How many kg is 145 pounds?

The correct answer is: $65.77089365\text{ kg}$

Explanation

We use the exact conversion factor $1\text{ lb} = 0.45359237\text{ kg}$.

Steps:

1. Conversion factor: $$1\text{ lb} = 0.45359237\text{ kg}$$
2. Multiply: $$145\text{ lb} \times 0.45359237\frac{\text{kg}}{\text{lb}} = 65.77089365\text{ kg}$$
3. Rounded (typical): $$\approx 65.77\text{ kg (to 2 decimal places)}$$

Therefore, 145 pounds is about $65.77\text{ kg}$ (≈ $65.7709\text{ kg}$ if more precision is needed).