diff --git a/plist-cil.test/UIDTests.cs b/plist-cil.test/UIDTests.cs
index 69a016a..1c93430 100644
--- a/plist-cil.test/UIDTests.cs
+++ b/plist-cil.test/UIDTests.cs
@@ -36,6 +36,7 @@ namespace plistcil.test
         {
             UID uid = new UID(0xAB);
             Assert.Equal(new byte[] {0xAB}, uid.Bytes);
+            Assert.Equal(0xABu, uid.ToUInt64());
         }
 
         [Fact]
@@ -43,6 +44,7 @@ namespace plistcil.test
         {
             UID uid = new UID(0xABCDEF00);
             Assert.Equal(new byte[] {0xAB, 0xCD, 0xEF, 0x00}, uid.Bytes);
+            Assert.Equal(0xABCDEF00, uid.ToUInt64());
         }
 
         [Fact]
@@ -50,6 +52,7 @@ namespace plistcil.test
         {
             UID uid = new UID(0xABCDEF0000EFCDAB);
             Assert.Equal(new byte[] {0xAB, 0xCD, 0xEF, 0x00, 0x00, 0xEF, 0xCD, 0xAB}, uid.Bytes);
+            Assert.Equal(0xABCDEF0000EFCDAB, uid.ToUInt64());
         }
 
         [Fact]
@@ -57,6 +60,7 @@ namespace plistcil.test
         {
             UID uid = new UID(0xABCDEF00u);
             Assert.Equal(new byte[] {0xAB, 0xCD, 0xEF, 0x00}, uid.Bytes);
+            Assert.Equal(0xABCDEF00u, uid.ToUInt64());
         }
 
         [Fact]
@@ -64,6 +68,7 @@ namespace plistcil.test
         {
             UID uid = new UID(0xABCDEF0000EFCDABu);
             Assert.Equal(new byte[] {0xAB, 0xCD, 0xEF, 0x00, 0x00, 0xEF, 0xCD, 0xAB}, uid.Bytes);
+            Assert.Equal(0xABCDEF0000EFCDABu, uid.ToUInt64());
         }
 
         [Fact]
@@ -71,6 +76,7 @@ namespace plistcil.test
         {
             UID uid = new UID(0xABCDu);
             Assert.Equal(new byte[] {0xAB, 0xCD}, uid.Bytes);
+            Assert.Equal(0xABCDu, uid.ToUInt64());
         }
 
         [Fact]
diff --git a/plist-cil/UID.cs b/plist-cil/UID.cs
index a8fac19..5405e1f 100644
--- a/plist-cil/UID.cs
+++ b/plist-cil/UID.cs
@@ -224,5 +224,16 @@ namespace Claunia.PropertyList
         {
             return $"{value} (UID)";
         }
+
+        /// <summary>
+        /// Gets a <see cref="ulong"/> which represents this <see cref="UID"/>.
+        /// </summary>
+        /// <returns>
+        /// A <see cref="ulong"/> which represents this <see cref="UID"/>.
+        /// </returns>
+        public ulong ToUInt64()
+        {
+            return this.value;
+        }
     }
 }
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