diff --git a/src/Codebelt.Unitify/BinaryPrefix.cs b/src/Codebelt.Unitify/BinaryPrefix.cs
index 337e31a..18ad6b8 100644
--- a/src/Codebelt.Unitify/BinaryPrefix.cs
+++ b/src/Codebelt.Unitify/BinaryPrefix.cs
@@ -49,14 +49,16 @@ public static double ConvertBytesToBits(double bytes)
         {
             var list = new List<BinaryPrefix>()
             {
-                Exbi,
-                Gibi,
                 Kibi,
                 Mebi,
-                Pebi,
+                Gibi,
                 Tebi,
+                Pebi,
+                Exbi,
+                Zebi,
                 Yobi,
-                Zebi
+                Robi,
+                Quebi
             };
             return list;
         });
@@ -110,9 +112,21 @@ public static double ConvertBytesToBits(double bytes)
         public static BinaryPrefix Yobi => new("yobi", "Yi", 80);
 
         /// <summary>
-        /// Gets the complete sequence of multiples binary prefixes as specified by Institute of Electrical and Electronics Engineers (IEEE).
+        /// Gets the binary-multiple prefix robi (symbol 'Ri'), 2^90 = 1237940039285380274899124224.
+        /// </summary>
+        /// <value>The binary-multiple prefix robi (symbol 'Ri').</value>
+        public static BinaryPrefix Robi => new("robi", "Ri", 90);
+
+        /// <summary>
+        /// Gets the binary-multiple prefix quebi (symbol 'Qi'), 2^100 = 1267650600228229401496703205376.
+        /// </summary>
+        /// <value>The binary-multiple prefix quebi (symbol 'Qi').</value>
+        public static BinaryPrefix Quebi => new("quebi", "Qi", 100);
+
+        /// <summary>
+        /// Gets the complete sequence of multiples binary prefixes as specified by IEC 80000-13:2025, covering kibi (2^10) through quebi (2^100).
         /// </summary>
-        /// <value>The complete sequence of multiples binary prefixes as specified by Institute of Electrical and Electronics Engineers (IEEE).</value>
+        /// <value>The complete sequence of multiples binary prefixes as specified by IEC 80000-13:2025.</value>
         public static IEnumerable<BinaryPrefix> BinaryPrefixes => LazyPrefixes.Value;
 
         /// <summary>
diff --git a/src/Codebelt.Unitify/PrefixTableExtensions.cs b/src/Codebelt.Unitify/PrefixTableExtensions.cs
index c18a771..c2a8e67 100644
--- a/src/Codebelt.Unitify/PrefixTableExtensions.cs
+++ b/src/Codebelt.Unitify/PrefixTableExtensions.cs
@@ -326,5 +326,25 @@ public static IPrefixUnit YobiOrDefault(this PrefixTable prefixes)
         {
             return prefixes.SingleOrDefault(p => p.Prefix.Symbol == BinaryPrefix.Yobi.Symbol);
         }
+
+        /// <summary>
+        /// Returns the unit with the Robi prefix or the default value if not found.
+        /// </summary>
+        /// <param name="prefixes">The table of multiple units.</param>
+        /// <returns>The unit with the Robi prefix or the default value.</returns>
+        public static IPrefixUnit RobiOrDefault(this PrefixTable prefixes)
+        {
+            return prefixes.SingleOrDefault(p => p.Prefix.Symbol == BinaryPrefix.Robi.Symbol);
+        }
+
+        /// <summary>
+        /// Returns the unit with the Quebi prefix or the default value if not found.
+        /// </summary>
+        /// <param name="prefixes">The table of multiple units.</param>
+        /// <returns>The unit with the Quebi prefix or the default value.</returns>
+        public static IPrefixUnit QuebiOrDefault(this PrefixTable prefixes)
+        {
+            return prefixes.SingleOrDefault(p => p.Prefix.Symbol == BinaryPrefix.Quebi.Symbol);
+        }
     }
 }
diff --git a/test/Codebelt.Unitify/BinaryPrefixTest.cs b/test/Codebelt.Unitify/BinaryPrefixTest.cs
index 8b2034e..4b8337e 100644
--- a/test/Codebelt.Unitify/BinaryPrefixTest.cs
+++ b/test/Codebelt.Unitify/BinaryPrefixTest.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Linq;
 using Codebelt.Extensions.Xunit;
 using Xunit;
 
@@ -21,6 +22,25 @@ public void BinaryPrefix_ShouldVerifyMultiplePrefixConstants()
             Assert.Equal(BinaryPrefix.Exbi.Multiplier, Math.Pow(2, 60));
             Assert.Equal(BinaryPrefix.Zebi.Multiplier, Math.Pow(2, 70));
             Assert.Equal(BinaryPrefix.Yobi.Multiplier, Math.Pow(2, 80));
+            Assert.Equal(BinaryPrefix.Robi.Multiplier, Math.Pow(2, 90));
+            Assert.Equal(BinaryPrefix.Quebi.Multiplier, Math.Pow(2, 100));
+        }
+
+        [Fact]
+        public void BinaryPrefix_ShouldContainAllPrefixesInOrder()
+        {
+            var prefixes = BinaryPrefix.BinaryPrefixes.ToList();
+            Assert.Equal(10, prefixes.Count);
+            Assert.Equal("Ki", prefixes[0].Symbol);
+            Assert.Equal("Mi", prefixes[1].Symbol);
+            Assert.Equal("Gi", prefixes[2].Symbol);
+            Assert.Equal("Ti", prefixes[3].Symbol);
+            Assert.Equal("Pi", prefixes[4].Symbol);
+            Assert.Equal("Ei", prefixes[5].Symbol);
+            Assert.Equal("Zi", prefixes[6].Symbol);
+            Assert.Equal("Yi", prefixes[7].Symbol);
+            Assert.Equal("Ri", prefixes[8].Symbol);
+            Assert.Equal("Qi", prefixes[9].Symbol);
         }
     }
 }