diff --git a/src/test/c/test_taschenrechner.c b/src/test/c/test_taschenrechner.c
index 5e16459..cf6c739 100644
--- a/src/test/c/test_taschenrechner.c
+++ b/src/test/c/test_taschenrechner.c
@@ -68,5 +68,46 @@ void test_ConTemp(void) {//5 celsius to fahrenheit
     TEST_ASSERT_EQUAL(41, result);
 }
 
+void test_ConSpeed(void) {//5 kmh to mph
+    double result = ConTemp(5, 0, 1);
+    TEST_ASSERT_EQUAL(3.10686, result);
+}
+
+void test_ConLiter(void) {//5 l to ml
+    double result = ConTemp(5, 1, 0);
+    TEST_ASSERT_EQUAL(5000, result);
+}
+
+void test_ConLiterToGallon(void) {//5 l to gallon
+    double result = ConTemp(5, 0, 1);
+    TEST_ASSERT_EQUAL(1.32086, result);
+}
+
+void test_ConData(void) {//5 b to kb
+    double result = ConData(5, 0, 1);
+    TEST_ASSERT_EQUAL(0.005, result);
+}
+
+void test_ConArea(void) {//5 mm to cm
+    double result = ConData(5, 0, 1);
+    TEST_ASSERT_EQUAL(0.05), result);
+}
+
+void test_ConVolume(void) {//5 mm to cm
+    double result = ConData(5, 0, 1);
+    TEST_ASSERT_EQUAL(0.005), result);
+}
+
+void test_ConClock(void) {//5:00 to 5AM
+    double result = ConData(5, 0, 1);
+    TEST_ASSERT_EQUAL(5), result);
+}
+
+void test_ConTime(void) {//5 ms to s
+    double result = ConData(5, 0, 1);
+    TEST_ASSERT_EQUAL(0.005), result);
+}
+
+
 
 #endif // TEST