diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8060e0fa..ff0fd890 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ Added an option to configure the path separator. If you want something
 else than an ordinary slash, you could set
 `POWERLEVEL9K_DIR_PATH_SEPARATOR` to whatever you want.
 
+### New segment 'disk_usage' added
+
+This segment will show the usage level of your current partition.
+
 ## v0.5.0
 
 ### `load` and `ram` changes
diff --git a/README.md b/README.md
index f6b8c54c..0d3eb303 100644
--- a/README.md
+++ b/README.md
@@ -88,6 +88,7 @@ The segments that are currently available are:
 * [`battery`](#battery) - Current battery status.
 * [`context`](#context) - Your username and host.
 * [`dir`](#dir) - Your current working directory.
+* [`disk_usage`](#disk_usage) - Disk usage of your current partition.
 * `history` - The command number for the current line.
 * [`ip`](#ip) - Shows the current IP address.
 * [`public_ip`](#public_ip) - Shows your public IP address.
@@ -306,6 +307,16 @@ If you want to customize the directory separator, you could set:
 POWERLEVEL9K_DIR_PATH_SEPARATOR="%f "$'\uE0B1'" %F"
 ```
 
+##### disk_usage
+
+The `disk_usage` segment will show the usage level of the partition that your current working directory resides in. It can be configured with the following variables.
+
+| Variable | Default Value | Description |
+|----------|---------------|-------------|
+|POWERLEVEL9K_DISK_USAGE_ONLY_WARNING|false|Hide the segment except when usage levels have hit warning or critical levels.|
+|POWERLEVEL9K_DISK_USAGE_WARNING_LEVEL|90|The usage level that triggers a warning state.|
+|POWERLEVEL9K_DISK_USAGE_CRITICAL_LEVEL|95|The usage level that triggers a critical state.|
+
 ##### ip
 
 This segment tries to examine all currently used network interfaces and prints
diff --git a/functions/icons.zsh b/functions/icons.zsh
index 43847427..df92d22a 100644
--- a/functions/icons.zsh
+++ b/functions/icons.zsh
@@ -34,6 +34,7 @@ case $POWERLEVEL9K_MODE in
       TEST_ICON                      $'\uE891'              # 
       TODO_ICON                      $'\u2611'              # ☑
       BATTERY_ICON                   $'\uE894'              # 
+      DISK_ICON                      $'\uE1AE '             # 
       OK_ICON                        $'\u2713'              # ✓
       FAIL_ICON                      $'\u2718'              # ✘
       SYMFONY_ICON                   'SF'
@@ -97,6 +98,7 @@ case $POWERLEVEL9K_MODE in
       TEST_ICON                      $'\uF291'              # 
       TODO_ICON                      $'\u2611'              # ☑
       BATTERY_ICON                   $'\U1F50B'             # 🔋
+      DISK_ICON                      $'\uF0A0 '             # 
       OK_ICON                        $'\u2713'              # ✓
       FAIL_ICON                      $'\u2718'              # ✘
       SYMFONY_ICON                   'SF'
@@ -156,6 +158,7 @@ case $POWERLEVEL9K_MODE in
       TEST_ICON                      ''
       TODO_ICON                      $'\u2611'              # ☑
       BATTERY_ICON                   $'\U1F50B'             # 🔋
+      DISK_ICON                      $'hdd '
       OK_ICON                        $'\u2713'              # ✓
       FAIL_ICON                      $'\u2718'              # ✘
       SYMFONY_ICON                   'SF'
diff --git a/powerlevel9k.zsh-theme b/powerlevel9k.zsh-theme
index c3f2be74..f2e32582 100755
--- a/powerlevel9k.zsh-theme
+++ b/powerlevel9k.zsh-theme
@@ -337,6 +337,48 @@ prompt_background_jobs() {
   fi
 }
 
+# Segment that indicates usage level of current partition.
+set_default POWERLEVEL9K_DISK_USAGE_ONLY_WARNING false
+set_default POWERLEVEL9K_DISK_USAGE_WARNING_LEVEL 90
+set_default POWERLEVEL9K_DISK_USAGE_CRITICAL_LEVEL 95
+prompt_disk_usage() {
+  local current_state="unknown"
+  typeset -AH hdd_usage_forecolors
+  hdd_usage_forecolors=(
+    'normal'        'yellow'
+    'warning'       "$DEFAULT_COLOR"
+    'critical'      'white'
+  )
+  typeset -AH hdd_usage_backcolors
+  hdd_usage_backcolors=(
+    'normal'        $DEFAULT_COLOR
+    'warning'       'yellow'
+    'critical'      'red'
+  )
+
+  local disk_usage="${$(\df -P . | sed -n '2p' | awk '{ print $5 }')%%\%}"
+
+  if [ "$disk_usage" -ge "$POWERLEVEL9K_DISK_USAGE_WARNING_LEVEL" ]; then
+    current_state='warning'
+    if [ "$disk_usage" -ge "$POWERLEVEL9K_DISK_USAGE_CRITICAL_LEVEL" ]; then
+        current_state='critical'
+    fi
+  else
+    if [[ "$POWERLEVEL9K_DISK_USAGE_ONLY_WARNING" == true ]]; then
+        current_state=''
+        return
+    fi
+    current_state='normal'
+  fi
+
+  local message="${disk_usage}%%"
+
+  # Draw the prompt_segment
+  if [[ -n $disk_usage ]]; then
+    "$1_prompt_segment" "${0}_${current_state}" "$2" "${hdd_usage_backcolors[$current_state]}" "${hdd_usage_forecolors[$current_state]}" "$message" 'DISK_ICON'
+  fi
+}
+
 prompt_battery() {
   # The battery can have four different states - default to 'unknown'.
   local current_state='unknown'