diff --git a/src/usr/local/www/includes/functions.inc.php b/src/usr/local/www/includes/functions.inc.php
index b728c7b3824..6433c9835ec 100644
--- a/src/usr/local/www/includes/functions.inc.php
+++ b/src/usr/local/www/includes/functions.inc.php
@@ -37,12 +37,7 @@ function get_stats($sitems = array()) {
 	$stats['datetime'] = (!in_array('current_datetime', $sitems)) ? update_date_time() : '';
 	$stats['cpufreq'] = (!in_array('cpu_type', $sitems)) ? get_cpufreq() : '';
 	$stats['load_average'] = (!in_array('load_average', $sitems)) ? get_load_average() : '';
-	if (!in_array('mbuf_usage', $sitems)) {
-		get_mbuf($stats['mbuf'], $stats['mbufpercent']);
-	} else {
-		$stats['mbuf'] = '';
-		$stats['mbufpercent'] = '';
-	}
+	$stats['mbuf_usage'] = (!in_array('mbuf_usage', $sitems)) ? get_mbuf() : '';
 	$stats['statepercent'] = (!in_array('state_table_size', $sitems)) ? get_pfstate(true) : '';
 	$stats = join("|", $stats);
 	return $stats;
@@ -127,11 +122,11 @@ function get_hwtype() {
 	return;
 }
 
-function get_mbuf(&$mbuf, &$mbufpercent) {
-	$mbufs_output=trim(`/usr/bin/netstat -mb | /usr/bin/grep "mbuf clusters in use" | /usr/bin/awk '{ print $1 }'`);
-	list($mbufs_current, $mbufs_cache, $mbufs_total, $mbufs_max) = explode("/", $mbufs_output);
-	$mbuf = "{$mbufs_total}/{$mbufs_max}";
-	$mbufpercent = ($mbufs_max > 0) ? round(($mbufs_total / $mbufs_max) * 100, 0) : "NA";
+function get_mbuf() {
+	$mbufs_output=trim(`/usr/bin/vmstat -z --libxo=json | /usr/local/bin/jq -r '."memory-zone-statistics".zone.[] | select(.name=="mbuf_cluster") | "\(.limit) \(.used) \(.free)"'`);
+	list($mbufs_max, $mbufs_used, $mbufs_free) = explode(" ", $mbufs_output);
+	$mbufs_total = (int) $mbufs_used + (int) $mbufs_free;
+	return $mbufs_total . "/" . $mbufs_max;
 }
 
 function get_temp() {
diff --git a/src/usr/local/www/widgets/widgets/system_information.widget.php b/src/usr/local/www/widgets/widgets/system_information.widget.php
index dd33d4dcd47..3341b00c874 100644
--- a/src/usr/local/www/widgets/widgets/system_information.widget.php
+++ b/src/usr/local/www/widgets/widgets/system_information.widget.php
@@ -438,7 +438,7 @@
 			<th><?=gettext("MBUF Usage");?></th>
 			<td>
 				<?php
-					get_mbuf($mbufstext, $mbufusage);
+					get_mbuf();
 				?>
 				<div class="progress">
 					<div id="mbufPB" class="progress-bar progress-bar-striped" role="progressbar" aria-valuenow="<?=$mbufusage?>" aria-valuemin="0" aria-valuemax="100" style="width: <?=$mbufusage?>%">
@@ -631,8 +631,7 @@ function stats(x) {
 	updateCpuFreq(values[7]);
 	updateLoadAverage(values[8]);
 	updateMbuf(values[9]);
-	updateMbufMeter(values[10]);
-	updateStateMeter(values[11]);
+	updateStateMeter(values[10]);
 }
 
 function updateMemory(x) {
@@ -645,17 +644,18 @@ function updateMemory(x) {
 }
 
 function updateMbuf(x) {
+	mbufsTotal = x.split('/')[0];
+	mbufsMax= x.split('/')[1];
+	mbufsPercent = Math.floor((mbufsTotal / mbufsMax) * 100);
+
 	if ($('#mbuf')) {
 		$('[id="mbuf"]').html('(' + x + ')');
 	}
-}
-
-function updateMbufMeter(x) {
 	if ($('#mbufusagemeter')) {
-		$('[id="mbufusagemeter"]').html(x + '%');
+		$('[id="mbufusagemeter"]').html(mbufsPercent + '%');
 	}
 	if ($('#mbufPB')) {
-		setProgress('mbufPB', parseInt(x));
+		setProgress('mbufPB', mbufsPercent);
 	}
 }