diff --git a/app/Http/Controllers/Api/Admin/ItemManagementApiController.php b/app/Http/Controllers/Api/Admin/ItemManagementApiController.php
index 6ac82b1d..b83d0657 100644
--- a/app/Http/Controllers/Api/Admin/ItemManagementApiController.php
+++ b/app/Http/Controllers/Api/Admin/ItemManagementApiController.php
@@ -75,7 +75,18 @@ public function calculateFormula(Request $request, int $id): JsonResponse
             'MP' => in_array($mp, ['single', 'three']) ? $mp : 'single',
         ];
 
-        $formulaService = new FormulaApiService();
+        // 제품모델/설치타입/마감타입 (입력값이 있으면 전달)
+        if ($request->filled('product_model')) {
+            $variables['product_model'] = $request->input('product_model');
+        }
+        if ($request->filled('installation_type')) {
+            $variables['installation_type'] = $request->input('installation_type');
+        }
+        if ($request->filled('finishing_type')) {
+            $variables['finishing_type'] = $request->input('finishing_type');
+        }
+
+        $formulaService = new FormulaApiService;
         $result = $formulaService->calculateBom(
             $item->code,
             $variables,
diff --git a/resources/views/item-management/index.blade.php b/resources/views/item-management/index.blade.php
index 06fcb13e..6562f566 100644
--- a/resources/views/item-management/index.blade.php
+++ b/resources/views/item-management/index.blade.php
@@ -61,7 +61,7 @@ class="bom-tab px-3 py-1.5 text-xs font-medium rounded-md bg-gray-100 text-gray-
 
             <!-- 수식 산출 입력 폼 (가변사이즈 품목 선택 시에만 표시) -->
             <div id="formula-input-panel" style="display:none;" class="p-4 bg-gray-50 border-b border-gray-200">
-                <div class="flex items-end gap-3">
+                <div class="flex items-end gap-3 flex-wrap">
                     <div>
                         <label class="block text-xs text-gray-500 mb-1">폭 W (mm)</label>
                         <input type="number" id="input-width" value="1000" min="100" max="10000" step="1"
@@ -85,6 +85,36 @@ class="px-2 py-1.5 text-sm border border-gray-300 rounded focus:ring-2 focus:rin
                             <option value="three">삼상(380V)</option>
                         </select>
                     </div>
+                    <div>
+                        <label class="block text-xs text-gray-500 mb-1">제품모델</label>
+                        <select id="input-product-model"
+                                class="px-2 py-1.5 text-sm border border-gray-300 rounded focus:ring-2 focus:ring-blue-500 focus:outline-none">
+                            <option value="KSS01">KSS01</option>
+                            <option value="KSS02">KSS02</option>
+                            <option value="KSE01">KSE01</option>
+                            <option value="KWE01">KWE01</option>
+                            <option value="KTE01">KTE01</option>
+                            <option value="KQTS01">KQTS01</option>
+                            <option value="KDSS01">KDSS01</option>
+                        </select>
+                    </div>
+                    <div>
+                        <label class="block text-xs text-gray-500 mb-1">설치타입</label>
+                        <select id="input-installation-type"
+                                class="px-2 py-1.5 text-sm border border-gray-300 rounded focus:ring-2 focus:ring-blue-500 focus:outline-none">
+                            <option value="벽면형">벽면형</option>
+                            <option value="측면형">측면형</option>
+                            <option value="혼합형">혼합형</option>
+                        </select>
+                    </div>
+                    <div>
+                        <label class="block text-xs text-gray-500 mb-1">마감</label>
+                        <select id="input-finishing-type"
+                                class="px-2 py-1.5 text-sm border border-gray-300 rounded focus:ring-2 focus:ring-blue-500 focus:outline-none">
+                            <option value="SUS">SUS</option>
+                            <option value="EGI">EGI</option>
+                        </select>
+                    </div>
                     <button type="button" id="btn-calculate" onclick="calculateFormula()"
                             class="px-4 py-1.5 text-sm font-medium text-white bg-blue-600 rounded hover:bg-blue-700 transition-colors">
                         산출
@@ -334,6 +364,30 @@ function hideFormulaTab() {
         switchBomTab('static');
     }
 
+    // ── FG 코드 파싱 → 입력폼 자동 세팅 ──
+    // FG-KQTS01-벽면형-SUS → { model: 'KQTS01', installation: '벽면형', finishing: 'SUS' }
+    // 파싱 실패 시 기본값 유지 (추후 FG 코드 형식 변경 대비)
+    function parseFgCode(code) {
+        if (!code) return null;
+        const parts = code.split('-');
+        // FG-{MODEL}-{INSTALLATION}-{FINISHING} 형식인 경우만 파싱
+        if (parts.length >= 4 && parts[0] === 'FG') {
+            return { model: parts[1], installation: parts[2], finishing: parts[3] };
+        }
+        return null;
+    }
+
+    function setSelectValue(selectId, value) {
+        const el = document.getElementById(selectId);
+        if (!el) return;
+        for (let i = 0; i < el.options.length; i++) {
+            if (el.options[i].value === value) {
+                el.selectedIndex = i;
+                return;
+            }
+        }
+    }
+
     // ── 상세 로드 완료 후 FG 품목 감지 → 수식 산출 탭 표시 ──
     document.body.addEventListener('htmx:afterSwap', function(event) {
         if (event.detail.target.id === 'item-detail') {
@@ -347,6 +401,13 @@ function hideFormulaTab() {
                 currentItemId = meta.dataset.itemId;
                 currentItemCode = meta.dataset.itemCode;
                 if (meta.dataset.itemType === 'FG') {
+                    // FG 코드에서 모델/설치타입/마감타입 파싱하여 입력폼 자동 세팅
+                    const parsed = parseFgCode(currentItemCode);
+                    if (parsed) {
+                        setSelectValue('input-product-model', parsed.model);
+                        setSelectValue('input-installation-type', parsed.installation);
+                        setSelectValue('input-finishing-type', parsed.finishing);
+                    }
                     showFormulaTab();
                     calculateFormula();
                 } else {
@@ -364,6 +425,9 @@ function hideFormulaTab() {
         const height = parseInt(document.getElementById('input-height').value) || 1000;
         const qty = parseInt(document.getElementById('input-qty').value) || 1;
         const mp = document.getElementById('input-mp').value || 'single';
+        const productModel = document.getElementById('input-product-model').value || 'KSS01';
+        const installationType = document.getElementById('input-installation-type').value || '벽면형';
+        const finishingType = document.getElementById('input-finishing-type').value || 'SUS';
 
         if (width < 100 || width > 10000 || height < 100 || height > 10000) {
             alert('폭과 높이는 100~10000 범위로 입력하세요.');
@@ -380,7 +444,7 @@ function hideFormulaTab() {
                 'Accept': 'application/json',
                 'X-CSRF-TOKEN': csrfToken,
             },
-            body: JSON.stringify({ width, height, qty, mp }),
+            body: JSON.stringify({ width, height, qty, mp, product_model: productModel, installation_type: installationType, finishing_type: finishingType }),
         })
         .then(res => {
             if (!res.ok) {