Conversion formula

The conversion factor from ounces to pounds is 0.0625, which means that 1 ounce is equal to 0.0625 pounds:

1 oz = 0.0625 lb

To convert 138.9 ounces into pounds we have to multiply 138.9 by the conversion factor in order to get the mass amount from ounces to pounds. We can also form a simple proportion to calculate the result:

1 oz → 0.0625 lb

138.9 oz → M_(lb)

Solve the above proportion to obtain the mass M in pounds:

M_(lb) = 138.9 oz × 0.0625 lb

M_(lb) = 8.68125 lb

The final result is:

138.9 oz → 8.68125 lb

We conclude that 138.9 ounces is equivalent to 8.68125 pounds:

138.9 ounces = 8.68125 pounds

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 pound is equal to 0.11519078473722 × 138.9 ounces.

Another way is saying that 138.9 ounces is equal to 1 ÷ 0.11519078473722 pounds.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that one hundred thirty-eight point nine ounces is approximately eight point six eight one pounds:

138.9 oz ≅ 8.681 lb

An alternative is also that one pound is approximately zero point one one five times one hundred thirty-eight point nine ounces.

Conversion table

ounces to pounds chart

For quick reference purposes, below is the conversion table you can use to convert from ounces to pounds