Index: uspace/app/stats/stats.c
===================================================================
--- uspace/app/stats/stats.c	(revision 74c8f34494162616317c01dd0cbff697b306111a)
+++ uspace/app/stats/stats.c	(revision 933cadfdb63d0a16870db764880b5c144894e112)
@@ -69,13 +69,19 @@
 	size_t i;
 	for (i = 0; i < count; i++) {
-		uint64_t resmem, virtmem, ucycles, kcycles;
-		char resmem_suffix, virtmem_suffix, usuffix, ksuffix;
-		
-		order_suffix(stats_tasks[i].resmem, &resmem, &resmem_suffix);
-		order_suffix(stats_tasks[i].virtmem, &virtmem, &virtmem_suffix);
+		uint64_t resmem;
+		uint64_t virtmem;
+		uint64_t ucycles;
+		uint64_t kcycles;
+		const char *resmem_suffix;
+		const char *virtmem_suffix;
+		char usuffix;
+		char ksuffix;
+		
+		bin_order_suffix(stats_tasks[i].resmem, &resmem, &resmem_suffix, true);
+		bin_order_suffix(stats_tasks[i].virtmem, &virtmem, &virtmem_suffix, true);
 		order_suffix(stats_tasks[i].ucycles, &ucycles, &usuffix);
 		order_suffix(stats_tasks[i].kcycles, &kcycles, &ksuffix);
 		
-		printf("%-8" PRIu64 " %7zu %9" PRIu64 "%c %8" PRIu64 "%c"
+		printf("%-8" PRIu64 " %7zu %7" PRIu64 "%s %6" PRIu64 "%s"
 		    " %8" PRIu64 "%c %8" PRIu64 "%c %s\n",
 		    stats_tasks[i].task_id, stats_tasks[i].threads,
Index: uspace/app/top/screen.c
===================================================================
--- uspace/app/top/screen.c	(revision 74c8f34494162616317c01dd0cbff697b306111a)
+++ uspace/app/top/screen.c	(revision 933cadfdb63d0a16870db764880b5c144894e112)
@@ -254,16 +254,16 @@
 	uint64_t used;
 	uint64_t free;
-	char total_suffix;
-	char unavail_suffix;
-	char used_suffix;
-	char free_suffix;
-	
-	order_suffix(data->physmem->total, &total, &total_suffix);
-	order_suffix(data->physmem->unavail, &unavail, &unavail_suffix);
-	order_suffix(data->physmem->used, &used, &used_suffix);
-	order_suffix(data->physmem->free, &free, &free_suffix);
-	
-	printf("memory: %" PRIu64 "%c total, %" PRIu64 "%c unavail, %"
-	    PRIu64 "%c used, %" PRIu64 "%c free", total, total_suffix,
+	const char *total_suffix;
+	const char *unavail_suffix;
+	const char *used_suffix;
+	const char *free_suffix;
+	
+	bin_order_suffix(data->physmem->total, &total, &total_suffix, false);
+	bin_order_suffix(data->physmem->unavail, &unavail, &unavail_suffix, false);
+	bin_order_suffix(data->physmem->used, &used, &used_suffix, false);
+	bin_order_suffix(data->physmem->free, &free, &free_suffix, false);
+	
+	printf("memory: %" PRIu64 "%s total, %" PRIu64 "%s unavail, %"
+	    PRIu64 "%s used, %" PRIu64 "%s free", total, total_suffix,
 	    unavail, unavail_suffix, used, used_suffix, free, free_suffix);
 	screen_newline();
@@ -295,15 +295,15 @@
 		
 		uint64_t resmem;
-		char resmem_suffix;
-		order_suffix(task->resmem, &resmem, &resmem_suffix);
+		const char *resmem_suffix;
+		bin_order_suffix(task->resmem, &resmem, &resmem_suffix, true);
 		
 		uint64_t virtmem;
-		char virtmem_suffix;
-		order_suffix(task->virtmem, &virtmem, &virtmem_suffix);
-		
-		printf("%-8" PRIu64 " %7zu %9" PRIu64 "%c ",
+		const char *virtmem_suffix;
+		bin_order_suffix(task->virtmem, &virtmem, &virtmem_suffix, true);
+		
+		printf("%-8" PRIu64 " %7zu %7" PRIu64 "%s ",
 		    task->task_id, task->threads, resmem, resmem_suffix);
 		print_percent(perc->resmem, 2);
-		printf(" %8" PRIu64 "%c ", virtmem, virtmem_suffix);
+		printf(" %6" PRIu64 "%s ", virtmem, virtmem_suffix);
 		print_percent(perc->virtmem, 2);
 		puts(" ");
Index: uspace/lib/c/generic/str.c
===================================================================
--- uspace/lib/c/generic/str.c	(revision 74c8f34494162616317c01dd0cbff697b306111a)
+++ uspace/lib/c/generic/str.c	(revision 933cadfdb63d0a16870db764880b5c144894e112)
@@ -1215,21 +1215,21 @@
 void order_suffix(const uint64_t val, uint64_t *rv, char *suffix)
 {
-	if (val > 10000000000000000000ULL) {
-		*rv = val / 1000000000000000000ULL;
+	if (val > UINT64_C(10000000000000000000)) {
+		*rv = val / UINT64_C(1000000000000000000);
 		*suffix = 'Z';
-	} else if (val > 1000000000000000000ULL) {
-		*rv = val / 1000000000000000ULL;
+	} else if (val > UINT64_C(1000000000000000000)) {
+		*rv = val / UINT64_C(1000000000000000);
 		*suffix = 'E';
-	} else if (val > 1000000000000000ULL) {
-		*rv = val / 1000000000000ULL;
+	} else if (val > UINT64_C(1000000000000000)) {
+		*rv = val / UINT64_C(1000000000000);
 		*suffix = 'T';
-	} else if (val > 1000000000000ULL) {
-		*rv = val / 1000000000ULL;
+	} else if (val > UINT64_C(1000000000000)) {
+		*rv = val / UINT64_C(1000000000);
 		*suffix = 'G';
-	} else if (val > 1000000000ULL) {
-		*rv = val / 1000000ULL;
+	} else if (val > UINT64_C(1000000000)) {
+		*rv = val / UINT64_C(1000000);
 		*suffix = 'M';
-	} else if (val > 1000000ULL) {
-		*rv = val / 1000ULL;
+	} else if (val > UINT64_C(1000000)) {
+		*rv = val / UINT64_C(1000);
 		*suffix = 'k';
 	} else {
@@ -1239,4 +1239,31 @@
 }
 
+void bin_order_suffix(const uint64_t val, uint64_t *rv, const char **suffix,
+    bool fixed)
+{
+	if (val > UINT64_C(1152921504606846976)) {
+		*rv = val / UINT64_C(1125899906842624);
+		*suffix = "EiB";
+	} else if (val > UINT64_C(1125899906842624)) {
+		*rv = val / UINT64_C(1099511627776);
+		*suffix = "TiB";
+	} else if (val > UINT64_C(1099511627776)) {
+		*rv = val / UINT64_C(1073741824);
+		*suffix = "GiB";
+	} else if (val > UINT64_C(1073741824)) {
+		*rv = val / UINT64_C(1048576);
+		*suffix = "MiB";
+	} else if (val > UINT64_C(1048576)) {
+		*rv = val / UINT64_C(1024);
+		*suffix = "KiB";
+	} else {
+		*rv = val;
+		if (fixed)
+			*suffix = "B  ";
+		else
+			*suffix = "B";
+	}
+}
+
 /** @}
  */
Index: uspace/lib/c/include/macros.h
===================================================================
--- uspace/lib/c/include/macros.h	(revision 74c8f34494162616317c01dd0cbff697b306111a)
+++ uspace/lib/c/include/macros.h	(revision 933cadfdb63d0a16870db764880b5c144894e112)
@@ -39,9 +39,6 @@
 #define max(a, b)  ((a) > (b) ? (a) : (b))
 
-#define SIZE2KB(size)  ((size) >> 10)
-#define SIZE2MB(size)  ((size) >> 20)
-
-#define KB2SIZE(kb)  ((kb) << 10)
-#define MB2SIZE(mb)  ((mb) << 20)
+#define KiB2SIZE(kb)  ((kb) << 10)
+#define MiB2SIZE(mb)  ((mb) << 20)
 
 #define STRING(arg)      STRING_ARG(arg)
Index: uspace/lib/c/include/str.h
===================================================================
--- uspace/lib/c/include/str.h	(revision 74c8f34494162616317c01dd0cbff697b306111a)
+++ uspace/lib/c/include/str.h	(revision 933cadfdb63d0a16870db764880b5c144894e112)
@@ -89,5 +89,6 @@
 extern int str_size_t(const char *, char **, unsigned int, bool, size_t *);
 
-extern void order_suffix(const uint64_t val, uint64_t *rv, char *suffix);
+extern void order_suffix(const uint64_t, uint64_t *, char *);
+extern void bin_order_suffix(const uint64_t, uint64_t *, const char **, bool);
 
 /*