diff --git a/addons/web/static/src/views/fields/parsers.js b/addons/web/static/src/views/fields/parsers.js
index 6a5eadbbf38..ec986f66535 100644
--- a/addons/web/static/src/views/fields/parsers.js
+++ b/addons/web/static/src/views/fields/parsers.js
@@ -38,16 +38,16 @@ function evaluateMathematicalExpression(expr, context = {}) {
  * @returns {number}
  */
 function parseNumber(value, options = {}) {
-    // a number can have the thousand separator multiple times. ex: 1,000,000.00
-    value = value.replaceAll(new RegExp(escapeRegExp(options.thousandsSep), "g") || ",", "");
-    // a number only have one decimal separator
-    value = value.replace(new RegExp(escapeRegExp(options.decimalPoint), "g") || ".", ".");
-
     if (value.startsWith("=")) {
         value = evaluateMathematicalExpression(value.substring(1));
         if (options.truncate) {
             value = Math.trunc(value);
         }
+    } else {
+        // a number can have the thousand separator multiple times. ex: 1,000,000.00
+        value = value.replaceAll(new RegExp(escapeRegExp(options.thousandsSep), "g") || ",", "");
+        // a number only have one decimal separator
+        value = value.replace(new RegExp(escapeRegExp(options.decimalPoint), "g") || ".", ".");
     }
 
     return Number(value);
diff --git a/addons/web/static/tests/views/fields/parsers_tests.js b/addons/web/static/tests/views/fields/parsers_tests.js
index 95710685404..ba1c2487c52 100644
--- a/addons/web/static/tests/views/fields/parsers_tests.js
+++ b/addons/web/static/tests/views/fields/parsers_tests.js
@@ -40,6 +40,12 @@ QUnit.module("Fields", (hooks) => {
         patchWithCleanup(localization, { decimalPoint: ",", thousandsSep: "." });
         assert.strictEqual(parseFloat("1.234,567"), 1234.567);
 
+        // Can evaluate expression from locale with decimal point different from ".".
+        assert.strictEqual(parseFloat("=1.000,1 + 2.000,2"), 3000.3);
+        assert.strictEqual(parseFloat("=1.000,00 + 11.121,00"), 12121);
+        assert.strictEqual(parseFloat("=1000,00 + 11122,00"), 12122);
+        assert.strictEqual(parseFloat("=1000 + 11123"), 12123);
+
         patchWithCleanup(localization, { decimalPoint: ",", thousandsSep: false });
         assert.strictEqual(parseFloat("1234,567"), 1234.567);
     });