diff --git a/changelog.md b/changelog.md
index d52afab5d..b9a77466b 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## Unreleased
+
+### Fixed
+
+- Microgram scale is now correctly 1/1000g and inverse meter now 1/100 inverse cm.
+
 ## v0.10.0
 
 ### Added
diff --git a/edsnlp/pipes/misc/measurements/patterns.py b/edsnlp/pipes/misc/measurements/patterns.py
index 0d565a156..63bbb64d8 100644
--- a/edsnlp/pipes/misc/measurements/patterns.py
+++ b/edsnlp/pipes/misc/measurements/patterns.py
@@ -86,7 +86,7 @@
     "µg": {
         "dim": "mass",
         "degree": 1,
-        "scale": 1e-1,
+        "scale": 1e-3,
         "terms": [
             "microgramme",
             "microgrammes",
@@ -386,7 +386,7 @@
     "per_m": {
         "dim": "length",
         "degree": -1,
-        "scale": 1e-3,
+        "scale": 1e-2,
         "terms": ["m-1"],
         "followed_by": None,
     },