diff --git a/README.md b/README.md
index 8dd6b9f..fbd3f81 100644
--- a/README.md
+++ b/README.md
@@ -51,8 +51,9 @@ cargo install dioxus-cli
 ## Project Structure
 
 - `src/main.rs`: Entry point.
-- `src/ui.rs`: Main calculator component and logic.
+- `src/ui.rs`: Main calculator UI and logic calls.
 - `assets/main.css`: Styling and themes.
+- `src/logic.rs`: Calculator logic.
 
 ## License
 
diff --git a/src/logic.rs b/src/logic.rs
new file mode 100644
index 0000000..c898d9e
--- /dev/null
+++ b/src/logic.rs
@@ -0,0 +1,85 @@
+use dioxus::prelude::*;
+
+/// Helper function to add a digit to the current number
+pub fn input_digit(
+    mut first_num: Signal<String>,
+    mut second_num: Signal<String>,
+    operator: Signal<String>,
+    digit: &str,
+) {
+    if operator().is_empty() {
+        first_num.write().push_str(digit);
+    } else {
+        second_num.write().push_str(digit);
+    }
+}
+
+/// Helper logic for operators
+pub fn handle_operator(
+    first_num: Signal<String>,
+    second_num: Signal<String>,
+    mut operator: Signal<String>,
+    op: &str,
+) {
+    if !first_num().is_empty() && second_num().is_empty() {
+        operator.set(op.to_string());
+    } else if !second_num().is_empty() {
+        // If we already have two numbers, calculate first, then set new operator
+        calculate_result(first_num, second_num, operator);
+        operator.set(op.to_string());
+    }
+}
+
+/// Performs the calculation based on current state
+pub fn calculate_result(
+    mut first_num: Signal<String>,
+    mut second_num: Signal<String>,
+    mut operator: Signal<String>,
+) {
+    // Parse numbers
+    let num1_str = first_num();
+    let num2_str = second_num();
+    let op = operator();
+
+    // If we don't have a second number, we can't calculate
+    if num2_str.is_empty() {
+        return;
+    }
+
+    // Try to parse strings to floats
+    let n1 = match num1_str.parse::<f64>() {
+        Ok(n) => n,
+        Err(_) => return, // Invalid number
+    };
+
+    let n2 = match num2_str.parse::<f64>() {
+        Ok(n) => n,
+        Err(_) => return, // Invalid number
+    };
+
+    // Calculate result
+    let result = match op.as_str() {
+        "+" => (n1 + n2).to_string(),
+        "-" => (n1 - n2).to_string(),
+        "*" => (n1 * n2).to_string(),
+        "/" => {
+            if n2 == 0.0 {
+                "Error".to_string()
+            } else {
+                (n1 / n2).to_string()
+            }
+        }
+        _ => return, // Unknown operator
+    };
+
+    // Update state with result
+    if result == "Error" {
+        first_num.set(String::new());
+    } else {
+        first_num.set(result);
+    }
+
+    // Reset others
+    second_num.set(String::new());
+    operator.set(String::new());
+}
diff --git a/src/main.rs b/src/main.rs
index 2be9323..a39020e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,4 +1,5 @@
 use dioxus::prelude::*;
+mod logic;
 mod ui;
 
 const MAIN_CSS: Asset = asset!("/assets/main.css");
diff --git a/src/ui.rs b/src/ui.rs
index 002e076..eb067a3 100644
--- a/src/ui.rs
+++ b/src/ui.rs
@@ -1,3 +1,4 @@
+use crate::logic::{calculate_result, handle_operator, input_digit};
 use dioxus::prelude::*;
 
 /// The main calculator component.
@@ -133,87 +134,3 @@ pub fn Calculator() -> Element {
         }
     }
 }
-
-/// Helper function to add a digit to the current number
-fn input_digit(
-    mut first_num: Signal<String>,
-    mut second_num: Signal<String>,
-    operator: Signal<String>,
-    digit: &str,
-) {
-    if operator().is_empty() {
-        first_num.write().push_str(digit);
-    } else {
-        second_num.write().push_str(digit);
-    }
-}
-
-/// Helper logic for operators
-fn handle_operator(
-    first_num: Signal<String>,
-    second_num: Signal<String>,
-    mut operator: Signal<String>,
-    op: &str,
-) {
-    if !first_num().is_empty() && second_num().is_empty() {
-        operator.set(op.to_string());
-    } else if !second_num().is_empty() {
-        // If we already have two numbers, calculate first, then set new operator
-        calculate_result(first_num, second_num, operator);
-        operator.set(op.to_string());
-    }
-}
-
-/// Performs the calculation based on current state
-fn calculate_result(
-    mut first_num: Signal<String>,
-    mut second_num: Signal<String>,
-    mut operator: Signal<String>,
-) {
-    // Parse numbers
-    let num1_str = first_num();
-    let num2_str = second_num();
-    let op = operator();
-
-    // If we don't have a second number, we can't calculate
-    if num2_str.is_empty() {
-        return;
-    }
-
-    // Try to parse strings to floats
-    let n1 = match num1_str.parse::<f64>() {
-        Ok(n) => n,
-        Err(_) => return, // Invalid number
-    };
-
-    let n2 = match num2_str.parse::<f64>() {
-        Ok(n) => n,
-        Err(_) => return, // Invalid number
-    };
-
-    // Calculate result
-    let result = match op.as_str() {
-        "+" => (n1 + n2).to_string(),
-        "-" => (n1 - n2).to_string(),
-        "*" => (n1 * n2).to_string(),
-        "/" => {
-            if n2 == 0.0 {
-                "Error".to_string()
-            } else {
-                (n1 / n2).to_string()
-            }
-        }
-        _ => return, // Unknown operator
-    };
-
-    // Update state with result
-    if result == "Error" {
-        first_num.set(String::new());
-    } else {
-        first_num.set(result);
-    }
-
-    // Reset others
-    second_num.set(String::new());
-    operator.set(String::new());
-}