diff --git a/resources/views/admin/inventory/stock-entries/_form.blade.php b/resources/views/admin/inventory/stock-entries/_form.blade.php
index 9dccbb1..e3fefc1 100644
--- a/resources/views/admin/inventory/stock-entries/_form.blade.php
+++ b/resources/views/admin/inventory/stock-entries/_form.blade.php
@@ -126,7 +126,8 @@
             </select>
         </div>
     </div>
-    <small class="text-muted" id="ordered-quantity-hint">{{ __('Bei Rohstoff in Gramm, bei Verpackung in Stück.') }}</small>
+    <small class="text-muted d-block" id="ordered-quantity-hint">{{ __('Bei Rohstoff in Gramm, bei Verpackung in Stück.') }}</small>
+    <small class="d-block font-weight-bold text-body mt-1" id="ordered-quantity-preview" style="display:none;"></small>
     @error('ordered_quantity')
         <div class="invalid-feedback d-block">{{ $message }}</div>
     @enderror
diff --git a/resources/views/admin/inventory/stock-entries/_scripts.blade.php b/resources/views/admin/inventory/stock-entries/_scripts.blade.php
index 9e817b1..0024816 100644
--- a/resources/views/admin/inventory/stock-entries/_scripts.blade.php
+++ b/resources/views/admin/inventory/stock-entries/_scripts.blade.php
@@ -88,14 +88,19 @@
             }
 
             var $hint = $('#ordered-quantity-hint');
+            var $preview = $('#ordered-quantity-preview');
+            $preview.hide().text('');
             if (!isIng) {
                 $hint.text('{{ __('Bei Verpackung in Stück.') }}');
                 return;
             }
             if ($('#ordered_unit').val() === 'ml' && hasDensity) {
+                $hint.text('{{ __('Erfassung in ml — der Bestand wird über die Dichte in Gramm gebucht.') }}');
                 var ml = parseNumber($('#ordered_quantity').val());
-                var g = ml != null ? formatQuantity(ml * density) : '?';
-                $hint.text('{{ __('Erfassung in ml — entspricht ca.') }} ' + g + ' {{ __('g (Dichte') }} ' + formatDensity(density) + ' g/ml).');
+                if (ml != null && ml > 0) {
+                    // AP-42: Live-Vorschau der ml→g-Umrechnung direkt am Mengenfeld.
+                    $preview.text(formatQuantity(ml) + ' ml × ' + formatDensity(density) + ' g/ml = ' + formatQuantity(ml * density) + ' g').show();
+                }
             } else if (hasDensity) {
                 $hint.text('{{ __('In Gramm — oder Einheit auf ml stellen (Dichte hinterlegt).') }}');
             } else {
diff --git a/resources/views/admin/inventory/stock-entries/show.blade.php b/resources/views/admin/inventory/stock-entries/show.blade.php
index ef5cc7f..da4be6a 100644
--- a/resources/views/admin/inventory/stock-entries/show.blade.php
+++ b/resources/views/admin/inventory/stock-entries/show.blade.php
@@ -203,7 +203,7 @@
                         <input type="text" name="received_quantity" id="received_quantity" required
                                class="form-control @error('received_quantity') is-invalid @enderror"
                                value="{{ old('received_quantity', $receiveDefault) }}">
-                        <small class="text-muted">
+                        <small class="text-muted d-block">
                             @if($receiveIsMl)
                                 {{ __('Angabe in ml — Umrechnung in Gramm über die Dichte') }} ({{ \App\Services\Util::formatNumber($model->density_used) }} g/ml)
                             @elseif($model->unit === 'gram')
@@ -212,6 +212,9 @@
                                 {{ __('Angabe in Stück') }}
                             @endif
                         </small>
+                        @if($receiveIsMl)
+                            <small class="d-block font-weight-bold text-body mt-1" id="received-quantity-preview" style="display:none;"></small>
+                        @endif
                         @error('received_quantity')
                         <div class="invalid-feedback">{{ $message }}</div>
                         @enderror
@@ -266,6 +269,28 @@
     @section('scripts')
         <script>
             (function ($) {
+                // AP-42: Live-Vorschau der ml→g-Umrechnung auch beim Buchen des Eingangs.
+                var receiveDensity = @json($model->purchase_unit === 'ml' && $model->density_used ? (float) $model->density_used : null);
+                if (receiveDensity) {
+                    var $rq = $('#received_quantity');
+                    var $rqPreview = $('#received-quantity-preview');
+                    var fmtQ = function (v) {
+                        return Number(v).toLocaleString('de-DE', {minimumFractionDigits: 2, maximumFractionDigits: 3, useGrouping: false});
+                    };
+                    var renderReceivePreview = function () {
+                        var raw = String($rq.val() || '').trim();
+                        var norm = /^-?(\d+\.\d{1,2}|0\.\d{3})$/.test(raw) ? raw : raw.replace(/\./g, '').replace(',', '.');
+                        var ml = parseFloat(norm);
+                        if (!raw || isNaN(ml) || ml <= 0) {
+                            $rqPreview.hide().text('');
+                            return;
+                        }
+                        $rqPreview.text(fmtQ(ml) + ' ml × ' + receiveDensity.toLocaleString('de-DE', {minimumFractionDigits: 2, maximumFractionDigits: 4, useGrouping: false}) + ' g/ml = ' + fmtQ(ml * receiveDensity) + ' g').show();
+                    };
+                    $rq.on('input change', renderReceivePreview);
+                    renderReceivePreview();
+                }
+
                 // AP-27: Beim Eintippen der Chargennummer prüfen, ob die Charge schon im Haus ist.
                 var checkUrl = @json(route('admin.inventory.api.stock-entries.batch-check'));
                 var ingredientId = @json($model->ingredient_id);