## Conversion formula

The conversion factor from ounces to kilograms is 0.028349523125, which means that 1 ounce is equal to 0.028349523125 kilograms:

1 oz = 0.028349523125 kg

To convert 9 ounces into kilograms we have to multiply 9 by the conversion factor in order to get the mass amount from ounces to kilograms. We can also form a simple proportion to calculate the result:

1 oz → 0.028349523125 kg

9 oz → M(kg)

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

M(kg) = 9 oz × 0.028349523125 kg

M(kg) = 0.255145708125 kg

The final result is:

9 oz → 0.255145708125 kg

We conclude that 9 ounces is equivalent to 0.255145708125 kilograms:

9 ounces = 0.255145708125 kilograms

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilogram is equal to 3.9193291055089 × 9 ounces.

Another way is saying that 9 ounces is equal to 1 ÷ 3.9193291055089 kilograms.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that nine ounces is approximately zero point two five five kilograms:

9 oz ≅ 0.255 kg

An alternative is also that one kilogram is approximately three point nine one nine times nine ounces.

## Conversion table

### ounces to kilograms chart

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

ounces (oz) kilograms (kg)
10 ounces 0.283 kilograms
11 ounces 0.312 kilograms
12 ounces 0.34 kilograms
13 ounces 0.369 kilograms
14 ounces 0.397 kilograms
15 ounces 0.425 kilograms
16 ounces 0.454 kilograms
17 ounces 0.482 kilograms
18 ounces 0.51 kilograms
19 ounces 0.539 kilograms