diff --git a/CHANGELOG.md b/CHANGELOG.md
index 24c448952..874ba170d 100755
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,11 +2,12 @@
 # 🚀Changelog
 
 -------------------------------------------------------------------------------------------------------------
-# 5.8.34(2024-11-13)
+# 5.8.34(2024-11-15)
 
 ### 🐣新特性
 * 【http   】      增加Windows微信浏览器识别（issue#IB3SJF@Gitee）
 * 【core   】      ZipUtil.unzip增加编码容错（issue#I3UZ28@Gitee）
+* 【core   】      Calculator兼容`x`字符作为乘号（issue#3787@Github）
 
 ### 🐞Bug修复
 * 【core   】      修复DateUtil.rangeToList中step小于等于0时无限循环问题（issue#3783@Github）
diff --git a/hutool-core/src/main/java/cn/hutool/core/math/Calculator.java b/hutool-core/src/main/java/cn/hutool/core/math/Calculator.java
index dbda0cfc5..ecaf93515 100644
--- a/hutool-core/src/main/java/cn/hutool/core/math/Calculator.java
+++ b/hutool-core/src/main/java/cn/hutool/core/math/Calculator.java
@@ -1,5 +1,6 @@
 package cn.hutool.core.math;
 
+import cn.hutool.core.util.CharUtil;
 import cn.hutool.core.util.NumberUtil;
 import cn.hutool.core.util.StrUtil;
 
@@ -192,6 +193,9 @@ public class Calculator {
 						arr[i] = '~';
 					}
 				}
+			} else if(CharUtil.equals(arr[i], 'x', true)){
+				// issue#3787 x转换为*
+				arr[i] = '*';
 			}
 		}
 		if (arr[0] == '~' && (arr.length > 1 && arr[1] == '(')) {
diff --git a/hutool-core/src/test/java/cn/hutool/core/math/CalculatorTest.java b/hutool-core/src/test/java/cn/hutool/core/math/CalculatorTest.java
index f1e1a8387..0e561e301 100644
--- a/hutool-core/src/test/java/cn/hutool/core/math/CalculatorTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/math/CalculatorTest.java
@@ -1,8 +1,9 @@
 package cn.hutool.core.math;
 
-import static org.junit.jupiter.api.Assertions.*;
 import org.junit.jupiter.api.Test;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
 public class CalculatorTest {
 
 	@Test
@@ -55,4 +56,14 @@ public class CalculatorTest {
 		final double calcValue = Calculator.conversion("(11+2)12");
 		assertEquals(156D, calcValue, 0.001);
 	}
+
+	@Test
+	void issue3787Test() {
+		final Calculator calculator1 = new Calculator();
+		double result = calculator1.calculate("0+50/100x(1/0.5)");
+		assertEquals(1D, result);
+
+		result = calculator1.calculate("0+50/100X(1/0.5)");
+		assertEquals(1D, result);
+	}
 }