Fire Weather Index Calculator

Fire Weather Index Calculator calculator can be used to estimate the fire danger based on environmental conditions.

Input Parameters

Calculation Results

Fire Weather Index (FWI)

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Calculation Formula

FWI = B1 * Temp + B2 * RH + B3 * WS + B4 * Pressure

Where:
Temp = Temperature (°C)
RH = Relative Humidity (%)
WS = Wind Speed (km/h)
Pressure = Atmospheric Pressure (hPa)
B1, B2, B3, B4 = Coefficients for the FWI model

Fire Weather Index Calculator Calculator Usage Guide

Learn how to use the Fire Weather Index Calculator calculator and its working principles

How to Use the Calculator

  1. Enter the temperature in degrees Celsius (°C).
  2. Enter the relative humidity in percentage (%).
  3. Enter the wind speed in kilometers per hour (km/h).
  4. Enter the atmospheric pressure in hectopascals (hPa).
  5. Click the "Calculate" button to compute the Fire Weather Index (FWI).
  6. The result will be displayed along with the calculation formula.

Working Principle

The Fire Weather Index (FWI) is a numerical index that estimates the fire danger based on environmental conditions. The FWI is influenced by factors such as temperature, relative humidity, wind speed, and atmospheric pressure. The calculator uses a simplified version of the FWI model to estimate the fire danger.