Index: wp-admin/includes/media.php
===================================================================
--- wp-admin/includes/media.php	(revision 25764)
+++ wp-admin/includes/media.php	(working copy)
@@ -1515,7 +1515,7 @@
 	$upload_size_unit = $max_upload_size = wp_max_upload_size();
 	$sizes = array( 'KB', 'MB', 'GB' );
 
-	for ( $u = -1; $upload_size_unit > 1024 && $u < count( $sizes ) - 1; $u++ ) {
+	for ( $u = -1; $upload_size_unit >= 1024 && $u < count( $sizes ) - 1; $u++ ) {
 		$upload_size_unit /= 1024;
 	}
 
Index: wp-includes/media-template.php
===================================================================
--- wp-includes/media-template.php	(revision 25764)
+++ wp-includes/media-template.php	(working copy)
@@ -76,7 +76,7 @@
 				$upload_size_unit = $max_upload_size = wp_max_upload_size();
 				$byte_sizes = array( 'KB', 'MB', 'GB' );
 
-				for ( $u = -1; $upload_size_unit > 1024 && $u < count( $byte_sizes ) - 1; $u++ ) {
+				for ( $u = -1; $upload_size_unit >= 1024 && $u < count( $byte_sizes ) - 1; $u++ ) {
 					$upload_size_unit /= 1024;
 				}