#define sensorPin 0 

float Celsius, Fahrenheit, Kelvin; 
int sensorValue; 

void setup() { 
Serial.begin(9600); 
Serial.println("Initialising....."); 
} 

void loop() { 

GetTemp(); 
Serial.print("Celsius: "); 
Serial.println(Celsius); 
Serial.print("Fahrenheit: "); 
Serial.println(Fahrenheit); 
Serial.println(); 

delay(2000); 
} 

void GetTemp() 
{ 
sensorValue = analogRead(sensorPin); // read the sensor 
Kelvin = (((float(sensorValue) / 1023) * 5) * 100); // convert to Kelvin 
Celsius = Kelvin - 273.15; // convert to Celsius 
Fahrenheit = (Celsius * 1.8) +32; // convert to Fahrenheit 
}