diff --git a/addons/web/static/src/js/fields/basic_fields.js b/addons/web/static/src/js/fields/basic_fields.js
index e823278463a..09406b43711 100644
--- a/addons/web/static/src/js/fields/basic_fields.js
+++ b/addons/web/static/src/js/fields/basic_fields.js
@@ -568,6 +568,7 @@ var FieldMonetary = InputField.extend({
 
         this.formatOptions.currency = this.currency;
         this.formatOptions.digits = [16, 2];
+        this.formatOptions.field_digits = this.nodeOptions.field_digits;
     },
 
     //--------------------------------------------------------------------------
diff --git a/addons/web/static/src/js/fields/field_utils.js b/addons/web/static/src/js/fields/field_utils.js
index 932ea997e6a..6a6ad5a7a98 100644
--- a/addons/web/static/src/js/fields/field_utils.js
+++ b/addons/web/static/src/js/fields/field_utils.js
@@ -286,8 +286,12 @@ function formatMonetary(value, field, options) {
         currency = session.get_currency(currency_id);
     }
 
+    var digits = (currency && currency.digits) || options.digits;
+    if (options.field_digits === true) {
+        digits = field.digits || digits;
+    }
     var formatted_value = formatFloat(value, field, {
-        digits:  (currency && currency.digits) || options.digits,
+        digits: digits,
     });
 
     if (!currency || options.noSymbol) {
diff --git a/addons/web/static/tests/fields/basic_fields_tests.js b/addons/web/static/tests/fields/basic_fields_tests.js
index 6fc104246d6..9ea423250e4 100644
--- a/addons/web/static/tests/fields/basic_fields_tests.js
+++ b/addons/web/static/tests/fields/basic_fields_tests.js
@@ -587,6 +587,52 @@ QUnit.module('basic_fields', {
         form.destroy();
     });
 
+    QUnit.test('float field with monetary widget and decimal precision', function (assert) {
+        assert.expect(5);
+
+        this.data.partner.records = [{
+            id: 1,
+            qux: -8.89859,
+            currency_id: 1,
+        }]
+        var form = createView({
+            View: FormView,
+            model: 'partner',
+            data: this.data,
+            arch:'<form string="Partners">' +
+                    '<sheet>' +
+                        '<field name="qux" widget="monetary" options="{\'field_digits\': True}"/>' +
+                        '<field name="currency_id" invisible="1"/>' +
+                    '</sheet>' +
+                '</form>',
+            res_id: 1,
+            session: {
+                currencies: _.indexBy(this.data.currency.records, 'id'),
+            },
+        });
+
+        // Non-breaking space between the currency and the amount
+        assert.strictEqual(form.$('.o_field_widget').first().text(), '$\u00a0-8.9',
+            'The value should be displayed properly.');
+
+        form.$buttons.find('.o_form_button_edit').click();
+        assert.strictEqual(form.$('input').val(), '-8.9',
+            'The input should be rendered without the currency symbol.');
+        assert.strictEqual(form.$('input').parent().children().first().text(), '$',
+            'The input should be preceded by a span containing the currency symbol.');
+
+        form.$('input').val('109.2458938598598').trigger('input');
+        assert.strictEqual(form.$('input').val(), '109.2458938598598',
+            'The value should not be formated yet.');
+
+        form.$buttons.find('.o_form_button_save').click();
+        // Non-breaking space between the currency and the amount
+        assert.strictEqual(form.$('.o_field_widget').first().text(), '$\u00a0109.2',
+            'The new value should be rounded properly.');
+
+        form.destroy();
+    });
+
     QUnit.module('FieldEmail');
 
     QUnit.test('email field in form view', function (assert) {