Enter the change in velocity expended (m/s) and the expected theoretical change in velocity (m/s) into the Calculator. The calculator will evaluate the Gravity Loss.

## Gravity Loss Formula

GL = dVe - dVt

Variables:

- GL is the Gravity Loss (m/s)
- dVe is the change in velocity expended (m/s)
- dVt is the expected theoretical change in velocity (m/s)

To calculate Gravity Loss, subtract the expected theoretical change in velocity from the actual change in velocity expended.

## How to Calculate Gravity Loss?

The following steps outline how to calculate the Gravity Loss.

- First, determine the change in velocity expended (m/s).
- Next, determine the expected theoretical change in velocity (m/s).
- Next, gather the formula from above = GL = dVe – dVt.
- Finally, calculate the Gravity Loss.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

change in velocity expended (m/s) = 4500

expected theoretical change in velocity (m/s) = 300

## FAQs

**What is Gravity Loss in rocket science?**

Gravity Loss refers to the difference between the actual change in velocity a rocket achieves and the theoretical change in velocity it was expected to achieve, without considering the gravitational pull during its ascent. This loss is crucial in calculating the efficiency of a rocket’s trajectory.

**Why is calculating Gravity Loss important?**

Calculating Gravity Loss is important for optimizing a rocket’s trajectory, ensuring fuel efficiency, and achieving the desired orbit or destination. It helps in understanding how much additional velocity (and thus fuel) is needed to overcome Earth’s gravity during launch.

**How can Gravity Loss be minimized?**

Gravity Loss can be minimized by optimizing the launch trajectory, increasing the rocket’s thrust, and minimizing the time spent in the lower atmosphere where Earth’s gravity has the most effect. Advanced planning and simulation using tools like the Gravity to Velocity Calculator can aid in this optimization.