diff --git a/headers/system.h b/headers/system.h
index 2154f970a..4319cf26d 100644
--- a/headers/system.h
+++ b/headers/system.h
@@ -4,10 +4,12 @@
 #include <cstdint>
 
 namespace System {
-    // Returns the size of on-board flash memory in bytes
+    // Returns the size of on-board flash memory reserved by the config
     uint32_t getTotalFlash();
     // Returns the amount of on-board flash memory used by the firmware in bytes
     uint32_t getUsedFlash();
+    // Returns the amount of physical flash memory on the board
+    uint32_t getPhysicalFlash();
     // Returns the amount of memory used for static allocations in bytes
     uint32_t getStaticAllocs();
     // Returns the total size of heap memory in bytes
diff --git a/src/configs/webconfig.cpp b/src/configs/webconfig.cpp
index d0f6c7643..c10578b6f 100644
--- a/src/configs/webconfig.cpp
+++ b/src/configs/webconfig.cpp
@@ -214,7 +214,11 @@ static void __attribute__((noinline)) writeDoc(DynamicJsonDocument& doc, const K
 
 static int32_t cleanPin(int32_t pin) { return isValidPin(pin) ? pin : -1; }
 
+static uint32_t systemFlashSize;
+
 void WebConfig::setup() {
+    // System Flash Size must be called once
+    systemFlashSize = System::getPhysicalFlash();
     rndis_init();
 }
 
@@ -2106,6 +2110,7 @@ std::string getMemoryReport()
     DynamicJsonDocument doc(LWIP_HTTPD_POST_MAX_PAYLOAD_LEN);
     writeDoc(doc, "totalFlash", System::getTotalFlash());
     writeDoc(doc, "usedFlash", System::getUsedFlash());
+    writeDoc(doc, "physicalFlash", systemFlashSize);
     writeDoc(doc, "staticAllocs", System::getStaticAllocs());
     writeDoc(doc, "totalHeap", System::getTotalHeap());
     writeDoc(doc, "usedHeap", System::getUsedHeap());
diff --git a/src/system.cpp b/src/system.cpp
index d91caa70a..036e89741 100644
--- a/src/system.cpp
+++ b/src/system.cpp
@@ -28,6 +28,22 @@ uint32_t System::getUsedFlash() {
     return &__flash_binary_end - &__flash_binary_start;
 }
 
+#define STORAGE_CMD_TOTAL_BYTES 3
+
+// Standard Storage instruction: 9f command prefix, Manufacturer ID, Flash Type, Capacity
+#define FLASH_STORAGE_CMD 0x9f
+#define FLASH_STORAGE_DATA_BYTES 3
+#define FLASH_STORAGE_TOTAL_BYTES (1 + FLASH_STORAGE_DATA_BYTES)
+
+uint32_t System::getPhysicalFlash() {
+
+    uint8_t txbuf[FLASH_STORAGE_TOTAL_BYTES] = {0};
+    uint8_t rxbuf[FLASH_STORAGE_TOTAL_BYTES] = {0};
+    txbuf[0] = FLASH_STORAGE_CMD;
+    flash_do_cmd(txbuf, rxbuf, FLASH_STORAGE_TOTAL_BYTES);
+    return 1 << rxbuf[3];
+}
+
 uint32_t System::getStaticAllocs() {
     const uint32_t inMemorySegmentsSize = reinterpret_cast<uint32_t>(&__bss_end__) - SRAM_BASE;
     const uint32_t stackSize = &__StackTop - &__StackLimit;
diff --git a/www/server/app.js b/www/server/app.js
index 3e509263f..aacb988b3 100644
--- a/www/server/app.js
+++ b/www/server/app.js
@@ -761,11 +761,12 @@ app.get('/api/reboot', (req, res) => {
 
 app.get('/api/getMemoryReport', (req, res) => {
 	return res.send({
-		totalFlash: 2048,
-		usedFlash: 1048,
+		totalFlash: 2048 * 1024,
+		usedFlash: 1048 * 1024,
+		physicalFlash: 2048 * 1024,
 		staticAllocs: 200,
-		totalHeap: 2048,
-		usedHeap: 1048,
+		totalHeap: 2048 * 1024,
+		usedHeap: 1048 * 1024,
 	});
 });
 
diff --git a/www/src/Locales/en/HomePage.jsx b/www/src/Locales/en/HomePage.jsx
index 4cc9b0044..1cc7eba8e 100644
--- a/www/src/Locales/en/HomePage.jsx
+++ b/www/src/Locales/en/HomePage.jsx
@@ -4,6 +4,7 @@ export default {
 	'header-text': 'Welcome to the GP2040-CE Web Configurator!',
 	'latest-text': 'Latest: {{version}}',
 	'memory-flash-text': 'Flash',
+	'memory-board-text': 'Board Flash',
 	'memory-header-text': 'Memory (KB)',
 	'memory-heap-text': 'Heap',
 	'memory-static-allocations-text': 'Static Allocations',
diff --git a/www/src/Pages/HomePage.jsx b/www/src/Pages/HomePage.jsx
index e6ba5570c..5f4f08b6e 100644
--- a/www/src/Pages/HomePage.jsx
+++ b/www/src/Pages/HomePage.jsx
@@ -55,11 +55,12 @@ export default function HomePage() {
 
 		WebApi.getMemoryReport(setLoading)
 			.then((response) => {
-				const { totalFlash, usedFlash, staticAllocs, totalHeap, usedHeap } =
+				const { totalFlash, usedFlash, physicalFlash, staticAllocs, totalHeap, usedHeap } =
 					response;
 				setMemoryReport({
 					totalFlash: toKB(totalFlash),
 					usedFlash: toKB(usedFlash),
+					physicalFlash: toKB(physicalFlash),
 					staticAllocs: toKB(staticAllocs),
 					totalHeap: toKB(totalHeap),
 					usedHeap: toKB(usedHeap),
@@ -111,6 +112,9 @@ export default function HomePage() {
 								{t('HomePage:memory-static-allocations-text')}:{' '}
 								{memoryReport.staticAllocs}
 							</div>
+							<div>
+								{t('HomePage:memory-board-text')}: {memoryReport.physicalFlash}
+							</div>
 						</div>
 					)}
 				</div>