diff --git a/octoprint_costestimation/__init__.py b/octoprint_costestimation/__init__.py
index 9e90fac..78ab53b 100644
--- a/octoprint_costestimation/__init__.py
+++ b/octoprint_costestimation/__init__.py
@@ -71,13 +71,14 @@ def get_settings_defaults(self):
             requiresLogin=False,
             useFilamentManager=True,
             useSpoolManager=False,
+            useSpoolman=False,
             priceOfPrinter=0,            # €
             lifespanOfPrinter=0,         # h
             maintenanceCosts=0,          # €/h
         )
 
     def get_settings_version(self):
-        return 3
+        return 4
 
     def on_settings_migrate(self, target, current=None):
         if current is None or current == 1:
diff --git a/octoprint_costestimation/static/js/costestimation.js b/octoprint_costestimation/static/js/costestimation.js
index 332d761..2f131c8 100644
--- a/octoprint_costestimation/static/js/costestimation.js
+++ b/octoprint_costestimation/static/js/costestimation.js
@@ -19,6 +19,7 @@ $(function() {
         self.filamentManager = parameters[3];
         self.spoolManager = parameters[4];
         self.filesViewModel = parameters[5];
+        self.spoolman = parameters[6];
 
         self.showEstimatedCost = ko.pureComputed(function() {
             return self.settings.settings.plugins.costestimation.requiresLogin() ?
@@ -52,6 +53,8 @@ $(function() {
                 spoolData = self.filamentManager.selectedSpools();
             } else if (self.spoolManager !== null && pluginSettings.useSpoolManager()) {
                 spoolData = self.readSpoolManagerData();
+            } else if (self.spoolman !== null && pluginSettings.useSpoolman()) {
+                spoolData = self.readSpoolmanData();
             }
 
             // - calculating filament cost
@@ -175,11 +178,19 @@ $(function() {
             self.settings.settings.plugins.costestimation.useFilamentManager.subscribe(function(newValue){
                 if (newValue == true){
                     self.settings.settings.plugins.costestimation.useSpoolManager(false);
+                    self.settings.settings.plugins.costestimation.useSpoolman(false);
                 }
             });
             self.settings.settings.plugins.costestimation.useSpoolManager.subscribe(function(newValue){
                 if (newValue == true){
                     self.settings.settings.plugins.costestimation.useFilamentManager(false);
+                    self.settings.settings.plugins.costestimation.useSpoolman(false);
+                }
+            });
+            self.settings.settings.plugins.costestimation.useSpoolman.subscribe(function(newValue){
+                if (newValue == true){
+                    self.settings.settings.plugins.costestimation.useFilamentManager(false);
+                    self.settings.settings.plugins.costestimation.useSpoolManager(false);
                 }
             });
         };
@@ -214,8 +225,28 @@ $(function() {
             if (self.spoolManager === null){
                 self.settings.settings.plugins.costestimation.useSpoolManager(false);
             }
+            if (self.spoolman === null){
+                self.settings.settings.plugins.costestimation.useSpoolman(false);
+            }
         }
 
+        self.readSpoolmanData = ko.computed(function() {
+            const result = [];
+            for (const spool of self.spoolman.templateData.selectedSpoolsByToolIdx()) {
+                if (spool.spoolId == null) continue;
+                const pulledData = {
+                    cost: spool.spoolData.price || spool.spoolData.filament.price || 0,
+                    weight: spool.spoolData.initial_weight || 0,
+                    profile: {
+                        density: spool.spoolData.filament.density || 0,
+                        diameter: spool.spoolData.filament.diameter || 0
+                    }
+                };
+                result.push(pulledData)
+            }
+            return result;
+        })
+
         self.readSpoolManagerData = function() {
             // needed data
             // costOfFilament = spoolData[tool].cost;
@@ -270,8 +301,8 @@ $(function() {
         construct: CostEstimationViewModel,
         dependencies: ["printerStateViewModel", "settingsViewModel",
                        "loginStateViewModel", "filamentManagerViewModel",
-                       "spoolManagerViewModel", "filesViewModel"],
-        optional: ["filamentManagerViewModel","spoolManagerViewModel"],
+                       "spoolManagerViewModel", "filesViewModel", "spoolmanSidebarViewModel"],
+        optional: ["filamentManagerViewModel","spoolManagerViewModel", "spoolmanSidebarViewModel"],
         elements: ["#costestimation_string", "#settings_plugin_costestimation"]
     });
 });
diff --git a/octoprint_costestimation/templates/costestimation_settings.jinja2 b/octoprint_costestimation/templates/costestimation_settings.jinja2
index aaa6ac9..4d5ed3e 100644
--- a/octoprint_costestimation/templates/costestimation_settings.jinja2
+++ b/octoprint_costestimation/templates/costestimation_settings.jinja2
@@ -27,6 +27,18 @@
                 <!-- /ko -->
             </label>
         </div>
+        <div class="controls">
+            <label class="checkbox">
+                <input name="filamentTracker" type="checkbox" data-bind="checked: $root.settings.settings.plugins.costestimation.useSpoolman, enable: $root.spoolman !== null">
+                {{ _('Use <a target="_blank" href="https://github.com/OllisGit/OctoPrint-Spoolman">Spoolman</a>') }}
+                <!-- ko if: $root.spoolman !== null -->
+                <span class="text-success">{{ _("(installed)") }}</span>
+                <!-- /ko -->
+                <!-- ko if: $root.spoolman === null -->
+                <span class="text-error">{{ _("(not installed)") }}</span>
+                <!-- /ko -->
+            </label>
+        </div>
     </div>
 
     <div data-bind="visible: $root.showFilamentGroup()==false">