That is 37 = 32 + 30/6.1 ]]>

There are other ways to arrive at this number. For instance the formula in this paper

https://bmcmedresmethodol.biomedcentral.com/articles/10.1186/1471-2288-12-115

Using your present height and weight, your waist is predicted to be

98 cm or 38.6 inches

(22.61306+2.520738*(27.4)+0.1583812*(40)−3.703501*(0)−1.736731*(0))

At 158 pounds, your waist is predicted to be

(22.61306+2.520738*(24.7)+0.1583812*(40)−3.703501*(0)−1.736731*(0))

91.2 cm or 35.9 inches

All I did was plugged in your current BMI of 27.4 and your target BMI of 24.7.

It predicted that if you lose 17 pounds, your waist will drop 2.7 inches.

This is 6.2 pounds per inch.

My estimate was 6.1 pounds per inch.

I looked at a handful of papers in the academic literature, and they found that a 1 KG loss is associated with about .9cm waist circumference.

This is also about 6.2 pounds per inch.

]]>Been trying to figure out this myself, but there will be a few of different factors that will change the number (mainly height and current weight).

I used the numbers of my own weight gain through the years and figured out that the relationship is not linear/constant, and the higher is your current weight, higher is the number of pounds to reduce your waist size.