To convert pounds to kilograms, you can use the conversion factor that 1 kilogram is approximately 2.2 pounds.
To find out how many kilograms are in 125 pounds, you can use the formula:
\[ \text{kilograms} = \frac{\text{pounds}}{2.2} \]
Substituting 125 pounds into the equation:
\[ \text{kilograms} = \frac{125}{2.2} \approx 56.8181 \]
Now, rounding this to the nearest tenth gives you:
\[ \text{kilograms} \approx 56.8 \]
Therefore, there are approximately 56.8 kilograms in 125 pounds.