diff --git a/Kit/Widgets/NetworkChart.swift b/Kit/Widgets/NetworkChart.swift
index e442e8c9..3b33a0b5 100644
--- a/Kit/Widgets/NetworkChart.swift
+++ b/Kit/Widgets/NetworkChart.swift
@@ -19,6 +19,7 @@ public class NetworkChart: WidgetWrapper {
     private var downloadColor: Color = .secondRed
     private var uploadColor: Color = .secondBlue
     private var scaleState: Scale = .linear
+    private var commonScaleState: Bool = true
     
     private var chart: NetworkChartView = NetworkChartView(
         frame: NSRect(x: 0, y: 0, width: 30, height: Constants.Widget.height - (2*Constants.Widget.margin.y)),
@@ -80,11 +81,13 @@ public class NetworkChart: WidgetWrapper {
             self.downloadColor = Color.fromString(Store.shared.string(key: "\(self.title)_\(self.type.rawValue)_downloadColor", defaultValue: self.downloadColor.key))
             self.uploadColor = Color.fromString(Store.shared.string(key: "\(self.title)_\(self.type.rawValue)_uploadColor", defaultValue: self.uploadColor.key))
             self.scaleState = Scale.fromString(Store.shared.string(key: "\(self.title)_\(self.type.rawValue)_scale", defaultValue: self.scaleState.key))
+            self.commonScaleState = Store.shared.bool(key: "\(self.title)_\(self.type.rawValue)_commonScale", defaultValue: self.commonScaleState)
             
             if let downloadColor =  self.downloadColor.additional as? NSColor,
                let uploadColor = self.uploadColor.additional as? NSColor {
                 self.chart.colors = [downloadColor, uploadColor]
             }
+            self.chart.setScale(self.scaleState, self.commonScaleState)
             self.chart.reinit(self.historyCount)
         }
         
@@ -231,6 +234,12 @@ public class NetworkChart: WidgetWrapper {
             selected: self.scaleState.key
         ))
         
+        view.addArrangedSubview(toggleSettingRow(
+            title: localizedString("Common scale"),
+            action: #selector(toggleCommonScale),
+            state: self.commonScaleState
+        ))
+        
         return view
     }
     
@@ -334,8 +343,22 @@ public class NetworkChart: WidgetWrapper {
         guard let value = Scale.allCases.first(where: { $0.key == key }) else { return }
         
         self.scaleState = value
-        self.chart.setScale(value)
+        self.chart.setScale(value, self.commonScaleState)
         Store.shared.set(key: "\(self.title)_\(self.type.rawValue)_scale", value: key)
         self.display()
     }
+    
+    @objc private func toggleCommonScale(_ sender: NSControl) {
+        var state: NSControl.StateValue? = nil
+        if #available(OSX 10.15, *) {
+            state = sender is NSSwitch ? (sender as! NSSwitch).state: nil
+        } else {
+            state = sender is NSButton ? (sender as! NSButton).state: nil
+        }
+        
+        self.commonScaleState = state! == .on ? true : false
+        self.chart.setScale(self.scaleState, self.commonScaleState)
+        Store.shared.set(key: "\(self.title)_\(self.type.rawValue)_commonScale", value: self.commonScaleState)
+        self.display()
+    }
 }
diff --git a/Kit/plugins/Charts.swift b/Kit/plugins/Charts.swift
index fdbcea74..a44000ef 100644
--- a/Kit/plugins/Charts.swift
+++ b/Kit/plugins/Charts.swift
@@ -303,6 +303,7 @@ public class NetworkChartView: NSView {
     
     private var minMax: Bool = false
     private var scale: Scale = .none
+    private var commonScale: Bool = true
     
     public init(frame: NSRect, num: Int, minMax: Bool = true) {
         self.minMax = minMax
@@ -330,6 +331,14 @@ public class NetworkChartView: NSView {
             downloadMax = 1
         }
         
+        if !self.commonScale {
+            if downloadMax > uploadMax {
+                uploadMax = downloadMax
+            } else {
+                downloadMax = uploadMax
+            }
+        }
+        
         let lineWidth = 1 / (NSScreen.main?.backingScaleFactor ?? 1)
         let offset = lineWidth / 2
         let zero: CGFloat = (dirtyRect.height/2) + dirtyRect.origin.y
@@ -427,8 +436,10 @@ public class NetworkChartView: NSView {
         }
     }
     
-    public func setScale(_ newScale: Scale) {
+    public func setScale(_ newScale: Scale, _ commonScale: Bool) {
         self.scale = newScale
+        self.commonScale = commonScale
+        
         if self.window?.isVisible ?? false {
             self.display()
         }