To convert pounds (lbs) to kilograms (kg), you can use the following formula:

1 pound = 0.453592 kilograms

So, to convert a weight value from pounds to kilograms, you can multiply the weight in pounds by 0.453592.

Here are the step-by-step instructions to convert pounds to kilograms:

Step 1: Write down the weight value in pounds that you want to convert to kilograms.

Step 2: Multiply the weight in pounds by 0.453592. For example, if the weight is 150 pounds, the calculation would be: 150 lbs * 0.453592 = 68.0388 kg

Step 3: Round the result to the desired number of decimal places. In this case, the weight in kilograms would be approximately 68.04 kg.

So, 150 pounds is approximately equal to 68.04 kilograms.

You can use this method to convert any weight value from pounds to kilograms. Just remember to multiply the weight in pounds by 0.453592 to get the equivalent weight in kilograms.