diff --git a/kibom/component.py b/kibom/component.py
index bbef31f..673315e 100644
--- a/kibom/component.py
+++ b/kibom/component.py
@@ -201,6 +201,22 @@ def setValue(self, value):
     def getValue(self):
         return self.element.get("value")
 
+    # Try to better sort R, L and C components
+    def getValueSort(self):
+        pref = self.getPrefix()
+        if pref in 'RLC' or pref == 'RV':
+            res = units.compMatch(self.getValue())
+            if res:
+                value, mult, unit = res
+                if pref in "CL":
+                    # fempto Farads
+                    value = "{0:15d}".format(int(value * 1e15 * mult + 0.1))
+                else:
+                    # milli Ohms
+                    value = "{0:15d}".format(int(value * 1000 * mult + 0.1))
+                return value
+        return self.element.get("value")
+
     def getField(self, name, ignoreCase=True, libraryToo=True):
         """Return the value of a field named name. The component is first
         checked for the field, and then the components library part is checked
diff --git a/kibom/netlist_reader.py b/kibom/netlist_reader.py
index 7fe15d3..328c278 100644
--- a/kibom/netlist_reader.py
+++ b/kibom/netlist_reader.py
@@ -358,7 +358,7 @@ def groupComponents(self, components):
 
         # Sort the groups
         # First priority is the Type of component (e.g. R?, U?, L?)
-        groups = sorted(groups, key=lambda g: [g.components[0].getPrefix(), g.components[0].getValue()])
+        groups = sorted(groups, key=lambda g: [g.components[0].getPrefix(), g.components[0].getValueSort()])
 
         return groups
 
diff --git a/kibom/units.py b/kibom/units.py
index 19dc243..f8b598e 100644
--- a/kibom/units.py
+++ b/kibom/units.py
@@ -139,9 +139,7 @@ def compMatch(component):
     except:
         return None
 
-    val = "{0:.15f}".format(val * 1.0 * getPrefix(prefix))
-
-    return (val, getUnit(units))
+    return (val, getPrefix(prefix), getUnit(units))
 
 
 def componentValue(valString):
@@ -168,8 +166,11 @@ def compareValues(c1, c2):
     if not r1 or not r2:
         return False
 
-    (v1, u1) = r1
-    (v2, u2) = r2
+    (v1, p1, u1) = r1
+    (v2, p2, u2) = r2
+
+    v1 = "{0:.15f}".format(v1 * 1.0 * p1)
+    v2 = "{0:.15f}".format(v2 * 1.0 * p2)
 
     if v1 == v2:
         # Values match