To convert kilograms (kg) to pounds (lbs), you can use the following step-by-step instructions:

Step 1: Understand the conversion factor

1 kilogram (kg) is equal to 2.20462 pounds (lbs). This means that to convert kg to lbs, you need to multiply the weight in kg by 2.20462.

Step 2: Set up the conversion equation

Let’s denote the weight in kg as Wkg and the weight in lbs as Wlbs. The conversion equation can be written as:

Wlbs = Wkg * 2.20462

Step 3: Plug in the given weight in kg

In this case, the given weight is 139 kg. So, we substitute Wkg = 139 into the equation:

Wlbs = 139 * 2.20462

Step 4: Perform the calculation

Using a calculator, multiply 139 by 2.20462:

Wlbs ≈ 306.44

Step 5: Round the result (optional)

Since weight is typically rounded to the nearest whole number, you can round 306.44 to the nearest pound:

Wlbs ≈ 306

Therefore, 139 kg is approximately equal to 306 lbs.