diff --git a/CHANGELOG.md b/CHANGELOG.md
index 85681f4e8d9..cbb0ce5fa10 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## 0.16.11
 
+* `LanguageCodes`:
+    * In android and JVM targets now available `toJavaLocale` and from Java `Locale` conversations from/to
+      `IetfLanguageCode`
+
 ## 0.16.10
 
 * `Repos`:
diff --git a/language_codes/build.gradle b/language_codes/build.gradle
index 7c54502f100..a582807c4c6 100644
--- a/language_codes/build.gradle
+++ b/language_codes/build.gradle
@@ -5,3 +5,11 @@ plugins {
 }
 
 apply from: "$mppProjectWithSerializationPresetPath"
+
+kotlin {
+    sourceSets {
+        jvmMain {
+            dependsOn androidMain
+        }
+    }
+}
diff --git a/language_codes/src/jvmMain/kotlin/Locale.kt b/language_codes/src/jvmMain/kotlin/Locale.kt
new file mode 100644
index 00000000000..5f361402f2c
--- /dev/null
+++ b/language_codes/src/jvmMain/kotlin/Locale.kt
@@ -0,0 +1,8 @@
+package dev.inmo.micro_utils.language_codes
+
+import java.util.Locale
+
+fun IetfLanguageCode.toJavaLocale(): Locale = Locale.forLanguageTag(code)
+fun IetfLanguageCode?.toJavaLocaleOrDefault(): Locale = this ?.toJavaLocale() ?: Locale.getDefault()
+
+fun Locale.toIetfLanguageCode(): IetfLanguageCode = IetfLanguageCode(toLanguageTag())