diff --git a/daemon/src/gpu_controller.rs b/daemon/src/gpu_controller.rs
index 05ed369..69c7de0 100644
--- a/daemon/src/gpu_controller.rs
+++ b/daemon/src/gpu_controller.rs
@@ -50,6 +50,7 @@ pub struct GpuInfo {
     pub link_speed: String,
     pub link_width: u8,
     pub vulkan_info: VulkanInfo,
+    pub max_fan_speed: i32,
 }
 
 impl GpuController {
@@ -150,6 +151,7 @@ impl GpuController {
 
 
         let vulkan_info = GpuController::get_vulkan_info(&model_id);
+        let max_fan_speed = self.hw_mon.fan_max_speed;
 
         GpuInfo {
             gpu_vendor: vendor,
@@ -164,6 +166,7 @@ impl GpuController {
             link_speed,
             link_width,
             vulkan_info,
+            max_fan_speed,
         }
     }
 
diff --git a/daemon/src/hw_mon.rs b/daemon/src/hw_mon.rs
index 82027bd..10cded2 100644
--- a/daemon/src/hw_mon.rs
+++ b/daemon/src/hw_mon.rs
@@ -10,7 +10,7 @@ pub enum HWMonError {
 #[derive(Debug, Clone)]
 pub struct HWMon {
     hwmon_path: PathBuf,
-    fan_max_speed: i32,
+    pub fan_max_speed: i32,
     fan_control: Arc<AtomicBool>,
     fan_curve: Arc<RwLock<BTreeMap<i32, f64>>>,
 }
diff --git a/gui/src/main.rs b/gui/src/main.rs
index 08b466a..242808f 100644
--- a/gui/src/main.rs
+++ b/gui/src/main.rs
@@ -163,7 +163,7 @@ fn build_ui(application: &gtk::Application) {
 
         gpu_power_text_buffer.set_text(&format!("{}/{}W", gpu_stats.power_avg, gpu_stats.power_max));
 
-        fan_speed_text_buffer.set_text(&format!("{}RPM", gpu_stats.fan_speed));
+        fan_speed_text_buffer.set_text(&format!("{}RPM({}%)", gpu_stats.fan_speed, (gpu_stats.fan_speed as f64 / gpu_info.max_fan_speed as f64 * 100 as f64) as i32));
 
         glib::Continue(true)
     });