diff --git a/layouter.py b/layouter.py
index a502ca6..7759067 100644
--- a/layouter.py
+++ b/layouter.py
@@ -62,13 +62,20 @@ def get_font_path_bold():
     files = glob.glob(path + "/**/DejaVuSans-Bold.ttf", recursive = True)
     return files[0]
 
-def human_readable_capacity(size, decimal_places=0):
+def human_readable_capacity_1024(size, decimal_places=0):
     for unit in ['B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB']:
         if size < 1024.0 or unit == 'PiB':
             break
         size /= 1024.0
     return f"{size:.{decimal_places}f} {unit}"
 
+def human_readable_capacity_1000(size, decimal_places=0):
+    for unit in ['B', 'KB', 'MB', 'GB', 'TB', 'PB']:
+        if size < 1000.0 or unit == 'PB':
+            break
+        size /= 1000.0
+    return f"{size:.{decimal_places}f} {unit}"
+
 def human_readable_power_on_hours(hours, decimal_places=2):
     return str(hours) + "h or " + str(int(hours/24)) + "d or " + str("{:.2f}".format(float(hours/24/365))) + "y"
     
@@ -82,7 +89,7 @@ def format_to_printable(drive):
     return DriveDataPrintable(
         cut_string(20,  re.sub(r"[^a-zA-Z0-9. ]", "", drive.modelfamiliy)),\
         cut_string(20,  re.sub(r"[^a-zA-Z0-9. ]", "", drive.modelname)),\
-        cut_string(20,  human_readable_capacity(drive.capacity)),\
+        cut_string(20,  human_readable_capacity_1000(drive.capacity)),\
         cut_string(16,  re.sub(r"[^a-zA-Z0-9.-_]", "", drive.serialnumber)),\
         cut_string(30,  human_readable_power_on_hours(drive.power_on_hours)),\
         cut_string(10,  str(drive.power_cycle)),\
diff --git a/output.png b/output.png
index 6efa03a..96c9e1a 100644
Binary files a/output.png and b/output.png differ