diff --git a/netbox/extras/forms/filtersets.py b/netbox/extras/forms/filtersets.py
index 27881f17a..bd502029e 100644
--- a/netbox/extras/forms/filtersets.py
+++ b/netbox/extras/forms/filtersets.py
@@ -102,11 +102,11 @@ class CustomFieldFilterForm(SavedFiltersMixin, FilterForm):
             choices=BOOLEAN_WITH_BLANK_CHOICES
         )
     )
-    validation_minimum = forms.IntegerField(
+    validation_minimum = forms.DecimalField(
         label=_('Minimum value'),
         required=False
     )
-    validation_maximum = forms.IntegerField(
+    validation_maximum = forms.DecimalField(
         label=_('Maximum value'),
         required=False
     )
diff --git a/netbox/extras/migrations/0130_update_custom_fields_numeric_bounds.py b/netbox/extras/migrations/0130_update_custom_fields_numeric_bounds.py
new file mode 100644
index 000000000..dcc225617
--- /dev/null
+++ b/netbox/extras/migrations/0130_update_custom_fields_numeric_bounds.py
@@ -0,0 +1,23 @@
+# Generated by Django 5.2.4 on 2025-08-28 19:31
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('extras', '0129_fix_script_paths'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='customfield',
+            name='validation_maximum',
+            field=models.DecimalField(blank=True, decimal_places=2, max_digits=21, null=True),
+        ),
+        migrations.AlterField(
+            model_name='customfield',
+            name='validation_minimum',
+            field=models.DecimalField(blank=True, decimal_places=2, max_digits=21, null=True),
+        ),
+    ]
diff --git a/netbox/extras/models/customfields.py b/netbox/extras/models/customfields.py
index 19d9e1ded..78b30e9ab 100644
--- a/netbox/extras/models/customfields.py
+++ b/netbox/extras/models/customfields.py
@@ -174,13 +174,17 @@ class CustomField(CloningMixin, ExportTemplatesMixin, ChangeLoggedModel):
         verbose_name=_('display weight'),
         help_text=_('Fields with higher weights appear lower in a form.')
     )
-    validation_minimum = models.BigIntegerField(
+    validation_minimum = models.DecimalField(
+        max_digits=21,
+        decimal_places=2,
         blank=True,
         null=True,
         verbose_name=_('minimum value'),
         help_text=_('Minimum allowed value (for numeric fields)')
     )
-    validation_maximum = models.BigIntegerField(
+    validation_maximum = models.DecimalField(
+        max_digits=21,
+        decimal_places=2,
         blank=True,
         null=True,
         verbose_name=_('maximum value'),