US letters to US numbers
Type a value in US letter to get it in US instantly.
6US
That's 1.07× as thick as the hook for sport yarn, while the hook for DK yarn is 1.13× thicker.
Convert the other way: US to US letter
What it means
Which yarn suits that hook?
Steel hooks for thread use a separate, reversed numbering and are not covered here. Brands differ slightly above 6 mm.
The math
How to convert US letter to US
Hook sizes are a table: H-8 = 5 mm, G-6 = 4 mm, J-10 = 6 mm. The letter and the number name the same hook.
Example: G-6 US letter = 6 US.
Every unit
That hook in every system
Tables
US letter to US conversion table
| US letter | US |
|---|---|
| B-1 US letter | 1 US |
| C-2 US letter | 2 US |
| D-3 US letter | 3 US |
| E-4 US letter | 4 US |
| F-5 US letter | 5 US |
| G-6 US letter | 6 US |
| 7 US letter | 7 US |
| H-8 US letter | 8 US |
| I-9 US letter | 9 US |
| J-10 US letter | 10 US |
| K-10.5 US letter | 10.5 US |
| L-11 US letter | 11 US |
| M/N-13 US letter | 13 US |
| N/P-15 US letter | 15 US |
US to US letter conversion table
| US | US letter |
|---|---|
| 1 US | B-1 US letter |
| 2 US | C-2 US letter |
| 3 US | D-3 US letter |
| 4 US | E-4 US letter |
| 5 US | F-5 US letter |
| 6 US | G-6 US letter |
| 7 US | 7 US letter |
| 8 US | H-8 US letter |
| 9 US | I-9 US letter |
| 10 US | J-10 US letter |
| 10.5 US | K-10.5 US letter |
| 11 US | L-11 US letter |
| 13 US | M/N-13 US letter |
| 15 US | N/P-15 US letter |
Quick answers
Quick answers
- How many US is B-1 US letter?
- B-1 US letter is 1 US.
- How many US is J-10 US letter?
- J-10 US letter is 10 US.
- How many US is G-6 US letter?
- G-6 US letter is 6 US.
The units
About these units
US letters (US letter)
B-1 to N/P-15. Type the letter: H, K or M/N.
US numbers (US)
The number after the letter, from 1 to 15.
Keep going