diff --git a/NzbDrone.Core.Test/IndexerTests/BasicRssParserFixture.cs b/NzbDrone.Core.Test/IndexerTests/BasicRssParserFixture.cs
index 1c9db1b22..4ac080e2a 100644
--- a/NzbDrone.Core.Test/IndexerTests/BasicRssParserFixture.cs
+++ b/NzbDrone.Core.Test/IndexerTests/BasicRssParserFixture.cs
@@ -26,7 +26,7 @@ namespace NzbDrone.Core.Test.IndexerTests
         [TestCase("7,162.1MB", 7510006170)]
         [TestCase("162.1MB", 169974170)]
         [TestCase("398.62 MB", 417983365)]
-        [TestCase("845 MB", 1073741824)]
+        [TestCase("845 MB", 886046720)]
         public void parse_size(string sizeString, long expectedSize)
         {
             var result = BasicRssParser.GetReportSize(sizeString);
diff --git a/NzbDrone.Core/Fluent.cs b/NzbDrone.Core/Fluent.cs
index 07ada240b..fde05a8f5 100644
--- a/NzbDrone.Core/Fluent.cs
+++ b/NzbDrone.Core/Fluent.cs
@@ -26,12 +26,12 @@ namespace NzbDrone.Core
 
         public static Int64 Megabytes(this int megabytes)
         {
-            return megabytes * 1048576L;
+            return Convert.ToInt64(megabytes * 1024L *1024L);
         }
 
         public static Int64 Gigabytes(this int gigabytes)
         {
-            return gigabytes * 1073741824L;
+            return Convert.ToInt64(gigabytes * 1024L * 1024L * 1024L);
         }
 
         public static string ToBestDateString(this DateTime dateTime)
diff --git a/NzbDrone.Core/Indexers/BasicRssParser.cs b/NzbDrone.Core/Indexers/BasicRssParser.cs
index e9dc56bb8..1b18c7a25 100644
--- a/NzbDrone.Core/Indexers/BasicRssParser.cs
+++ b/NzbDrone.Core/Indexers/BasicRssParser.cs
@@ -133,7 +133,7 @@ namespace NzbDrone.Core.Indexers
             return header;
         }
 
-        private static readonly Regex ReportSizeRegex = new Regex(@"(?<value>\d+\.\d{1,2}|\d+)\W?(?<unit>GB|MB|GiB|MiB)",
+        private static readonly Regex ReportSizeRegex = new Regex(@"(?<value>\d+\.\d{1,2}|\d+\,\d+\.\d{1,2}|\d+)\W?(?<unit>GB|MB|GiB|MiB)",
                                                                   RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
 
@@ -151,16 +151,24 @@ namespace NzbDrone.Core.Indexers
                 if (unit.Equals("MB", StringComparison.InvariantCultureIgnoreCase) ||
                     unit.Equals("MiB", StringComparison.InvariantCultureIgnoreCase))
                 {
-                    return Convert.ToInt32(value).Megabytes();
+                    return ConvertToBytes(Convert.ToDouble(value), 2);
                 }
 
             if (unit.Equals("GB", StringComparison.InvariantCultureIgnoreCase) ||
                     unit.Equals("GiB", StringComparison.InvariantCultureIgnoreCase))
                 {
-                    return Convert.ToInt32(value).Gigabytes();
+                    return ConvertToBytes(Convert.ToDouble(value), 3);
                 }
             }
             return 0;
         }
+
+        private static long ConvertToBytes(double value, int power)
+        {
+            var multiplier = Math.Pow(1024, power);
+            var result = value*multiplier;
+
+            return Convert.ToInt64(result);
+        }
     }
 }
\ No newline at end of file