Weight on Other Planets Calculator
Explore how gravity changes your weight across the solar system.
Physics Formula
The calculation is based on the relationship between weight and mass: $W_p = m \cdot g_p$.
Using your weight on Earth ($W_e$), the formula simplifies to:
$$W_p = W_e \cdot \frac{g_p}{g_e}$$
Where $g_e$ (Earth’s gravity) is $9.81 \, \text{m/s}^2$.
Description
This tool calculates the weight of an object or person on various celestial bodies across our solar system. Weight is a measure of the force of gravity on an object’s mass, and since the gravitational acceleration ($g$) varies significantly from one planet to another, so does weight.
Understanding the difference between mass (a constant measure of matter) and weight (a force dependent on gravity) is fundamental in physics and space science. This calculator uses the known gravitational acceleration ($g_p$) of each body relative to Earth’s $g_e$ ($9.81 \, \text{m/s}^2$) to determine the equivalent weight. It is an essential concept for mission planning, rocket science, and astronomy studies.
How to Use
- Enter Earth Weight: In the first input box, enter the weight of the object (or yourself) on Earth in Newtons ($W_e$). (For reference, an object with a mass of $70 \, \text{kg}$ weighs approximately $686.7 \, \text{N}$ on Earth).
- Select Celestial Body: Use the buttons below the ‘Select a Planet or Moon’ heading to choose the celestial body you are interested in (e.g., Mars, Jupiter, or the Moon).
- Calculate: Click the bold “Calculate Weight” button.
- View Results: The tool will instantly display the step-by-step substitution of values into the formula and the final calculated weight on the selected body ($W_p$) in Newtons.
