diff --git a/server/mergin/auth/api.yaml b/server/mergin/auth/api.yaml
index e400fbfd..df924109 100644
--- a/server/mergin/auth/api.yaml
+++ b/server/mergin/auth/api.yaml
@@ -934,9 +934,9 @@ components:
           description: total number of projects
           example: 12
         storage:
-          type: string
+          type: number
           description: projest files size in bytes
-          example: 1024 kB
+          example: 1024
         users:
           type: integer
           description: count of registered accounts
diff --git a/server/mergin/sync/utils.py b/server/mergin/sync/utils.py
index 9efcd284..b4120acc 100644
--- a/server/mergin/sync/utils.py
+++ b/server/mergin/sync/utils.py
@@ -333,7 +333,7 @@ def files_size():
             LEFT OUTER JOIN file_history fh ON fh.id = lf.file_id
             WHERE fh.change = 'update_diff'::push_change_type
         )
-        SELECT pg_size_pretty(COALESCE(SUM(sum), 0)) FROM partials;
+        SELECT COALESCE(SUM(sum), 0) FROM partials;
         """
     )
     return db.session.execute(files_size).scalar()
diff --git a/server/mergin/sync/workspace.py b/server/mergin/sync/workspace.py
index 3f2bc397..8cc0a27a 100644
--- a/server/mergin/sync/workspace.py
+++ b/server/mergin/sync/workspace.py
@@ -355,7 +355,7 @@ def project_access(self, project: Project) -> List[ProjectAccessDetail]:
     def server_editors_count(self) -> int:
         if Configuration.GLOBAL_ADMIN or Configuration.GLOBAL_WRITE:
             return User.query.filter(
-                is_(User.username.ilike("deleted_%"), False) | User.active,
+                is_(User.username.ilike("deleted_%"), False),
             ).count()
 
         return (
diff --git a/server/mergin/tests/test_auth.py b/server/mergin/tests/test_auth.py
index 569def6e..71a35e29 100644
--- a/server/mergin/tests/test_auth.py
+++ b/server/mergin/tests/test_auth.py
@@ -3,6 +3,7 @@
 # SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-MerginMaps-Commercial
 
 from datetime import datetime, timedelta
+import os
 import pytest
 import json
 from flask import url_for
@@ -30,6 +31,7 @@
     login_as_admin,
     login,
     upload_file_to_project,
+    test_project_dir,
 )
 
 
@@ -853,6 +855,9 @@ def test_server_usage(client):
     """Test server usage endpoint"""
     login_as_admin(client)
     workspace = create_workspace()
+    init_project = Project.query.filter_by(workspace_id=workspace.id).first()
+    resp = client.get("/app/admin/usage")
+    print(resp.json)
     user = add_user()
     admin = User.query.filter_by(username="mergin").first()
     # create new project
@@ -865,7 +870,7 @@ def test_server_usage(client):
     assert resp.json["users"] == 2
     assert resp.json["workspaces"] == 1
     assert resp.json["projects"] == 2
-    assert resp.json["storage"] == "454 kB"
+    assert resp.json["storage"] == project.disk_usage + init_project.disk_usage
     assert resp.json["active_monthly_contributors"] == 1
     assert resp.json["editors"] == 1
     project.set_role(user.id, ProjectRole.EDITOR)
diff --git a/web-app/packages/admin-lib/src/modules/admin/views/OverviewView.vue b/web-app/packages/admin-lib/src/modules/admin/views/OverviewView.vue
index 36bf6211..39bacdec 100644
--- a/web-app/packages/admin-lib/src/modules/admin/views/OverviewView.vue
+++ b/web-app/packages/admin-lib/src/modules/admin/views/OverviewView.vue
@@ -31,15 +31,17 @@ SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-MerginMaps-Commercial
         <usage-card class="col-12 sm:col-6 lg:col-3">
           <template #heading>Used storage</template>
           <div
-            class="w-full"
-            :style="{
+          class="w-full"
+          :style="{
               height: '40px'
             }"
           >
             <PProgressBar :value="0" :show-value="false"></PProgressBar>
           </div>
           <template #title
-            ><span>{{ usage?.storage }}</span></template
+          ><span>{{
+              $filters.filesize(usage.storage, null, 0)
+            }}</span></template
           >
         </usage-card>
         <usage-card class="col-12 sm:col-6 lg:col-3">
@@ -98,14 +100,6 @@ SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-MerginMaps-Commercial
             ><span>{{ usage?.active_monthly_contributors }}</span></template
           >
           <template #subtitle>this month</template>
-          <template #footer>
-            <!--            TODO: click to see last three month graph-->
-            <!--              <PButton-->
-            <!--                @click=""-->
-            <!--                class="w-full"-->
-            <!--                label="See more"-->
-            <!--              />-->
-          </template>
         </usage-card>
         <usage-card v-if="showWorkspaces" class="col-12 sm:col-6 lg:col-3">
           <template #heading>Workspaces</template>