diff --git a/exporters/prometheus/src/main/java/io/opentelemetry/exporter/prometheus/PrometheusUnitsHelper.java b/exporters/prometheus/src/main/java/io/opentelemetry/exporter/prometheus/PrometheusUnitsHelper.java
index 2ac0ed5665c..6517a86fc18 100644
--- a/exporters/prometheus/src/main/java/io/opentelemetry/exporter/prometheus/PrometheusUnitsHelper.java
+++ b/exporters/prometheus/src/main/java/io/opentelemetry/exporter/prometheus/PrometheusUnitsHelper.java
@@ -38,7 +38,9 @@ class PrometheusUnitsHelper {
     initUnit("KiBy", "kibibytes", "kibibyte");
     initUnit("MiBy", "mebibytes", "mebibyte");
     initUnit("GiBy", "gibibytes", "gibibyte");
-    initUnit("TiBy", "tibibytes", "tibibyte");
+    initUnit("TiBy", "tebibytes", "tebibyte");
+    initUnit("kBy", "kilobytes", "kilobyte");
+    // Upper case K is kelvin in UCUM, but keep it as an alias for existing users.
     initUnit("KBy", "kilobytes", "kilobyte");
     initUnit("MBy", "megabytes", "megabyte");
     initUnit("GBy", "gigabytes", "gigabyte");
diff --git a/exporters/prometheus/src/test/java/io/opentelemetry/exporter/prometheus/PrometheusUnitsHelperTest.java b/exporters/prometheus/src/test/java/io/opentelemetry/exporter/prometheus/PrometheusUnitsHelperTest.java
index 9d30c6fd35f..f2abc77102a 100644
--- a/exporters/prometheus/src/test/java/io/opentelemetry/exporter/prometheus/PrometheusUnitsHelperTest.java
+++ b/exporters/prometheus/src/test/java/io/opentelemetry/exporter/prometheus/PrometheusUnitsHelperTest.java
@@ -57,13 +57,14 @@ private static Stream<Arguments> providePrometheusOTelUnitEquivalentPairs() {
     return Stream.of(
         Arguments.argumentSet("bytes", "By", "bytes"),
         Arguments.argumentSet("kilobytes", "KBy", "kilobytes"),
+        Arguments.argumentSet("kilobytes lowercase k", "kBy", "kilobytes"),
         Arguments.argumentSet("megabytes", "MBy", "megabytes"),
         Arguments.argumentSet("gigabytes", "GBy", "gigabytes"),
         Arguments.argumentSet("terabytes", "TBy", "terabytes"),
         Arguments.argumentSet("kibibytes", "KiBy", "kibibytes"),
         Arguments.argumentSet("mebibytes", "MiBy", "mebibytes"),
         Arguments.argumentSet("gibibytes", "GiBy", "gibibytes"),
-        Arguments.argumentSet("tibibytes", "TiBy", "tibibytes"),
+        Arguments.argumentSet("tebibytes", "TiBy", "tebibytes"),
         Arguments.argumentSet("days", "d", "days"),
         Arguments.argumentSet("hours", "h", "hours"),
         Arguments.argumentSet("seconds", "s", "seconds"),