diff --git a/examples/calib_udelay/Kconfig b/examples/calib_udelay/Kconfig
index a6a8e6932..97b059285 100644
--- a/examples/calib_udelay/Kconfig
+++ b/examples/calib_udelay/Kconfig
@@ -22,4 +22,10 @@ config EXAMPLES_CALIB_UDELAY_NUM_RESULTS
 	int "Number of results to generate for calibration slope"
 	default 20
 
+config EXAMPLES_CALIB_UDELAY_DELAY_TEST_ITERATIONS
+	int "Delay loop interrations per test."
+	default 100000
+	---help---
+		Lower numbers decrease the time taken for the test to complete,
+		but may reduce the accuracy of the results.
 endif
diff --git a/examples/calib_udelay/calib_udelay_main.c b/examples/calib_udelay/calib_udelay_main.c
index 5f1abbf57..8f3638a13 100644
--- a/examples/calib_udelay/calib_udelay_main.c
+++ b/examples/calib_udelay/calib_udelay_main.c
@@ -43,7 +43,7 @@
 #  define CONFIG_EXAMPLES_CALIB_UDELAY_NUM_RESULTS 20
 #endif
 
-#define DELAY_TEST_ITERS 100000
+#define DELAY_TEST_ITERS CONFIG_EXAMPLES_CALIB_UDELAY_DELAY_TEST_ITERATIONS
 
 /****************************************************************************
  * Private Types