# Thread: Need Help Finding Tolerance

1. ## Need Help Finding Tolerance

O.k. I cannot find anything on the web on how to find tolerance in relationship to diameter. So any help will be great!

This is what I need help with:

A bath tissue is 4" in diameter, the customer requires +/- 1/8"

What is the upper tolerance?
What is the lower tolerance?

Forgot How do you find the answers step by step in simple terms I can understand.

Help!

2. Originally Posted by College_Student
O.k. I cannot find anything on the web on how to find tolerance in relationship to diameter. So any help will be great!

This is what I need help with:

A bath tissue is 4" in diameter, the customer requires +/- 1/8"

What is the upper tolerance?
What is the lower tolerance?

Forgot How do you find the answers step by step in simple terms I can understand.

Help!
Upper tolerance: $4+\tfrac{1}{8}=\dots$
Lower tolerance: $4-\tfrac{1}{8}=\dots$