Update app.py

app.py

@@ -1,16 +1,42 @@
 import streamlit as st
 
+# Conversion functions
 def celsius_to_fahrenheit(celsius):
     return (celsius * 9/5) + 32
 
 def fahrenheit_to_celsius(fahrenheit):
     return (fahrenheit - 32) * 5/9
 
+def celsius_to_kelvin(celsius):
+    return celsius + 273.15
+
+def kelvin_to_celsius(kelvin):
+    return kelvin - 273.15
+
+def fahrenheit_to_kelvin(fahrenheit):
+    celsius = fahrenheit_to_celsius(fahrenheit)
+    return celsius_to_kelvin(celsius)
+
+def kelvin_to_fahrenheit(kelvin):
+    celsius = kelvin_to_celsius(kelvin)
+    return celsius_to_fahrenheit(celsius)
+
+# Streamlit app
 st.title("Temperature Conversion App")
-st.write("Convert temperatures between Celsius and Fahrenheit.")
+st.write("Convert temperatures between Celsius, Fahrenheit, and Kelvin.")
 
 # User input
-conversion_type = st.radio("Select conversion type:", ("Celsius to Fahrenheit", "Fahrenheit to Celsius"))
+conversion_type = st.selectbox(
+    "Select conversion type:",
+    (
+        "Celsius to Fahrenheit",
+        "Fahrenheit to Celsius",
+        "Celsius to Kelvin",
+        "Kelvin to Celsius",
+        "Fahrenheit to Kelvin",
+        "Kelvin to Fahrenheit"
+    )
+)
 
 temperature_input = st.number_input("Enter the temperature value:", format="%.2f")
 
@@ -18,6 +44,18 @@ temperature_input = st.number_input("Enter the temperature value:", format="%.2f
 if conversion_type == "Celsius to Fahrenheit":
     converted_temp = celsius_to_fahrenheit(temperature_input)
     st.write(f"{temperature_input}°C is equal to {converted_temp:.2f}°F.")
-else:
+elif conversion_type == "Fahrenheit to Celsius":
     converted_temp = fahrenheit_to_celsius(temperature_input)
     st.write(f"{temperature_input}°F is equal to {converted_temp:.2f}°C.")
+elif conversion_type == "Celsius to Kelvin":
+    converted_temp = celsius_to_kelvin(temperature_input)
+    st.write(f"{temperature_input}°C is equal to {converted_temp:.2f}K.")
+elif conversion_type == "Kelvin to Celsius":
+    converted_temp = kelvin_to_celsius(temperature_input)
+    st.write(f"{temperature_input}K is equal to {converted_temp:.2f}°C.")
+elif conversion_type == "Fahrenheit to Kelvin":
+    converted_temp = fahrenheit_to_kelvin(temperature_input)
+    st.write(f"{temperature_input}°F is equal to {converted_temp:.2f}K.")
+elif conversion_type == "Kelvin to Fahrenheit":
+    converted_temp = kelvin_to_fahrenheit(temperature_input)
+    st.write(f"{temperature_input}K is equal to {converted_temp:.2f}°F.")