diff --git a/M02_MasterTemplete/CostFlow/M02_CF_Diagram.ts b/M02_MasterTemplete/CostFlow/M02_CF_Diagram.ts
index e4febfee2..5ba3662b6 100644
--- a/M02_MasterTemplete/CostFlow/M02_CF_Diagram.ts
+++ b/M02_MasterTemplete/CostFlow/M02_CF_Diagram.ts
@@ -93,29 +93,9 @@ export interface DiagramOpts {
 
 /* ── 알약 · 자리(DOM 없음) ─────────────────────────────────────────── */
 
-/** 알약 — Model 이 아직이면 상자 칸에서 바로 뽑음 */
+/** 알약 — Model 의 받는 · 내보내는 알약 */
 export function pillsOf(box: CfBox): { ins: CfPill[]; outs: CfPill[] } {
-  try {
-    return { ins: portsIn(box), outs: portsOut(box) };
-  } catch {
-    if (box.kind === "input") {
-      const inp = box.input;
-      const outs = [
-        ...(inp?.elements ?? []).map((e) => ({ name: e.name, unit: e.unit })),
-        ...(inp?.table ? [{ name: "표", unit: "-" }] : []),
-        ...(inp?.variables ?? []).map((v) => ({ name: v.name, unit: v.unit })),
-      ];
-      return { ins: [], outs };
-    }
-    if (box.kind === "function") {
-      const f = box.func;
-      return {
-        ins: (f?.inputs ?? []).map((p) => ({ name: p.port, unit: "-" })),
-        outs: f ? [{ name: f.output.name, unit: f.output.unit }] : [],
-      };
-    }
-    return { ins: [{ name: "값", unit: box.unit }], outs: [] };
-  }
+  return { ins: portsIn(box), outs: portsOut(box) };
 }
 
 /** 떨군 자리 → 받을 끝 · 상자에 떨구면 같은 이름 알약(받는 알약이 하나면 그것) · 못 정하면 까닭 */
@@ -170,7 +150,10 @@ export function arrange(
   return out;
 }
 
-/** 모두 보이게 맞춤 — 상자 둘레 → 확대 · 판 자리 */
+/** 저절로 맞출 때 가장 작은 확대 — 알약 글이 너무 작아지지 않게(더 줄이기는 축소 단추로) */
+export const FIT_MIN = 0.9;
+
+/** 모두 보이게 맞춤 — 상자 둘레 → 확대 · 판 자리 · FIT_MIN 아래로 안 내림(넘치면 왼쪽 위부터 보임) */
 export function fitView(
   rects: { x: number; y: number; w: number; h: number }[],
   view: { w: number; h: number },
@@ -181,12 +164,11 @@ export function fitView(
   const y0 = Math.min(...rects.map((r) => r.y)) - pad;
   const x1 = Math.max(...rects.map((r) => r.x + r.w)) + pad;
   const y1 = Math.max(...rects.map((r) => r.y + r.h)) + pad;
-  const zoom = clampZoom(Math.min(view.w / (x1 - x0), view.h / (y1 - y0), 1.5));
-  return {
-    zoom,
-    panX: (view.w - (x1 - x0) * zoom) / 2 - x0 * zoom,
-    panY: (view.h - (y1 - y0) * zoom) / 2 - y0 * zoom,
-  };
+  const zoom = clampZoom(Math.max(FIT_MIN, Math.min(view.w / (x1 - x0), view.h / (y1 - y0), 1.5)));
+  /** 남으면 가운데 · 넘치면 왼쪽(위) 끝부터 */
+  const place = (size: number, from: number, to: number): number =>
+    Math.max(0, (size - (to - from) * zoom) / 2) - from * zoom;
+  return { zoom, panX: place(view.w, x0, x1), panY: place(view.h, y0, y1) };
 }
 
 const clampZoom = (z: number): number => Math.min(2, Math.max(0.25, +z.toFixed(3)));
@@ -208,10 +190,15 @@ interface HostState {
 const states = new WeakMap<HTMLElement, HostState>();
 const SVG = "http://www.w3.org/2000/svg";
 
-const showValue = (v: unknown): string => {
+/** 알약 값 글 — 수는 천 단위 쉼표 · 소수 셋째 자리까지(끝 0 지움) · 표는 「· ○줄」 · 글은 그대로 */
+export const showValue = (v: unknown): string => {
   if (v === null || v === undefined || v === "") return "";
   if (typeof v === "number")
-    return Number.isInteger(v) ? v.toLocaleString() : String(+v.toFixed(4));
+    return Number.isFinite(v) ? v.toLocaleString("ko-KR", { maximumFractionDigits: 3 }) : "";
+  if (Array.isArray(v)) {
+    const head = Array.isArray(v[0]) && v[0].every((c) => typeof c === "string") ? 1 : 0;
+    return `· ${Math.max(0, v.length - head).toLocaleString("ko-KR")}줄`;
+  }
   return String(v).slice(0, 12);
 };
 
diff --git a/M02_MasterTemplete/CostFlow/M02_CF_InputPanel.ts b/M02_MasterTemplete/CostFlow/M02_CF_InputPanel.ts
index 168a14005..bcaed88ba 100644
--- a/M02_MasterTemplete/CostFlow/M02_CF_InputPanel.ts
+++ b/M02_MasterTemplete/CostFlow/M02_CF_InputPanel.ts
@@ -31,6 +31,7 @@ import {
   elementOf,
   machineFields,
   queryOf,
+  reconcileUnit,
   removeElement,
   setKind,
   valueOf,
@@ -143,6 +144,9 @@ export function renderInputPanel(
     host.replaceChildren(el("p", { className: "m02-cfip__muted", text: t("NotInput") }));
     return;
   }
+  // 상자 단위가 고른 요소 · 변수 단위와 다르면(견본 등) 맞춰 다시 그림 — 맞으면 바로 지나감
+  const fixed = reconcileUnit(lg, boxId);
+  if (fixed !== lg) return on.change(fixed);
   const input = box.input ?? { mode: "variable" as const, elements: [], variables: [] };
   const kind: CfGroup | "변수" = input.mode === "variable" ? "변수" : (input.group ?? "인력");
   const body = el("div", { className: "m02-cfip__body" });
diff --git a/M02_MasterTemplete/CostFlow/M02_CF_InputPanel_Build.ts b/M02_MasterTemplete/CostFlow/M02_CF_InputPanel_Build.ts
index ce2f0799b..1e392059b 100644
--- a/M02_MasterTemplete/CostFlow/M02_CF_InputPanel_Build.ts
+++ b/M02_MasterTemplete/CostFlow/M02_CF_InputPanel_Build.ts
@@ -282,3 +282,13 @@ export function removeVariable(lg: CfLogic, id: string, name: string, pills?: Pi
     pills,
   );
 }
+
+/** 상자 단위를 요소 · 변수 단위에 맞춤 — 이미 맞으면 받은 것 그대로(견본처럼 단위가 안 맞게 저장된 상자를 열 때 바로잡음) */
+export function reconcileUnit(lg: CfLogic, id: string): CfLogic {
+  const box = lg.boxes.find((b) => b.id === id);
+  if (!box?.input) return lg;
+  const want = unitOfInput(box.input);
+  return box.unit === want
+    ? lg
+    : { ...lg, boxes: lg.boxes.map((b) => (b.id === id ? { ...b, unit: want } : b)) };
+}
diff --git a/M02_MasterTemplete/CostFlow/M02_CF_Summary.ts b/M02_MasterTemplete/CostFlow/M02_CF_Summary.ts
index f0cfb9284..94164b86b 100644
--- a/M02_MasterTemplete/CostFlow/M02_CF_Summary.ts
+++ b/M02_MasterTemplete/CostFlow/M02_CF_Summary.ts
@@ -9,7 +9,7 @@
 import { currentLanguageIndex } from "@ui/ui_template_locale";
 import { createSelectField, el } from "@ui/ui_template_elements";
 import { formatMoney } from "../../M01_MasterData/M01_MasterData_UI_Logic_Money";
-import { checkLogic, type CfEvalResult } from "./M02_CF_Eval";
+import { checkLogic, type CfEvalResult, type CfValues } from "./M02_CF_Eval";
 import type { CfBox, CfLogic, CfVariable } from "./M02_CF_Model";
 import { showValue } from "./M02_CF_OutputPanel";
 import "./M02_CF_Summary.css";
@@ -109,12 +109,13 @@ function sampleField(
   return el("label", { className: "m01-cfsum__field", children: [label, control] });
 }
 
-/** 원가 합계 칸 — result = 화면 계산 결과 · on 이 있으면 예시값을 바꿀 수 있음 */
+/** 원가 합계 칸 — result = 화면 계산 결과 · on 이 있으면 예시값을 바꿀 수 있음 · opts.values = 받은 입력 값(검사가 씀) */
 export function renderSummary(
   host: HTMLElement,
   lg: CfLogic,
   result: CfEvalResult,
   on?: { change(lg: CfLogic): void },
+  opts?: { values?: CfValues },
 ): void {
   const money = !lg.resultUnit || lg.resultUnit.startsWith("원");
   const perUnit = lg.resultUnit.split("/").slice(1).join("/");
@@ -187,7 +188,7 @@ export function renderSummary(
   /* 고칠 것 — 빈 받는 자리 · 검사 · 계산 오류 */
   let checked: string[] = [];
   try {
-    checked = checkLogic(lg);
+    checked = checkLogic(lg, opts?.values ?? {});
   } catch {
     checked = [];
   }
diff --git a/M02_MasterTemplete/CostFlow/_sample/masonry.json b/M02_MasterTemplete/CostFlow/_sample/masonry.json
index 3182b5a6a..7ad4f5adb 100644
--- a/M02_MasterTemplete/CostFlow/_sample/masonry.json
+++ b/M02_MasterTemplete/CostFlow/_sample/masonry.json
@@ -86,7 +86,7 @@
       "kind": "input",
       "name": "인력",
       "color": "#2f80ed",
-      "unit": "-",
+      "unit": "원/일",
       "x": 40,
       "y": 620,
       "input": {
diff --git a/resources/tester/test_m02_cf_inputpanel_build.py b/resources/tester/test_m02_cf_inputpanel_build.py
index 890b0639d..79aa5cb05 100644
--- a/resources/tester/test_m02_cf_inputpanel_build.py
+++ b/resources/tester/test_m02_cf_inputpanel_build.py
@@ -219,3 +219,36 @@ def test_환율_유가전력_알약_이름에_날짜가_안_들어감():
         "값": 1900,
     }
     assert call("elementOf", "유가전력", oil)["name"] == "휘발유 서울"
+
+
+def test_단위가_안_맞게_저장된_상자는_열_때_맞춤():
+    el1, el2 = call("elementOf", "인력", LABOR), call("elementOf", "인력", LABOR2)
+    lg = logic()
+    lg["boxes"][0]["input"] = {
+        "mode": "group",
+        "group": "인력",
+        "elements": [el1, el2],
+        "variables": [],
+    }
+    assert lg["boxes"][0]["unit"] == "-"
+    fixed = run([{"op": "fn", "name": "reconcileUnit", "args": [lg, "b1"]}])[0]
+    assert fixed["boxes"][0]["unit"] == "원/일"
+    again = run([{"op": "fn", "name": "reconcileUnit", "args": [fixed, "b1"]}])[0]
+    assert again == fixed
+    oil = {"ref": "X", "name": "경유", "spec": "", "unit": "원/L"}
+    lg["boxes"][0]["input"]["elements"].append(oil)
+    lg["boxes"][0]["unit"] = "원/일"
+    assert (
+        run([{"op": "fn", "name": "reconcileUnit", "args": [lg, "b1"]}])[0]["boxes"][0]["unit"]
+        == "-"
+    )
+    one = {
+        "mode": "variable",
+        "elements": [],
+        "variables": [{"name": "면적", "type": "number", "unit": "㎡", "example": 1}],
+    }
+    lg["boxes"][0]["input"] = one
+    assert (
+        run([{"op": "fn", "name": "reconcileUnit", "args": [lg, "b1"]}])[0]["boxes"][0]["unit"]
+        == "㎡"
+    )
diff --git a/resources/tester/test_m02_cf_sample.py b/resources/tester/test_m02_cf_sample.py
index 863354316..1312cd508 100644
--- a/resources/tester/test_m02_cf_sample.py
+++ b/resources/tester/test_m02_cf_sample.py
@@ -124,6 +124,9 @@ def test_견본_모양(name: str) -> None:
             assert len({i["cell"] for i in fn["inputs"]}) == len(fn["inputs"])
         if b["kind"] == "output":
             assert b["output"]["cost"] in ("노무비", "재료비", "경비", "값")
+        units = {e["unit"] for e in (b.get("input") or {}).get("elements") or []}
+        if len(units) == 1:  # 요소 단위가 모두 같으면 상자 단위도 그것(공통 단위 규칙)
+            assert b["unit"] == next(iter(units)), b["id"]
     for link in lg["links"]:
         a, z = boxes[link["from"]["box"]], boxes[link["to"]["box"]]
         assert link["from"]["name"] in _ports_out(a), link