Pound [lb or lbs]
The pound is a unit of mass commonly used in the imperial and U.S. customary systems.
1 pound = 0.45359237 kilograms (exact, by definition)
Symbol: lb (from Latin libra)
Widely used in the United States and a few other countries for body weight, food, and general mass measurements.
There are 16 ounces (oz) in 1 pound.
Key Facts:
1 lb = 16 oz
1 lb ≈ 0.454 kg
Common in everyday U.S. and UK usage
Not an SI unit, but legally defined for trade and commerce
While the pound is not part of the metric system, it remains a familiar unit in daily life for many people, especially in the U.S. and UK.
The mass of the Earth is approximately 5.972 × 10²⁴ kilograms.
This massive value represents the total amount of matter contained in our planet, influencing gravity, orbital dynamics, and geological processes.
Summary:
Mass ≈ 5.972 × 10²⁴ kg
Determines Earth’s gravitational pull
Fundamental for planetary science and astronomy