diff --git a/resources/switch.php b/resources/switch.php
index 0ede057e4b..bb538d6b5f 100644
--- a/resources/switch.php
+++ b/resources/switch.php
@@ -93,13 +93,15 @@ function event_socket_request_cmd($cmd) {
 	return $response;
 }
 
-function byte_convert($bytes, $decimals = 2) {
-	if ($bytes <= 0) { return '0 Bytes'; }
-	$units = array('B', 'KB', 'MB', 'GB', 'TB'); 
-	$bytes = max($bytes, 0); 
-	$pow = floor(($bytes ? log($bytes) : 0) / log(1024)); 
-	$pow = min($pow, count($units) - 1);
-	return round($bytes, $precision) . ' ' . $units[$pow]; 
+function byte_convert($bytes, $precision = 2) {
+	static $units = array('B','kB','MB','GB','TB','PB','EB','ZB','YB');
+	$step = 1024;
+	$i = 0;
+	while (($bytes / $step) > 0.9) {
+		$bytes = $bytes / $step;
+		$i++;
+	}
+	return round($bytes, $precision).' '.$units[$i];
 }
 
 function remove_config_from_cache($name) {