diff --git a/examples/bluetooth/ble_get_started/nimble/NimBLE_Connection/README.md b/examples/bluetooth/ble_get_started/nimble/NimBLE_Connection/README.md
index 65b0d41e0b..c5011ad4c9 100644
--- a/examples/bluetooth/ble_get_started/nimble/NimBLE_Connection/README.md
+++ b/examples/bluetooth/ble_get_started/nimble/NimBLE_Connection/README.md
@@ -92,14 +92,14 @@ static void start_advertising(void) {
     ...
 
     /* Set advertising interval */
-    rsp_fields.adv_itvl = 0x320;
+    rsp_fields.adv_itvl = BLE_GAP_ADV_ITVL_MS(500);
     rsp_fields.adv_itvl_is_present = 1;
 
     ...
 
     /* Set advertising interval */
-    adv_params.itvl_min = 0x320;
-    adv_params.itvl_max = 0x321;
+    adv_params.itvl_min = BLE_GAP_ADV_ITVL_MS(500);
+    adv_params.itvl_max = BLE_GAP_ADV_ITVL_MS(510);
 
     ...
 }
diff --git a/examples/bluetooth/ble_get_started/nimble/NimBLE_Connection/main/src/gap.c b/examples/bluetooth/ble_get_started/nimble/NimBLE_Connection/main/src/gap.c
index b42706f389..76eedff759 100644
--- a/examples/bluetooth/ble_get_started/nimble/NimBLE_Connection/main/src/gap.c
+++ b/examples/bluetooth/ble_get_started/nimble/NimBLE_Connection/main/src/gap.c
@@ -97,7 +97,7 @@ static void start_advertising(void) {
     rsp_fields.uri_len = sizeof(esp_uri);
 
     /* Set advertising interval */
-    rsp_fields.adv_itvl = 0x320;
+    rsp_fields.adv_itvl = BLE_GAP_ADV_ITVL_MS(500);
     rsp_fields.adv_itvl_is_present = 1;
 
     /* Set scan response fields */
@@ -112,8 +112,8 @@ static void start_advertising(void) {
     adv_params.disc_mode = BLE_GAP_DISC_MODE_GEN;
 
     /* Set advertising interval */
-    adv_params.itvl_min = 0x320;
-    adv_params.itvl_max = 0x321;
+    adv_params.itvl_min = BLE_GAP_ADV_ITVL_MS(500);
+    adv_params.itvl_max = BLE_GAP_ADV_ITVL_MS(510);
 
     /* Start advertising */
     rc = ble_gap_adv_start(own_addr_type, NULL, BLE_HS_FOREVER, &adv_params,
diff --git a/examples/bluetooth/ble_get_started/nimble/NimBLE_GATT_Server/main/src/gap.c b/examples/bluetooth/ble_get_started/nimble/NimBLE_GATT_Server/main/src/gap.c
index a17b0b282f..b9def39876 100644
--- a/examples/bluetooth/ble_get_started/nimble/NimBLE_GATT_Server/main/src/gap.c
+++ b/examples/bluetooth/ble_get_started/nimble/NimBLE_GATT_Server/main/src/gap.c
@@ -97,7 +97,7 @@ static void start_advertising(void) {
     rsp_fields.uri_len = sizeof(esp_uri);
 
     /* Set advertising interval */
-    rsp_fields.adv_itvl = 0x320;
+    rsp_fields.adv_itvl = BLE_GAP_ADV_ITVL_MS(500);
     rsp_fields.adv_itvl_is_present = 1;
 
     /* Set scan response fields */
@@ -112,8 +112,8 @@ static void start_advertising(void) {
     adv_params.disc_mode = BLE_GAP_DISC_MODE_GEN;
 
     /* Set advertising interval */
-    adv_params.itvl_min = 0x320;
-    adv_params.itvl_max = 0x321;
+    adv_params.itvl_min = BLE_GAP_ADV_ITVL_MS(500);
+    adv_params.itvl_max = BLE_GAP_ADV_ITVL_MS(510);
 
     /* Start advertising */
     rc = ble_gap_adv_start(own_addr_type, NULL, BLE_HS_FOREVER, &adv_params,
diff --git a/examples/bluetooth/ble_get_started/nimble/NimBLE_Security/main/src/gap.c b/examples/bluetooth/ble_get_started/nimble/NimBLE_Security/main/src/gap.c
index bd55748539..94f8221a6d 100644
--- a/examples/bluetooth/ble_get_started/nimble/NimBLE_Security/main/src/gap.c
+++ b/examples/bluetooth/ble_get_started/nimble/NimBLE_Security/main/src/gap.c
@@ -112,7 +112,7 @@ static void start_advertising(void) {
     rsp_fields.uri_len = sizeof(esp_uri);
 
     /* Set advertising interval */
-    rsp_fields.adv_itvl = 0x320;
+    rsp_fields.adv_itvl = BLE_GAP_ADV_ITVL_MS(500);
     rsp_fields.adv_itvl_is_present = 1;
 
     /* Set scan response fields */
@@ -127,8 +127,8 @@ static void start_advertising(void) {
     adv_params.disc_mode = BLE_GAP_DISC_MODE_GEN;
 
     /* Set advertising interval */
-    adv_params.itvl_min = 0x320;
-    adv_params.itvl_max = 0x321;
+    adv_params.itvl_min = BLE_GAP_ADV_ITVL_MS(500);
+    adv_params.itvl_max = BLE_GAP_ADV_ITVL_MS(510);
 
     /* Start advertising */
     rc = ble_gap_adv_start(own_addr_type, NULL, BLE_HS_FOREVER, &adv_params,