diff --git a/core/code/portal_info.js b/core/code/portal_info.js
index 93cba5be3..727f22ae5 100644
--- a/core/code/portal_info.js
+++ b/core/code/portal_info.js
@@ -38,6 +38,13 @@ window.getCurrentPortalEnergy = function(d) {
   return nrg;
 }
 
+window.getPortalHealth = function(d) {
+  var max = getTotalPortalEnergy(d);
+  var cur = getCurrentPortalEnergy(d);
+
+  return max>0 ? Math.floor(cur/max*100) : 0;
+}
+
 window.getPortalRange = function(d) {
   // formula by the great gals and guys at
   // http://decodeingress.me/2012/11/18/ingress-portal-levels-and-link-range/