diff --git a/homeassistant/components/derivative/config_flow.py b/homeassistant/components/derivative/config_flow.py
index fe6b99c3eca..6249e9fd1cc 100644
--- a/homeassistant/components/derivative/config_flow.py
+++ b/homeassistant/components/derivative/config_flow.py
@@ -37,8 +37,9 @@ UNIT_PREFIXES = [
     {"value": "m", "label": "m (milli)"},
     {"value": "k", "label": "k (kilo)"},
     {"value": "M", "label": "M (mega)"},
-    {"value": "G", "label": "T (tera)"},
-    {"value": "T", "label": "P (peta)"},
+    {"value": "G", "label": "G (giga)"},
+    {"value": "T", "label": "T (tera)"},
+    {"value": "P", "label": "P (peta)"},
 ]
 TIME_UNITS = [
     {"value": TIME_SECONDS, "label": "Seconds"},
diff --git a/homeassistant/components/integration/config_flow.py b/homeassistant/components/integration/config_flow.py
index c220327e983..cd4f8a11fbf 100644
--- a/homeassistant/components/integration/config_flow.py
+++ b/homeassistant/components/integration/config_flow.py
@@ -37,8 +37,9 @@ UNIT_PREFIXES = [
     {"value": "none", "label": "none"},
     {"value": "k", "label": "k (kilo)"},
     {"value": "M", "label": "M (mega)"},
-    {"value": "G", "label": "T (tera)"},
-    {"value": "T", "label": "P (peta)"},
+    {"value": "G", "label": "G (giga)"},
+    {"value": "T", "label": "T (tera)"},
+    {"value": "P", "label": "P (peta)"},
 ]
 TIME_UNITS = [
     {"value": TIME_SECONDS, "label": "s (seconds)"},