diff --git a/icu4c/source/tools/ctestfw/unicode/uperf.h b/icu4c/source/tools/ctestfw/unicode/uperf.h
index 8442af2f67..6b6f33018c 100644
--- a/icu4c/source/tools/ctestfw/unicode/uperf.h
+++ b/icu4c/source/tools/ctestfw/unicode/uperf.h
@@ -16,6 +16,8 @@
 #include "unicode/utimer.h"
 #include "ucbuf.h"
 
+#if !UCONFIG_NO_CONVERSION
+
 U_NAMESPACE_USE
 // Use the TESTCASE macro in subclasses of IntlTest.  Define the
 // runIndexedTest method in this fashion:
@@ -157,4 +159,5 @@ public:
 };
 
 #endif
+#endif
 
diff --git a/icu4c/source/tools/ctestfw/uperf.cpp b/icu4c/source/tools/ctestfw/uperf.cpp
index 8d44697483..97269f580b 100644
--- a/icu4c/source/tools/ctestfw/uperf.cpp
+++ b/icu4c/source/tools/ctestfw/uperf.cpp
@@ -10,6 +10,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#if !UCONFIG_NO_CONVERSION
 static const char delim = '/';
 static int32_t execCount = 0;
 UPerfTest* UPerfTest::gTest = NULL;
@@ -466,4 +467,4 @@ UPerfTest::~UPerfTest(){
     ucbuf_close(ucharBuf);
 }
 
-
+#endif