diff --git a/app/_layout.tsx b/app/_layout.tsx
index 46eac57..0a4c50a 100644
--- a/app/_layout.tsx
+++ b/app/_layout.tsx
@@ -4,7 +4,7 @@ export default function RootLayout() {
   return (
     <Stack>
       <Stack.Screen name="index" options={{ headerShown: false }} />
-      <Stack.Screen name="coordinate-converter" options={{ headerShown: false }} />
+      <Stack.Screen name="nether-portal-calculator" options={{ headerShown: false }} />
     </Stack>
   );
 }
diff --git a/app/index.tsx b/app/index.tsx
index e469a02..954f052 100644
--- a/app/index.tsx
+++ b/app/index.tsx
@@ -22,13 +22,13 @@ export default function Index() {
       <Text style={styles.mainTitle}>Minecraft Tools</Text>
 
       <View style={styles.gridContainer}>
-        {/* Coordinate Converter */}
+        {/* Nether Portal Calculator */}
         <View style={styles.gridItem}>
-          <Link href="/coordinate-converter" asChild style={styles.touchableWrapper}>
+          <Link href="/nether-portal-calculator" asChild style={styles.touchableWrapper}>
             <TouchableOpacity style={styles.touchableWrapper}>
               <ImageBackground source={netherImage} style={styles.imageBackground} resizeMode="cover">
                 <View style={styles.overlay}>
-                  <Text style={styles.linkButtonText}>Coordinate Converter (Nether / Overworld)</Text>
+                  <Text style={styles.linkButtonText}>Nether Portal Calculator</Text>
                 </View>
               </ImageBackground>
             </TouchableOpacity>
diff --git a/app/coordinate-converter.tsx b/app/nether-portal-calculator.tsx
similarity index 98%
rename from app/coordinate-converter.tsx
rename to app/nether-portal-calculator.tsx
index 732f0b8..3b45753 100644
--- a/app/coordinate-converter.tsx
+++ b/app/nether-portal-calculator.tsx
@@ -124,7 +124,7 @@ export default function CoordinateConverter() {
               <Text style={styles.backButtonText}>← Go Back</Text>
             </TouchableOpacity>
 
-            <Text style={styles.converterTitle}>Coordinate Converter</Text>
+            <Text style={styles.converterTitle}>Nether Portal Calculator</Text>
 
             {/* Overworld Row */}
             <View style={styles.dimensionContainer}>
diff --git a/app/styles.ts b/app/styles.ts
index 1f83ed9..0d104c6 100644
--- a/app/styles.ts
+++ b/app/styles.ts
@@ -2,7 +2,7 @@
 import { StyleSheet } from "react-native";
 
 export const styles = StyleSheet.create({
-  // --- Global / Reusable Styles (or main index page specific) ---
+  // --- Global / Reusable Styles ---
   appContainer: {
     flex: 1,
     backgroundColor: "#2e2e2e",
@@ -54,7 +54,7 @@ export const styles = StyleSheet.create({
     fontFamily: "Minecraft",
   },
   
-  // --- Coordinate Converter Specific Styles ---
+  // --- Nether Portal Calculator ---
   converterScreenRoot: {
     flex: 1,
     backgroundColor: "#000",