diff --git a/library/core/src/char/methods.rs b/library/core/src/char/methods.rs
index a93b94867ce4c..aa5d286388c89 100644
--- a/library/core/src/char/methods.rs
+++ b/library/core/src/char/methods.rs
@@ -1741,12 +1741,8 @@ impl EscapeDebugExtArgs {
 const fn len_utf8(code: u32) -> usize {
     if code < MAX_ONE_B {
         1
-    } else if code < MAX_TWO_B {
-        2
-    } else if code < MAX_THREE_B {
-        3
     } else {
-        4
+        2 + ((code >= MAX_TWO_B) as usize) + ((code >= MAX_THREE_B) as usize)
     }
 }