diff --git a/tools.json b/tools.json
index 96bdc6d..b3cfed0 100644
--- a/tools.json
+++ b/tools.json
@@ -1361,6 +1361,12 @@
     "url": "https://catchjs.com/",
     "category": "Monitoring"
   },
+  {
+    "name": "CD Calculator",
+    "description": "Free calculator for comparing certificate of deposit terms, APY, and maturity value across multiple CD lengths, no signup required",
+    "url": "https://nutilz.com/cd-calculator",
+    "category": "Other"
+  },
   {
     "name": "cdnjs.com",
     "description": "CDN for JavaScript libraries, CSS libraries, SWF, images, etc",