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

Step 1: Understand the conversion factor

1 lb is equal to approximately 0.45359237 kg. This is the conversion factor we will use to convert pounds to kilograms.

Step 2: Set up the conversion equation

To convert 125 lbs to kg, we can set up the equation as follows:

125 lbs * (0.45359237 kg/1 lb)

Step 3: Cancel out the units

In the equation, the unit “lbs” is present in both the numerator and denominator. This allows us to cancel out the unit and perform the calculation. The equation becomes:

125 * 0.45359237 kg

Step 4: Perform the calculation

Multiply 125 by 0.45359237 to get the result:

125 * 0.45359237 = 56.69904625 kg

Step 5: Round the result (if necessary)

In this case, the result is a decimal number. If you need to round it to a certain number of decimal places, you can do so. For example, rounding to two decimal places, the result would be:

56.70 kg

Therefore, 125 lbs is approximately equal to 56.70 kg.