--- a/i3status.c	2019-10-25 23:31:41.210231542 +0200
+++ b/i3status.c	2019-10-25 23:25:25.088507686 +0200
@@ -431,6 +431,7 @@
         CFG_STR("threshold_degraded", NULL, CFGF_NONE),
         CFG_STR("threshold_critical", NULL, CFGF_NONE),
         CFG_STR("memory_used_method", "classical", CFGF_NONE),
+        CFG_STR("unit", "auto", CFGF_NONE),
         CFG_CUSTOM_ALIGN_OPT,
         CFG_CUSTOM_COLOR_OPTS,
         CFG_CUSTOM_MIN_WIDTH_OPT,
@@ -757,7 +758,7 @@
 
             CASE_SEC("memory") {
                 SEC_OPEN_MAP("memory");
-                print_memory(json_gen, buffer, cfg_getstr(sec, "format"), cfg_getstr(sec, "format_degraded"), cfg_getstr(sec, "threshold_degraded"), cfg_getstr(sec, "threshold_critical"), cfg_getstr(sec, "memory_used_method"));
+                print_memory(json_gen, buffer, cfg_getstr(sec, "format"), cfg_getstr(sec, "format_degraded"), cfg_getstr(sec, "threshold_degraded"), cfg_getstr(sec, "threshold_critical"), cfg_getstr(sec, "memory_used_method"), cfg_getstr(sec, "unit"));
                 SEC_CLOSE_MAP;
             }
 
--- a/include/i3status.h	2019-10-25 23:31:49.170197818 +0200
+++ b/include/i3status.h	2019-10-25 23:25:25.088507686 +0200
@@ -225,7 +225,7 @@
 void print_cpu_usage(yajl_gen json_gen, char *buffer, const char *format, const char *format_above_threshold, const char *format_above_degraded_threshold, const char *path, const float max_threshold, const float degraded_threshold);
 void print_eth_info(yajl_gen json_gen, char *buffer, const char *interface, const char *format_up, const char *format_down);
 void print_load(yajl_gen json_gen, char *buffer, const char *format, const char *format_above_threshold, const float max_threshold);
-void print_memory(yajl_gen json_gen, char *buffer, const char *format, const char *format_degraded, const char *threshold_degraded, const char *threshold_critical, const char *memory_used_method);
+void print_memory(yajl_gen json_gen, char *buffer, const char *format, const char *format_degraded, const char *threshold_degraded, const char *threshold_critical, const char *memory_used_method, const char *unit);
 void print_volume(yajl_gen json_gen, char *buffer, const char *fmt, const char *fmt_muted, const char *device, const char *mixer, int mixer_idx);
 bool process_runs(const char *path);
 int volume_pulseaudio(uint32_t sink_idx, const char *sink_name);
--- a/src/print_mem.c	2019-10-25 23:32:07.430120494 +0200
+++ b/src/print_mem.c	2019-10-25 23:25:25.088507686 +0200
@@ -12,21 +12,30 @@
 #define MAX_EXPONENT 4
 static const char *const iec_symbols[MAX_EXPONENT + 1] = {"", "Ki", "Mi", "Gi", "Ti"};
 
+static const char *const units[MAX_EXPONENT + 1] = {"", "KiB", "MiB", "GiB", "TiB"};
+
 static const char memoryfile_linux[] = "/proc/meminfo";
 
 /*
  * Prints the given amount of bytes in a human readable manner.
  *
  */
-static int print_bytes_human(char *outwalk, uint64_t bytes) {
+static int print_bytes_human(char *outwalk, uint64_t bytes, const char *unit) {
     double size = bytes;
     int exponent = 0;
     int bin_base = BINARY_BASE;
+    
     while (size >= bin_base && exponent < MAX_EXPONENT) {
+        if (strcasecmp(unit, units[exponent]) == 0) {
+            break;
+        }
+
         size /= bin_base;
+
         exponent += 1;
     }
-    return sprintf(outwalk, "%.1f %sB", size, iec_symbols[exponent]);
+
+    return sprintf(outwalk, "%.0f %sB", size, iec_symbols[exponent]);
 }
 
 /*
@@ -73,7 +82,7 @@
     return mem_absolute;
 }
 
-void print_memory(yajl_gen json_gen, char *buffer, const char *format, const char *format_degraded, const char *threshold_degraded, const char *threshold_critical, const char *memory_used_method) {
+void print_memory(yajl_gen json_gen, char *buffer, const char *format, const char *format_degraded, const char *threshold_degraded, const char *threshold_critical, const char *memory_used_method, const char *unit) {
     char *outwalk = buffer;
 
 #if defined(linux)
@@ -162,23 +171,23 @@
             *(outwalk++) = *walk;
 
         } else if (BEGINS_WITH(walk + 1, "total")) {
-            outwalk += print_bytes_human(outwalk, ram_total);
+            outwalk += print_bytes_human(outwalk, ram_total, unit);
             walk += strlen("total");
 
         } else if (BEGINS_WITH(walk + 1, "used")) {
-            outwalk += print_bytes_human(outwalk, ram_used);
+            outwalk += print_bytes_human(outwalk, ram_used, unit);
             walk += strlen("used");
 
         } else if (BEGINS_WITH(walk + 1, "free")) {
-            outwalk += print_bytes_human(outwalk, ram_free);
+            outwalk += print_bytes_human(outwalk, ram_free, unit);
             walk += strlen("free");
 
         } else if (BEGINS_WITH(walk + 1, "available")) {
-            outwalk += print_bytes_human(outwalk, ram_available);
+            outwalk += print_bytes_human(outwalk, ram_available, unit);
             walk += strlen("available");
 
         } else if (BEGINS_WITH(walk + 1, "shared")) {
-            outwalk += print_bytes_human(outwalk, ram_shared);
+            outwalk += print_bytes_human(outwalk, ram_shared, unit);
             walk += strlen("shared");
 
         } else if (BEGINS_WITH(walk + 1, "percentage_free")) {