NDVI Calculator

NDVI Calculator calculator can be used to calculate the Normalized Difference Vegetation Index (NDVI) from red and near-infrared (NIR) band reflectance values.

Input Parameters

Calculation Results

Calculation Formula

NDVI = (NIR - Red) / (NIR + Red)

Where:
NIR = Near-Infrared band reflectance
Red = Red band reflectance

NDVI Result

NDVI Calculator Calculator Usage Guide

Learn how to use the NDVI Calculator calculator and its working principles

What is NDVI?

NDVI is a vegetation index used to assess plant health and density. It is calculated by taking the difference between the near-infrared (NIR) and red band reflectance values and dividing by their sum.

How to Use the Calculator

  1. Enter the red band reflectance value in the first input field (percentage).
  2. Enter the near-infrared band reflectance value in the second input field (percentage).
  3. Click the "Calculate" button to compute the NDVI.
  4. The result will be displayed in the NDVI Result field.

Interpreting NDVI Results

NDVI values typically range from -1 to +1:

  • Values close to +1 indicate dense, healthy vegetation.
  • Values close to 0 indicate sparse or no vegetation.
  • Values close to -1 indicate non-vegetated surfaces such as water or bare soil.

Principle of NDVI Calculation

NDVI is calculated using the formula:

NDVI = (NIR - Red) / (NIR + Red)

Where:

  • NIR = Near-Infrared band reflectance
  • Red = Red band reflectance