diff --git a/SabreTools/Partials/SabreTools_Helpers.cs b/SabreTools/Partials/SabreTools_Helpers.cs
index 100f668e..13cefc35 100644
--- a/SabreTools/Partials/SabreTools_Helpers.cs
+++ b/SabreTools/Partials/SabreTools_Helpers.cs
@@ -120,6 +120,77 @@ ORDER BY system.manufacturer, system.name";
 			return;
 		}
 
+		/// <summary>
+		/// Get the multiplier to be used with the size given
+		/// </summary>
+		/// <param name="sizestring">String with possible size with extension</param>
+		/// <returns>Tuple of multiplier to use on final size and fixed size string</returns>
+		private static long GetSizeFromString(string sizestring)
+		{
+			long size = 0;
+
+			// Make sure the string is in lower case
+			sizestring = sizestring.ToLowerInvariant();
+
+			// Get any trailing size identifiers
+			long multiplier = 1;
+			if (sizestring.EndsWith("kb"))
+			{
+				multiplier = Constants.KiloByte;
+			}
+			else if (sizestring.EndsWith("kib"))
+			{
+				multiplier = Constants.KibiByte;
+			}
+			else if (sizestring.EndsWith("mb"))
+			{
+				multiplier = Constants.MegaByte;
+			}
+			else if (sizestring.EndsWith("mib"))
+			{
+				multiplier = Constants.MibiByte;
+			}
+			else if (sizestring.EndsWith("gb"))
+			{
+				multiplier = Constants.GigaByte;
+			}
+			else if (sizestring.EndsWith("gib"))
+			{
+				multiplier = Constants.GibiByte;
+			}
+			else if (sizestring.EndsWith("tb"))
+			{
+				multiplier = Constants.TeraByte;
+			}
+			else if (sizestring.EndsWith("tib"))
+			{
+				multiplier = Constants.TibiByte;
+			}
+			else if (sizestring.EndsWith("pb"))
+			{
+				multiplier = Constants.PetaByte;
+			}
+			else if (sizestring.EndsWith("pib"))
+			{
+				multiplier = Constants.PibiByte;
+			}
+
+			// Remove any trailing identifiers
+			sizestring = sizestring.TrimEnd(new char[] { 'k', 'm', 'g', 't', 'p', 'i', 'b' });
+
+			// Now try to get the size from the string
+			if (!Int64.TryParse(sizestring, out size))
+			{
+				size = -1;
+			}
+			else
+			{
+				size *= multiplier;
+			}
+
+			return size;
+		}
+
 		#endregion
 	}
 }
diff --git a/SabreTools/SabreTools.cs b/SabreTools/SabreTools.cs
index 3a1ff751..65f758b9 100644
--- a/SabreTools/SabreTools.cs
+++ b/SabreTools/SabreTools.cs
@@ -519,17 +519,11 @@ namespace SabreTools
 						}
 						else if (temparg.StartsWith("-seq=") || temparg.StartsWith("--equal="))
 						{
-							if (!Int64.TryParse(temparg.Split('=')[1], out seq))
-							{
-								seq = -1;
-							}
+							seq = GetSizeFromString(temparg.Split('=')[1]);
 						}
 						else if (temparg.StartsWith("-sgt=") || temparg.StartsWith("--greater="))
 						{
-							if (!Int64.TryParse(temparg.Split('=')[1], out sgt))
-							{
-								sgt = -1;
-							}
+							sgt = GetSizeFromString(temparg.Split('=')[1]);
 						}
 						else if (temparg.StartsWith("-sha1=") || temparg.StartsWith("--sha1="))
 						{
@@ -537,10 +531,7 @@ namespace SabreTools
 						}
 						else if (temparg.StartsWith("-slt=") || temparg.StartsWith("--less="))
 						{
-							if (!Int64.TryParse(temparg.Split('=')[1], out slt))
-							{
-								slt = -1;
-							}
+							slt = GetSizeFromString(temparg.Split('=')[1]);
 						}
 						else if (temparg.StartsWith("-source=") && sources == "")
 						{