NDVI Calculator


In the realm of agricultural and environmental sciences, understanding vegetation health and dynamics is paramount. One tool that aids in this understanding is the Normalized Difference Vegetation Index (NDVI) calculator. This article introduces the NDVI calculator, guiding you through its usage, formula, an example solve, FAQs, and conclusion.

How to Use

To utilize the NDVI calculator effectively, follow these simple steps:

  1. Enter the values for Near Infrared (NIR) and Red bands.
  2. Click the “Calculate” button to obtain the NDVI value.


The NDVI formula is as follows:

Example Solve

Suppose we have NIR value as 0.8 and Red value as 0.4.


Q: What is NIR and Red in NDVI calculation?
A: NIR (Near Infrared) and Red are bands of electromagnetic radiation typically captured by remote sensing devices. NIR represents the near-infrared light, while Red represents red light.

Q: What does the NDVI value signify?
A: NDVI values range from -1 to 1. A value closer to 1 indicates healthy vegetation, while values closer to -1 represent non-vegetated surfaces such as water or barren land.

Q: Can NDVI be negative?
A: Yes, NDVI can be negative, indicating non-vegetated surfaces with low reflectance in NIR compared to Red.

Q: How accurate is the NDVI calculator?
A: The NDVI calculator uses the precise formula for calculation, providing accurate results based on input values.


The NDVI calculator is a valuable tool for assessing vegetation health and dynamics. By inputting NIR and Red values, users can obtain the NDVI value, aiding in agricultural management, environmental monitoring, and more.

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