diff --git a/M01_MasterData/EasyCalc/M01_EasyCalc_Entry.ts b/M01_MasterData/EasyCalc/M01_EasyCalc_Entry.ts
index 757f42998..79366262c 100644
--- a/M01_MasterData/EasyCalc/M01_EasyCalc_Entry.ts
+++ b/M01_MasterData/EasyCalc/M01_EasyCalc_Entry.ts
@@ -18,7 +18,7 @@ import {
   showToast,
 } from "@ui/ui_template_elements";
 import { openModal } from "@ui/ui_template_modal";
-import type { CalcAnswer } from "../M01_MasterData_UI_Logic_Api";
+import type { CalcAnswer, LogicInput } from "../M01_MasterData_UI_Logic_Api";
 import { formatMoney } from "../M01_MasterData_UI_Logic_Money";
 import {
   calcLater,
@@ -124,6 +124,23 @@ const blocksSave = (c: EasyCard): boolean =>
   !c.name.trim() ||
   (c.qtyFormula === null && !(c.qty !== null && Number.isFinite(c.qty) && c.qty > 0));
 
+/** 카드를 넣어 새로 생긴 설계 값의 시험값 — 서버 자동값(`master_auto.values`)과 같은 규칙:
+ * 고르기 = 첫째 · 범위 = 낮은 끝 · 그 밖 숫자 0 · 값이 「원」 인 가격 값은 비워 둠(0 원처럼 안 보이게) */
+function fillNew(
+  inputs: LogicInput[],
+  trial: Record<string, unknown>,
+  known: Set<string>,
+): Record<string, unknown> {
+  const out = { ...trial };
+  for (const spec of inputs) {
+    if (known.has(spec.이름)) continue;
+    known.add(spec.이름);
+    if (out[spec.이름] !== undefined || String(spec.단위 ?? "").includes("원")) continue;
+    out[spec.이름] = spec.고르기?.length ? spec.고르기[0] : (spec.범위?.[0] ?? 0);
+  }
+  return out;
+}
+
 /** 「추가」 옆에 놓는 단추 — 누르면 큰 창 */
 export function createEasyCalcButton(): HTMLButtonElement {
   return createButton({ label: te("Open"), variant: "filled", onClick: openEasyCalc });
@@ -293,6 +310,8 @@ function openEasyCalc(): void {
     const cardsHost = el("div", { className: "m01-easycalc__cards" });
     const sheetHost = el("div");
     let trialShape = "";
+    /** 연 때 있던 설계 값 — 서버 자동값을 그대로 둠 · 이 밖에 새로 생긴 값만 채움 */
+    const known = new Set(doc.inputs.map((i) => i.이름));
 
     const name = createInputField({
       label: te("Name"),
@@ -360,6 +379,7 @@ function openEasyCalc(): void {
       const shape = JSON.stringify(doc.inputs);
       if (shape !== trialShape) {
         trialShape = shape;
+        trial = fillNew(doc.inputs, trial, known);
         renderTrialStrip(trialHost, doc.inputs, trial, (next) => {
           trial = next;
           calc();