Altitude Weight Calculator



The Altitude Weight Calculator is a handy tool to estimate the weight of an object at a specific altitude, considering the effect of reduced gravitational force. It’s particularly useful for applications such as aviation, engineering, or any scenario where knowing an object’s weight at different altitudes is crucial. This article will guide you through using the Altitude Weight Calculator, including the formula and examples to help you better understand its functionality.

How to Use

To use the Altitude Weight Calculator, follow these simple steps:

  1. Enter the weight at sea level (in pounds) in the designated input field.
  2. Enter the total altitude (in feet) at which you want to calculate the altitude weight.
  3. Click the “Calculate Altitude Weight” button.

The calculator will instantly display the altitude weight based on the provided inputs.


The formula used in the Altitude Weight Calculator is as follows:

ALTW = WSL – (A / 10,000) * 0.08


  • ALTW is the altitude weight (in pounds).
  • WSL is the weight at sea level (in pounds).
  • A is the total altitude (in feet).

The formula considers the reduction in weight due to the decrease in gravitational force with increasing altitude.


Let’s go through an example to illustrate how to use the Altitude Weight Calculator:

Suppose we have an object with a weight at sea level of 150 pounds, and we want to calculate its weight at an altitude of 10,000 feet.

  1. Enter 150 as the weight at sea level.
  2. Enter 10000 as the total altitude.
  3. Click the “Calculate Altitude Weight” button.

The calculator will provide the result:

ALTW = 150 – (10000 / 10,000) * 0.08 = 149.92 pounds

So, at an altitude of 10,000 feet, the object’s weight is approximately 149.92 pounds.


Q1: Can I use this calculator to estimate the weight of an object at extremely high altitudes, such as in outer space?

A1: No, this calculator is designed for altitudes within the Earth’s atmosphere. It does not account for conditions in outer space.

Q2: How accurate is the altitude weight estimation using this calculator?

A2: The calculator provides a reasonably accurate estimation for most practical scenarios within the Earth’s atmosphere. However, it does not consider factors like air density variations, which may affect precision in very specific conditions.


The Altitude Weight Calculator is a valuable tool for engineers, aviation professionals, and anyone needing to estimate an object’s weight at various altitudes. By inputting the weight at sea level and the desired altitude, you can quickly determine the altitude weight. Keep in mind that this tool provides a good approximation for common scenarios but may not be suitable for extremely precise calculations.

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