How do I work out total position tolerance at MMC?

Find the MMC size (smallest hole, largest pin). Bonus is how far the measured size is from MMC. Total = stated tolerance + bonus.

What if there is no circled M?

Then there is no bonus. The stated tolerance is all the part gets, at any size.

GD&T: lesson 4 of 4Harder

Work out the size or tolerance the question asks for and type it. Get 10 right to finish.

How much bonus tolerance does this part get?

Hole, inches. Ø.500 to .506, position Ø.010 at MMC, measured .503. MMC is the smallest hole, .500. Bonus: .503 - .500 = .003. Total: .010 + .003 = .013.
Pin, metric. Ø11.80 to 12.00, position Ø0.10 at MMC, measured 11.90. MMC is the largest pin, 12.00. Bonus: 12.00 - 11.90 = 0.10. Total: 0.10 + 0.10 = 0.20.

Type the number only: .013 or 0.20. The Ø sign and the unit are optional. If you are stuck after two tries, you can show the answer.

How do I work out total position tolerance at MMC?: Find the MMC size (smallest hole, largest pin). Bonus is how far the measured size is from MMC. Total = stated tolerance + bonus.
What if there is no circled M?: Then there is no bonus. The stated tolerance is all the part gets, at any size.

Explained in our own words and checked against several GD&T references. For the full rules, see ASME Y14.5-2018 and ISO 1101:2017.