diff --git a/src/utils/clampNumber.test.ts b/src/utils/clampNumber.test.ts
new file mode 100644
index 0000000..a64f0dd
--- /dev/null
+++ b/src/utils/clampNumber.test.ts
@@ -0,0 +1,34 @@
+import { describe, it, expect } from 'vitest';
+import { clampNumber } from './clampNumber';
+
+describe('clampNumber', () => {
+  it('returns value if within min and max', () => {
+    expect(clampNumber(5, 1, 10)).toBe(5);
+  });
+
+  it('returns min if value is less than min', () => {
+    expect(clampNumber(-5, 0, 10)).toBe(0);
+  });
+
+  it('returns max if value is greater than max', () => {
+    expect(clampNumber(20, 0, 10)).toBe(10);
+  });
+
+  it('returns min when value equals min', () => {
+    expect(clampNumber(3, 3, 8)).toBe(3);
+  });
+
+  it('returns max when value equals max', () => {
+    expect(clampNumber(8, 3, 8)).toBe(8);
+  });
+
+  it('handles zero boundaries correctly', () => {
+    expect(clampNumber(0, 0, 0)).toBe(0);
+    expect(clampNumber(1, 0, 0)).toBe(0);
+    expect(clampNumber(-1, 0, 0)).toBe(0);
+  });
+
+  it('throws if min > max', () => {
+    expect(() => clampNumber(5, 10, 1)).toThrow('min must be less than or equal to max');
+  });
+});
diff --git a/src/utils/clampNumber.ts b/src/utils/clampNumber.ts
new file mode 100644
index 0000000..01ceb7c
--- /dev/null
+++ b/src/utils/clampNumber.ts
@@ -0,0 +1,15 @@
+/**
+ * Clamps a number between min and max (inclusive).
+ * @param value - The input number to clamp.
+ * @param min - The minimum allowable value.
+ * @param max - The maximum allowable value.
+ * @returns The clamped number.
+ */
+export function clampNumber(value: number, min: number, max: number): number {
+  if (min > max) {
+    throw new Error('min must be less than or equal to max');
+  }
+  if (value < min) return min;
+  if (value > max) return max;
+  return value;
+}