diff --git a/src/ISO639.php b/src/ISO639.php
index 3ed8486..433f734 100644
--- a/src/ISO639.php
+++ b/src/ISO639.php
@@ -450,4 +450,26 @@ public function getLanguageByIsoCode2b($code)
         return null;
     }
 
+    /**
+     * Get ISO-639-2t code from ISO-639-1 code
+     *
+     * @param string $code
+     * @return string
+     */
+    public function code2tByCode1($code)
+    {
+        $code = strtolower($code);
+
+        $result = '';
+
+        foreach ($this->languages as $lang) {
+            if($lang[0] === $code) {
+                $result = $lang[1];
+                break;
+            }
+        }
+
+        return $result;
+    }
+
 }
diff --git a/tests/ISO639Test.php b/tests/ISO639Test.php
index 5a5b4bc..0e13813 100644
--- a/tests/ISO639Test.php
+++ b/tests/ISO639Test.php
@@ -249,4 +249,12 @@ public function testGetLanguageByIsoCode2B()
         $this->assertNull($this->iso->getLanguageByIsoCode2b('null'));
     }
 
+    public function testCode2tByCode1()
+    {
+        $this->assertSame('fra', $this->iso->code2tByCode1('fr'));
+        $this->assertSame('eng', $this->iso->code2tByCode1('en'));
+        $this->assertSame('spa', $this->iso->code2tByCode1('es'));
+        $this->assertSame('ind', $this->iso->code2tByCode1('id'));
+    }
+
 }