Weight Weight Calculator – Loan calculator

Celestial Body Weight Calculator

Object Mass (kg):

Select Celestial Body: Earth Moon Mars Jupiter Sun

Understanding Weight Across the Cosmos: A Celestial Body Weight Calculator

Have you ever wondered how much you'd weigh on the Moon, or if you could jump higher on Mars? The concept of "weight" is often confused with "mass," but they are fundamentally different. While your mass—the amount of matter in your body—remains constant no matter where you are in the universe, your weight is a measure of the gravitational force exerted on that mass. This force changes dramatically depending on the celestial body you're on.

Mass vs. Weight: The Key Distinction

Mass (kg): This is an intrinsic property of an object, representing the amount of "stuff" it contains. It's a scalar quantity and is measured in kilograms (kg) in the International System of Units (SI). Your mass is the same on Earth, the Moon, or in deep space.
Weight (Newtons): This is a force, specifically the force of gravity acting on an object's mass. It's a vector quantity (having both magnitude and direction) and is measured in Newtons (N) in the SI system. Weight is directly proportional to both the object's mass and the gravitational acceleration of the celestial body it's on.

The Formula for Weight

The relationship between mass, gravity, and weight is described by a simple yet powerful formula:

Weight (N) = Mass (kg) × Gravitational Acceleration (m/s²)

Where:

Weight is the force measured in Newtons (N).
Mass is the amount of matter, measured in kilograms (kg).
Gravitational Acceleration is the acceleration due to gravity, measured in meters per second squared (m/s²). This value varies significantly from one celestial body to another.

Why Does Gravitational Acceleration Vary?

The gravitational acceleration of a celestial body depends primarily on its mass and its radius. Larger, more massive bodies generally have stronger gravitational pulls, leading to higher gravitational acceleration. However, density and how that mass is distributed also play a role. For instance, Jupiter is far more massive than Earth, resulting in a much higher gravitational acceleration at its "surface" (or cloud tops).

Using the Celestial Body Weight Calculator

Our calculator allows you to input an object's mass (e.g., your own mass in kilograms) and then select various celestial bodies to see how its weight would change. Here are the approximate gravitational accelerations used for common celestial bodies:

Earth: 9.807 m/s²
Moon: 1.62 m/s²
Mars: 3.71 m/s²
Jupiter: 24.79 m/s²
Sun: 274 m/s² (surface gravity)

Examples:

Let's take an example of a person with a mass of 70 kg:

On Earth: Weight = 70 kg × 9.807 m/s² = 686.49 Newtons (approx. 154.3 pounds-force). This is your typical "weight" on Earth.
On the Moon: Weight = 70 kg × 1.62 m/s² = 113.40 Newtons (approx. 25.5 pounds-force). You would feel much lighter, about one-sixth of your Earth weight!
On Mars: Weight = 70 kg × 3.71 m/s² = 259.70 Newtons (approx. 58.4 pounds-force). Still significantly lighter than Earth, but heavier than on the Moon.
On Jupiter: Weight = 70 kg × 24.79 m/s² = 1735.30 Newtons (approx. 390.1 pounds-force). You would feel incredibly heavy, more than twice your Earth weight!
On the Sun: Weight = 70 kg × 274 m/s² = 19180 Newtons (approx. 4312.0 pounds-force). If you could stand on the Sun's "surface," you'd be crushed by the immense gravity.

Use the calculator above to explore your weight on different planets and gain a deeper understanding of the fascinating physics of gravity!