explanation from an old SF thread. (Paging @thinman if he still posts here)
Quote:
The correct conversion results from the fact that the Euro measurement is the distance across the front of the jacket, lying flat, in centimeters. Double the Euro size to get the jacket circumference in cm, then divide by 2.54 to convert cm to inches. For example, a Euro 50 would be 2 x 50 = 100 cm in circumference or 100/2.54 = 39.4 inches, i.e. a US size 39.4. Thus a Euro size 58 would be 2 x 58 = 116 cm in circumference and a US size 116/2.54 = 45.7. You can easily see that subtracting 10 from the Euro size to get the US size is an approximation that works increasingly poorly as the Euro size increases and is more that 2 sizes off for a Euro 56.

Edit: So the US sizes equivalent to common Euro sizes are :

Euro 48 = US 37.8
Euro 50 = US 39.7
Euro 52 = US 40.9
Euro 54 = US 42.5
Euro 56 = US 44.1
Euro 58 = US 45.7
Euro 60 = US 47.2

http://www.styleforum.net/t/296935/what-is-the-origin-of-european-suit-sizing/0_50#post_5375881

I was wondering which method you all personally use when you browse for stuff online? Do you use "subtract 10" or the other method?

Well, when just browsing I use the -10 rule of thumb.  But I’d never actually buy anything without getting the actual measurements, at which point it becomes entirely irrelevant what it’s called.

Cheers,

Ac

Quote:

Well, when just browsing I use the -10 rule of thumb.  But I’d never actually buy anything without getting the actual measurements, at which point it becomes entirely irrelevant what it’s called.

Cheers,

Ac

Believe it or not, there are a few people that are dead set on the other method. I had one person on eBay message me and say that the Subtract 10 method was wrong and throwing off his browsing method

They are both correct
Jacket circumference method doesn't quite make sense to me unless we're actually talking about the body circumference. That is a EU48 jacket can't actually be 96 cm in circumference or else it'd be literally skin tight.
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• Which Way Do YOU Personally Convert EU to US Suit / SC Sizes? (There Are 2 Schools of Thought...)
Styleforum › Forums › Men's Style › Classic Menswear › Which Way Do YOU Personally Convert EU to US Suit / SC Sizes? (There Are 2 Schools of Thought...)