10/32 to 11/32 is brand new.
7/32 is partially worn.
below 5/32 is seriously compromised for winter driving.
below 4/32 is compromised for wet driving
2/32 or less is worn out usually legal limit.
See how your tires wear and are working for you.
For me my tires are at 5/32 and are ice skates and scary winter driving but still incredible in wet and dry conditions.