diff --git a/arm9/source/driveMenu.cpp b/arm9/source/driveMenu.cpp
index f2f5043..c2b9683 100644
--- a/arm9/source/driveMenu.cpp
+++ b/arm9/source/driveMenu.cpp
@@ -200,7 +200,9 @@ void dm_drawBottomScreen(void) {
 		}
 		printf ("\n(SD FAT, ");
 		printDriveBytes(sdSize);
-		printf(")");
+		printf(")\n");
+        printDriveBytes(getBytesFree("sd:/"));
+        printf(" space free");
 	} else if (dmAssignedOp[dmCursorPosition] == 1) {
 		printf ("[fat:] FLASHCART");
 		if (fatLabel[0] != '\0') {
@@ -208,7 +210,9 @@ void dm_drawBottomScreen(void) {
 		}
 		printf ("\n(Slot-1 SD FAT, ");
 		printDriveBytes(fatSize);
-		printf(")");
+		printf(")\n");
+        printDriveBytes(getBytesFree("fat:/"));
+        printf(" space free");
 	} else if (dmAssignedOp[dmCursorPosition] == 2) {
 		printf ("GBA GAMECART\n");
 		printf ("(GBA Game)");
@@ -228,7 +232,9 @@ void dm_drawBottomScreen(void) {
 		printf ("[nand:] SYSNAND");
 		printf ("\n(SysNAND FAT, ");
 		printDriveBytes(nandSize);
-		printf(")");
+		printf(")\n");
+        printDriveBytes(getBytesFree("nand:/"));
+        printf(" space free");
 	} else if (dmAssignedOp[dmCursorPosition] == 8) {
 		printf ("[img:] FAT IMAGE");
 		printf ("\n(Image FAT, ");
diff --git a/arm9/source/driveOperations.cpp b/arm9/source/driveOperations.cpp
index 91b8e5f..fc4a1e2 100644
--- a/arm9/source/driveOperations.cpp
+++ b/arm9/source/driveOperations.cpp
@@ -42,41 +42,35 @@ u64 sdSize = 0;
 u64 fatSize = 0;
 u64 imgSize = 0;
 
-static int getGbNumber(u64 bytes) {
-	int gbNumber = 0;
-	for (u64 i = 0; i <= bytes; i += 0x40000000) {
-		gbNumber++;
+static float getGbNumber(u64 bytes) {
+	float gbNumber = 0.0f;
+	for (u64 i = 0; i <= bytes; i += 0x6666666) {
+		gbNumber += 0.1f;
 	}
 	return gbNumber;
 }
 
-static int getTbNumber(u64 bytes) {
-	int tbNumber = 0;
-	for (u64 i = 0; i <= bytes; i += 0x10000000000) {
-		tbNumber++;
+static float getTbNumber(u64 bytes) {
+	float tbNumber = 0.0f;
+	for (u64 i = 0; i <= bytes; i += 0x1999999999) {
+		tbNumber += 0.01f;
 	}
 	return tbNumber;
 }
 
 void printDriveBytes(u64 bytes)
 {
-	if (bytes == 1)
-		iprintf("%d Byte", (int)bytes);
-
-	else if (bytes >= 0 && bytes < 1024)
-		iprintf("%d Bytes", (int)bytes);
-
-	else if (bytes >= 1024 && bytes < (1024 * 1024))
+	if (bytes < (1024 * 1024))
 		printf("%d KB", (int)bytes / 1024);
 
 	else if (bytes >= (1024 * 1024) && bytes < (1024 * 1024 * 1024))
 		printf("%d MB", (int)bytes / 1024 / 1024);
 
 	else if (bytes >= 0x40000000 && bytes < 0x10000000000)
-		printf("%d GB", getGbNumber(bytes));
+		printf("%.1f GB", getGbNumber(bytes));
 
 	else
-		printf("%d TB", getTbNumber(bytes));
+		printf("%.1f TB", getTbNumber(bytes));
 }
 
 const char* getDrivePath(void) {
@@ -169,6 +163,12 @@ bool sdMount(void) {
 	return false;
 }
 
+u64 getBytesFree(const char* drivePath) {
+    struct statvfs st;
+    statvfs(drivePath, &st);
+    return (u64)st.f_bsize * (u64)st.f_bavail;
+}
+
 void sdUnmount(void) {
 	fatUnmount("sd");
 	sdLabel[0] = '\0';
diff --git a/arm9/source/driveOperations.h b/arm9/source/driveOperations.h
index 11cd0e2..c2546d3 100644
--- a/arm9/source/driveOperations.h
+++ b/arm9/source/driveOperations.h
@@ -44,5 +44,6 @@ extern void ramdrive2Mount(void);
 extern void nitroUnmount(void);
 extern bool imgMount(const char* imgName);
 extern void imgUnmount(void);
+extern u64 getBytesFree(const char* drivePath);
 
 #endif //FLASHCARD_H