diff --git a/addons/web/static/src/views/fields/parsers.js b/addons/web/static/src/views/fields/parsers.js
index 32238b9e4cf..2fe442b27e3 100644
--- a/addons/web/static/src/views/fields/parsers.js
+++ b/addons/web/static/src/views/fields/parsers.js
@@ -72,6 +72,15 @@ export function parseFloat(value) {
         thousandsSep: thousandsSepRegex,
         decimalPoint: decimalPointRegex,
     });
+    if (isNaN(parsed)) {
+        parsed = parseNumber(value, {
+            thousandsSep: ",",
+            decimalPoint: ".",
+        });
+        if (isNaN(parsed)) {
+            throw new InvalidNumberError(`"${value}" is not a correct number`);
+        }
+    }
     return parsed;
 }
 
@@ -114,6 +123,16 @@ export function parseInteger(value) {
         decimalPoint: decimalPointRegex,
         truncate: true,
     });
+    if (!Number.isInteger(parsed)) {
+        parsed = parseNumber(value, {
+            thousandsSep: ",",
+            decimalPoint: ".",
+            truncate: true,
+        });
+        if (!Number.isInteger(parsed)) {
+            throw new InvalidNumberError(`"${value}" is not a correct number`);
+        }
+    }
     return parsed;
 }
 
diff --git a/addons/web/static/tests/search/custom_filter_item_tests.js b/addons/web/static/tests/search/custom_filter_item_tests.js
index 32355bf3890..694683ebf5b 100644
--- a/addons/web/static/tests/search/custom_filter_item_tests.js
+++ b/addons/web/static/tests/search/custom_filter_item_tests.js
@@ -622,12 +622,12 @@ QUnit.module("Search", (hooks) => {
         assert.strictEqual(floatInput.value, "4,2");
 
         await editConditionValue(target, 0, "4,2,");
-        assert.strictEqual(floatInput.value, "4,2");
+        assert.strictEqual(floatInput.value, "42,0"); // because of the en localization fallback in parsers.
 
         await editConditionValue(target, 0, "DefinitelyValidFloat");
 
         // The input here is a string, resulting in a parsing error instead of 0
-        assert.strictEqual(floatInput.value, "4,2");
+        assert.strictEqual(floatInput.value, "42,0");
     });
 
     QUnit.test("add custom filter with multiple values", async function (assert) {
diff --git a/addons/web/static/tests/views/fields/parsers_tests.js b/addons/web/static/tests/views/fields/parsers_tests.js
index 530d1ec67d6..2662fb02db7 100644
--- a/addons/web/static/tests/views/fields/parsers_tests.js
+++ b/addons/web/static/tests/views/fields/parsers_tests.js
@@ -127,4 +127,14 @@ QUnit.module("Fields", (hooks) => {
         assert.throws(() => parseMonetary("1$\u00a01", { currencyId: 1 }));
         assert.throws(() => parseMonetary("$\u00a012.00\u00a034", { currencyId: 3 }));
     });
+
+    QUnit.test("parsers fallback on english localisation", function (assert) {
+        patchWithCleanup(localization, {
+            decimalPoint: ",",
+            thousandsSep: ".",
+        });
+
+        assert.strictEqual(parseInteger("1,000,000"), 1000000);
+        assert.strictEqual(parseFloat("1,000,000.50"), 1000000.5);
+    });
 });