Use the NEC Projector Throw Calculator to determine the optimal throw distance for your NEC projector based on your screen size and other parameters.

## Throw Distance Calculation Formula

The formula to calculate the throw distance for your projector setup is given below.

Throw Distance = Screen Size * Projection Factor

Variables:

- Throw Distance is the distance from the projector to the screen (feet).
- Screen Size is the diagonal size of the screen (inches).
- Projection Factor is a multiplier based on the projector and aspect ratio.

To determine the throw distance, multiply the screen size by the projection factor specific to your projector model and aspect ratio.

## Understanding Projector Throw Distance

Projector throw distance refers to the distance between the projector and the screen . This distance is crucial to ensure that the projected image fits the screen properly and is clear and focused. The throw distance depends on various factors, including the screen size, aspect ratio, and the specific model of the NEC projector.

## Steps to Calculate Throw Distance

The following steps will help you calculate the throw distance using the provided formula:

- Determine the screen size based on your setup.
- Select the appropriate aspect ratio for your projector.
- Identify the projector model to understand the specific projection factor.
- Use the formula: Throw Distance = Screen Size * Projection Factor.
- Enter the values into the NEC Projector Throw Calculator above to get the throw distance.

**Example Problem:**

Let’s consider an example to calculate the throw distance:

Screen Size = 120 inches

Aspect Ratio = 16:9

Projector Model = NEC P502WL

Projection Factor = 1.2 (example factor for the model and aspect ratio)

Throw Distance = 120 * 1.2 = 144 feet

## FAQ

**1. What is a projector throw distance?**

Projector throw distance is the distance from the projector lens to the screen, which determines how large the image will appear on the screen.

**2. How does the aspect ratio affect the throw distance?**

The aspect ratio determines the width and height proportions of the screen, impacting the calculation of throw distance due to changes in screen dimensions.

**3. Why do different projector models have different projection factors?**

Different projector models have unique lenses and optics, resulting in varying projection factors that influence the throw distance.

**4. How accurate is the NEC Projector Throw Calculator?**

The calculator provides an estimate based on standard projection factors. For precise setup, refer to your projectorâ€™s manual or manufacturer’s guidelines.

**5. Can I use the calculator for non-NEC projectors?**

The calculator is tailored for NEC projectors. For other brands, use their specific calculators or manuals for accurate throw distance calculations.