vuetifyjs · J-Sek · Sep 29, 2025
diff --git a/packages/api-generator/src/locale/en/VNumberInput.json b/packages/api-generator/src/locale/en/VNumberInput.json
@@ -2,6 +2,8 @@
   "props": {
     "controlVariant": "The color of the control. It defaults to the value of `variant` prop.",
     "decimalSeparator": "Expects single character to be used as decimal separator.",
+    "grouping ": "Enables grouping using current locale or specific character passed to `group-separator`.",
+    "group-separator ": "Expects single character to be used for grouping digits in large numbers.",
     "hideInput": "Hide the input field.",
     "inset": "Applies an indentation to the dividers used in the stepper buttons.",
     "max": "Specifies the maximum allowable value for the input.",

diff --git a/packages/docs/src/data/new-in.json b/packages/docs/src/data/new-in.json
@@ -178,7 +178,9 @@
   },
   "VNumberInput": {
     "props": {
-      "autocomplete": "3.10.0"
+      "autocomplete": "3.10.0",
+      "grouping": "3.11.0",
+      "groupingSeparator": "3.11.0"
     }
   },
   "VOverlay": {

diff --git a/packages/vuetify/src/components/VNumberInput/VNumberInput.tsx b/packages/vuetify/src/components/VNumberInput/VNumberInput.tsx
@@ -68,6 +68,14 @@ const makeVNumberInputProps = propsFactory({
     type: String,
     validator: (v: any) => !v || v.length === 1,
   },
+  grouping: {
+    type: [Boolean, String] as PropType<'always' | 'auto' | 'min2' | boolean>,
+    default: false,
+  },
+  groupSeparator: {
+    type: String,
+    validator: (v: any) => !v || v.length === 1,
+  },
 
   ...omit(makeVTextFieldProps(), ['modelValue', 'validationValue']),
 }, 'VNumberInput')
@@ -95,32 +103,23 @@ export const VNumberInput = genericComponent<VNumberInputSlots>()({
 
     const isFocused = shallowRef(props.focused)
 
-    const { decimalSeparator: decimalSeparatorFromLocale } = useLocale()
+    const {
+      current: locale,
+      decimalSeparator: decimalSeparatorFromLocale,
+      numericGroupSeparator: numericGroupSeparatorFromLocale,
+    } = useLocale()
     const decimalSeparator = computed(() => props.decimalSeparator?.[0] || decimalSeparatorFromLocale.value)
-
-    function correctPrecision (val: number, precision = props.precision, trim = true) {
-      const fixed = precision == null
-        ? String(val)
-        : val.toFixed(precision)
-
-      if (isFocused.value && trim) {
-        return Number(fixed).toString() // trim zeros
-          .replace('.', decimalSeparator.value)
-      }
-
-      if (props.minFractionDigits === null || (precision !== null && precision < props.minFractionDigits)) {
-        return fixed.replace('.', decimalSeparator.value)
-      }
-
-      let [baseDigits, fractionDigits] = fixed.split('.')
-
-      fractionDigits = (fractionDigits ?? '').padEnd(props.minFractionDigits, '0')
-        .replace(new RegExp(`(?<=\\d{${props.minFractionDigits}})0+$`, 'g'), '')
-
-      return [
-        baseDigits,
-        fractionDigits,
-      ].filter(Boolean).join(decimalSeparator.value)
+    const groupSeparator = computed(() => props.groupSeparator?.[0] || numericGroupSeparatorFromLocale.value)
+
+    function correctPrecision (val: number, precision?: number | null, trim = true) {
+      precision ??= isFocused.value && trim ? undefined : props.precision ?? undefined
+      return new Intl.NumberFormat(locale.value, {
+        minimumFractionDigits: props.minFractionDigits ?? precision,
+        maximumFractionDigits: precision,
+        useGrouping: props.grouping,
+      }).format(val)
+        .replaceAll(numericGroupSeparatorFromLocale.value, groupSeparator.value)
+        .replace(decimalSeparatorFromLocale.value, decimalSeparator.value)
     }
 
     const model = useProxiedModel(props, 'modelValue', null,
@@ -154,7 +153,10 @@ export const VNumberInput = genericComponent<VNumberInputSlots>()({
           _inputText.value = null
           return
         }
-        const parsedValue = Number(val.replace(decimalSeparator.value, '.'))
+        const parsedValue = Number(val
+          .replaceAll(groupSeparator.value, '')
+          .replace(decimalSeparator.value, '.')
+        )
         if (!isNaN(parsedValue) && parsedValue <= props.max && parsedValue >= props.min) {
           model.value = parsedValue
           _inputText.value = val
@@ -315,7 +317,11 @@ export const VNumberInput = genericComponent<VNumberInputSlots>()({
       if (controlsDisabled.value) return
       if (!vTextFieldRef.value) return
       const actualText = vTextFieldRef.value.value
-      const parsedValue = Number(actualText.replace(decimalSeparator.value, '.'))
+      const parsedValue = Number(actualText
+        .replaceAll(groupSeparator.value, '')
+        .replace(decimalSeparator.value, '.')
+      )
+      console.log('parsed value 2:', actualText, groupSeparator.value, parsedValue)
       if (actualText && !isNaN(parsedValue)) {
         inputText.value = correctPrecision(clamp(parsedValue, props.min, props.max))
       } else {

diff --git a/packages/vuetify/src/composables/locale.ts b/packages/vuetify/src/composables/locale.ts
@@ -11,6 +11,7 @@ export interface LocaleMessages {
 
 export interface LocaleOptions {
   decimalSeparator?: string
+  numericGroupSeparator?: string
   messages?: LocaleMessages
   locale?: string
   fallback?: string
@@ -20,6 +21,7 @@ export interface LocaleOptions {
 export interface LocaleInstance {
   name: string
   decimalSeparator: ShallowRef<string>
+  numericGroupSeparator: ShallowRef<string>
   messages: Ref<LocaleMessages>
   current: Ref<string>
   fallback: Ref<string>

diff --git a/packages/vuetify/src/locale/adapters/vuetify.ts b/packages/vuetify/src/locale/adapters/vuetify.ts
@@ -68,6 +68,11 @@ function inferDecimalSeparator (current: Ref<string>, fallback: Ref<string>) {
   return format(0.1).includes(',') ? ',' : '.'
 }
 
+function inferNumericGroupSeparator (current: Ref<string>, fallback: Ref<string>) {
+  const format = createNumberFunction(current, fallback)
+  return format(10000).at(2)!
+}
+
 function useProvided <T> (props: any, prop: string, provided: Ref<T>) {
   const internal = useProxiedModel(props, prop, props[prop] ?? provided.value)
 
@@ -95,6 +100,7 @@ function createProvideFunction (state: { current: Ref<string>, fallback: Ref<str
       fallback,
       messages,
       decimalSeparator: toRef(() => inferDecimalSeparator(current, fallback)),
+      numericGroupSeparator: toRef(() => inferNumericGroupSeparator(current, fallback)),
       t: createTranslateFunction(current, fallback, messages),
       n: createNumberFunction(current, fallback),
       provide: createProvideFunction({ current, fallback, messages }),
@@ -113,6 +119,7 @@ export function createVuetifyAdapter (options?: LocaleOptions): LocaleInstance {
     fallback,
     messages,
     decimalSeparator: toRef(() => options?.decimalSeparator ?? inferDecimalSeparator(current, fallback)),
+    numericGroupSeparator: toRef(() => options?.numericGroupSeparator ?? inferNumericGroupSeparator(current, fallback)),
     t: createTranslateFunction(current, fallback, messages),
     n: createNumberFunction(current, fallback),
     provide: createProvideFunction({ current, fallback, messages }),