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 90 lbs to kg, we can set up the equation as follows:
90 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. By multiplying the value by the conversion factor, the unit “lbs” will cancel out, leaving us with the desired unit “kg.”
Step 4: Perform the calculation
Now, let’s calculate the conversion:
90 lbs * (0.45359237 kg/1 lb) = 40.8233133 kg
Step 5: Round the answer (if necessary)
In this case, the answer is already rounded to 10 decimal places. However, if you need to round it further, you can do so according to your desired level of precision.
Therefore, 90 lbs is approximately equal to 40.8233133 kg.