diff --git a/changelog.md b/changelog.md
index 4f1c043..1e82298 100644
--- a/changelog.md
+++ b/changelog.md
@@ -6,3 +6,4 @@
 ### Bug Fixes
 
 - 修改混合端口后系统代理没有更新
+- 缩短MacOS网速显示长度
diff --git a/src/main/core/mihomoApi.ts b/src/main/core/mihomoApi.ts
index 3557570..f8b4708 100644
--- a/src/main/core/mihomoApi.ts
+++ b/src/main/core/mihomoApi.ts
@@ -186,11 +186,11 @@ const mihomoTraffic = async (): Promise<void> => {
     const json = JSON.parse(data) as IMihomoTrafficInfo
     if (showTraffic) {
       if (trafficHopping) {
-        tray?.setTitle('↑' + `${calcTraffic(json.up)}/s`.padStart(12), {
+        tray?.setTitle('↑' + `${calcTraffic(json.up)}/s`.padStart(9), {
           fontType: 'monospaced'
         })
       } else {
-        tray?.setTitle('↓' + `${calcTraffic(json.down)}/s`.padStart(12), {
+        tray?.setTitle('↓' + `${calcTraffic(json.down)}/s`.padStart(9), {
           fontType: 'monospaced'
         })
       }
@@ -201,9 +201,9 @@ const mihomoTraffic = async (): Promise<void> => {
     if (process.platform !== 'linux') {
       tray?.setToolTip(
         '↑' +
-          `${calcTraffic(json.up)}/s`.padStart(12) +
+          `${calcTraffic(json.up)}/s`.padStart(9) +
           '\n↓' +
-          `${calcTraffic(json.down)}/s`.padStart(12)
+          `${calcTraffic(json.down)}/s`.padStart(9)
       )
     }
 
diff --git a/src/main/utils/calc.ts b/src/main/utils/calc.ts
index 9a1a92a..c5e1c11 100644
--- a/src/main/utils/calc.ts
+++ b/src/main/utils/calc.ts
@@ -1,19 +1,19 @@
 export function calcTraffic(byte: number): string {
   if (byte < 1024) return `${byte} B`
   byte /= 1024
-  if (byte < 1024) return `${byte.toFixed(2)} KB`
+  if (byte < 1024) return `${Math.round(byte)} KB`
   byte /= 1024
-  if (byte < 1024) return `${byte.toFixed(2)} MB`
+  if (byte < 1024) return `${Math.round(byte)} MB`
   byte /= 1024
-  if (byte < 1024) return `${byte.toFixed(2)} GB`
+  if (byte < 1024) return `${Math.round(byte)} GB`
   byte /= 1024
-  if (byte < 1024) return `${byte.toFixed(2)} TB`
+  if (byte < 1024) return `${Math.round(byte)} TB`
   byte /= 1024
-  if (byte < 1024) return `${byte.toFixed(2)} PB`
+  if (byte < 1024) return `${Math.round(byte)} PB`
   byte /= 1024
-  if (byte < 1024) return `${byte.toFixed(2)} EB`
+  if (byte < 1024) return `${Math.round(byte)} EB`
   byte /= 1024
-  if (byte < 1024) return `${byte.toFixed(2)} ZB`
+  if (byte < 1024) return `${Math.round(byte)} ZB`
   byte /= 1024
-  return `${byte.toFixed(2)} YB`
+  return `${Math.round(byte)} YB`
 }