# Unit of Gravitational Constant Explained

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In summary, the unit of gravitational constant, m3/kg.s2, is a representation of its dimensionality and is necessary for correctly using its numerical value in equations and comparisons with similar quantities.
TL;DR Summary
What does the unit of a constant mean?
We say the unit of gravitational costant is m3/kg.s2, but what does it mean? I mean, I think we define units when we need to measure a quantity and thereby compare it with other same kind of quantities. So what does it mean to define a unit for a constant, when it doesn't change?

We say the unit of gravitational costant is m3/kg.s2, but what does it mean?
You can use different units, but then the numerical value of the constant also changes. You need to know the units, in order to use the numerical value correctly.

The dimensionality of a constant is chosen based on the equation for which the constant is defined.

## What is the unit of gravitational constant?

The unit of gravitational constant is Newtons per square meter per kilogram squared (N·m^2/kg^2).

## Why is gravitational constant important?

Gravitational constant is important because it is a fundamental constant in physics that helps us understand the force of gravity between two objects.

## How is gravitational constant calculated?

Gravitational constant is calculated by measuring the force of gravity between two objects and their masses, and then using the formula G = F·r^2/m1m2, where G is the gravitational constant, F is the force of gravity, r is the distance between the two objects, and m1 and m2 are the masses of the objects.

## What is the value of gravitational constant?

The value of gravitational constant is approximately 6.674 × 10^-11 N·m^2/kg^2.

## How does gravitational constant affect everyday life?

Gravitational constant affects everyday life by determining the strength of gravity between objects, which is essential for understanding the motion of planets, stars, and other celestial bodies, as well as for practical applications such as space travel and satellite communications.

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