diff --git a/css/types/calc.json b/css/types/calc.json
index bb5d804129cb65..3a76ac67b6905f 100644
--- a/css/types/calc.json
+++ b/css/types/calc.json
@@ -222,6 +222,39 @@
               "deprecated": false
             }
           }
+        },
+        "typed_division_produces_unitless_number": {
+          "__compat": {
+            "description": "Divisions between typed values produce unitless number (\"typed arithmetic\")",
+            "spec_url": "https://www.w3.org/TR/css-values-4/#calc-type-checking",
+            "support": {
+              "chrome": {
+                "version_added": "140"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false,
+                "impl_url": "https://bugzil.la/1264520"
+              },
+              "firefox_android": "mirror",
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "26"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       }
     }
diff --git a/css/types/sign.json b/css/types/sign.json
index 499695aaa5e1a2..d39b7e3ee5c64a 100644
--- a/css/types/sign.json
+++ b/css/types/sign.json
@@ -37,6 +37,41 @@
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "typed_division_produces_unitless_number": {
+          "__compat": {
+            "description": "Divisions between typed values produce unitless number (\"typed arithmetic\")",
+            "spec_url": "https://www.w3.org/TR/css-values-4/#calc-type-checking",
+            "support": {
+              "chrome": {
+                "version_added": "140"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false,
+                "impl_url": "https://bugzil.la/1264520"
+              },
+              "firefox_android": "mirror",
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "26"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": {
+                "version_added": false
+              }
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       }
     }