diff --git a/src/modules/wireplumber.cpp b/src/modules/wireplumber.cpp
index a43ad29b..d04edd18 100644
--- a/src/modules/wireplumber.cpp
+++ b/src/modules/wireplumber.cpp
@@ -436,7 +437,7 @@ auto waybar::modules::Wireplumber::update() -> void {
     label_.get_style_context()->remove_class("source-muted");
   }
 
-  int vol = round(volume_ * 100.0);
+  double vol = 20 * std::log10(volume_); // % to dB
   int source_vol = round(source_volume_ * 100.0);
 
   // Get the state and apply state-specific format if available
@@ -450,7 +451,7 @@ auto waybar::modules::Wireplumber::update() -> void {
   }
 
   // Prepare source format string (similar to PulseAudio)
-  std::string format_source = "{volume}%";
+  std::string format_source = "{volume}dB";
   if (source_muted_) {
     if (config_["format-source-muted"].isString()) {
       format_source = config_["format-source-muted"].asString();