diff --git a/crypto_monitor_binance/templates/index.html b/crypto_monitor_binance/templates/index.html
index b2dca61..34e5a70 100644
--- a/crypto_monitor_binance/templates/index.html
+++ b/crypto_monitor_binance/templates/index.html
@@ -396,6 +396,7 @@
                 <input id="order-tp" name="tgt" step="any" placeholder="止盈价格" style="display:none">
                 <input id="order-sl-pct" name="sl_pct" type="number" min="0.01" step="0.01" placeholder="止损%" style="display:none">
                 <input id="order-tp-pct" name="tp_pct" type="number" min="0.01" step="0.01" placeholder="止盈%" style="display:none">
+                <span id="order-rr-preview" class="order-rr-preview" style="font-size:.82rem;color:#8fc8ff;align-self:center">预估盈亏比：—</span>
                 <button type="submit">{{ open_position_button_label }}</button>
             </form>
         </div>
@@ -809,6 +810,7 @@
 <script src="/static/time_close_ui.js?v=2"></script>
 <script src="/static/ai_review_render.js?v=2"></script>
 <script src="/static/form_submit_guard.js?v=2"></script>
+<script src="/static/manual_order_rr_preview.js?v=1"></script>
 <script>
 const JOURNAL_ENTRY_REASON_OPTIONS = {{ entry_reason_options | tojson }};
 const JOURNAL_ENTRY_REASON_OTHER = {{ entry_reason_other_value | tojson }};
@@ -1695,6 +1697,7 @@ function refreshOrderTpPreview(entryPx){
     const entry = entryPx != null && Number.isFinite(Number(entryPx)) ? Number(entryPx) : sl;
     const tp = calcTpFromFixedRr(direction, entry, sl, rr);
     preview.textContent = tp == null ? "预估止盈：—" : ("预估止盈：" + formatPriceForInput(tp));
+    if(window.ManualOrderRrPreview) ManualOrderRrPreview.schedule();
 }
 function calcClientRr(direction, entry, sl, tp){
     const e = Number(entry), s = Number(sl), t = Number(tp);
@@ -1967,6 +1970,7 @@ function refreshOrderDefaults(){
         }
         const px = data.last_price || data.price;
         if(px) refreshOrderTpPreview(px);
+        if(window.ManualOrderRrPreview) ManualOrderRrPreview.schedule();
     }).catch(()=>{});
 }
 
@@ -2046,12 +2050,16 @@ function toggleSltpMode(){
     slPctEl.required = pct;
     tpPctEl.required = pct;
     refreshOrderTpPreview();
+    if(window.ManualOrderRrPreview) ManualOrderRrPreview.schedule();
 }
 if(sltpModeEl){
     sltpModeEl.addEventListener("change", toggleSltpMode);
     loadFixedRrPref();
     toggleSltpMode();
 }
+if(window.ManualOrderRrPreview){
+    ManualOrderRrPreview.wire({ minRr: MANUAL_MIN_PLANNED_RR });
+}
 ["order-sl","order-fixed-rr","order-direction"].forEach(function(id){
     const el = document.getElementById(id);
     if(el) el.addEventListener("input", function(){ refreshOrderTpPreview(); });
diff --git a/crypto_monitor_gate/templates/index.html b/crypto_monitor_gate/templates/index.html
index a3def8c..fe3e68f 100644
--- a/crypto_monitor_gate/templates/index.html
+++ b/crypto_monitor_gate/templates/index.html
@@ -376,6 +376,7 @@
                 <input id="order-tp" name="tgt" step="any" placeholder="止盈价格" style="display:none">
                 <input id="order-sl-pct" name="sl_pct" type="number" min="0.01" step="0.01" placeholder="止损%" style="display:none">
                 <input id="order-tp-pct" name="tp_pct" type="number" min="0.01" step="0.01" placeholder="止盈%" style="display:none">
+                <span id="order-rr-preview" class="order-rr-preview" style="font-size:.82rem;color:#8fc8ff;align-self:center">预估盈亏比：—</span>
                 <button type="submit">{{ open_position_button_label }}</button>
             </form>
         </div>
@@ -789,6 +790,7 @@
 <script src="/static/time_close_ui.js?v=2"></script>
 <script src="/static/ai_review_render.js?v=2"></script>
 <script src="/static/form_submit_guard.js?v=2"></script>
+<script src="/static/manual_order_rr_preview.js?v=1"></script>
 <script>
 const JOURNAL_ENTRY_REASON_OPTIONS = {{ entry_reason_options | tojson }};
 const JOURNAL_ENTRY_REASON_OTHER = {{ entry_reason_other_value | tojson }};
@@ -1675,6 +1677,7 @@ function refreshOrderTpPreview(entryPx){
     const entry = entryPx != null && Number.isFinite(Number(entryPx)) ? Number(entryPx) : sl;
     const tp = calcTpFromFixedRr(direction, entry, sl, rr);
     preview.textContent = tp == null ? "预估止盈：—" : ("预估止盈：" + formatPriceForInput(tp));
+    if(window.ManualOrderRrPreview) ManualOrderRrPreview.schedule();
 }
 function calcClientRr(direction, entry, sl, tp){
     const e = Number(entry), s = Number(sl), t = Number(tp);
@@ -1947,6 +1950,7 @@ function refreshOrderDefaults(){
         }
         const px = data.last_price || data.price;
         if(px) refreshOrderTpPreview(px);
+        if(window.ManualOrderRrPreview) ManualOrderRrPreview.schedule();
     }).catch(()=>{});
 }
 
@@ -2026,12 +2030,16 @@ function toggleSltpMode(){
     slPctEl.required = pct;
     tpPctEl.required = pct;
     refreshOrderTpPreview();
+    if(window.ManualOrderRrPreview) ManualOrderRrPreview.schedule();
 }
 if(sltpModeEl){
     sltpModeEl.addEventListener("change", toggleSltpMode);
     loadFixedRrPref();
     toggleSltpMode();
 }
+if(window.ManualOrderRrPreview){
+    ManualOrderRrPreview.wire({ minRr: MANUAL_MIN_PLANNED_RR });
+}
 ["order-sl","order-fixed-rr","order-direction"].forEach(function(id){
     const el = document.getElementById(id);
     if(el) el.addEventListener("input", function(){ refreshOrderTpPreview(); });
diff --git a/crypto_monitor_gate_bot/templates/index.html b/crypto_monitor_gate_bot/templates/index.html
index a3def8c..fe3e68f 100644
--- a/crypto_monitor_gate_bot/templates/index.html
+++ b/crypto_monitor_gate_bot/templates/index.html
@@ -376,6 +376,7 @@
                 <input id="order-tp" name="tgt" step="any" placeholder="止盈价格" style="display:none">
                 <input id="order-sl-pct" name="sl_pct" type="number" min="0.01" step="0.01" placeholder="止损%" style="display:none">
                 <input id="order-tp-pct" name="tp_pct" type="number" min="0.01" step="0.01" placeholder="止盈%" style="display:none">
+                <span id="order-rr-preview" class="order-rr-preview" style="font-size:.82rem;color:#8fc8ff;align-self:center">预估盈亏比：—</span>
                 <button type="submit">{{ open_position_button_label }}</button>
             </form>
         </div>
@@ -789,6 +790,7 @@
 <script src="/static/time_close_ui.js?v=2"></script>
 <script src="/static/ai_review_render.js?v=2"></script>
 <script src="/static/form_submit_guard.js?v=2"></script>
+<script src="/static/manual_order_rr_preview.js?v=1"></script>
 <script>
 const JOURNAL_ENTRY_REASON_OPTIONS = {{ entry_reason_options | tojson }};
 const JOURNAL_ENTRY_REASON_OTHER = {{ entry_reason_other_value | tojson }};
@@ -1675,6 +1677,7 @@ function refreshOrderTpPreview(entryPx){
     const entry = entryPx != null && Number.isFinite(Number(entryPx)) ? Number(entryPx) : sl;
     const tp = calcTpFromFixedRr(direction, entry, sl, rr);
     preview.textContent = tp == null ? "预估止盈：—" : ("预估止盈：" + formatPriceForInput(tp));
+    if(window.ManualOrderRrPreview) ManualOrderRrPreview.schedule();
 }
 function calcClientRr(direction, entry, sl, tp){
     const e = Number(entry), s = Number(sl), t = Number(tp);
@@ -1947,6 +1950,7 @@ function refreshOrderDefaults(){
         }
         const px = data.last_price || data.price;
         if(px) refreshOrderTpPreview(px);
+        if(window.ManualOrderRrPreview) ManualOrderRrPreview.schedule();
     }).catch(()=>{});
 }
 
@@ -2026,12 +2030,16 @@ function toggleSltpMode(){
     slPctEl.required = pct;
     tpPctEl.required = pct;
     refreshOrderTpPreview();
+    if(window.ManualOrderRrPreview) ManualOrderRrPreview.schedule();
 }
 if(sltpModeEl){
     sltpModeEl.addEventListener("change", toggleSltpMode);
     loadFixedRrPref();
     toggleSltpMode();
 }
+if(window.ManualOrderRrPreview){
+    ManualOrderRrPreview.wire({ minRr: MANUAL_MIN_PLANNED_RR });
+}
 ["order-sl","order-fixed-rr","order-direction"].forEach(function(id){
     const el = document.getElementById(id);
     if(el) el.addEventListener("input", function(){ refreshOrderTpPreview(); });
diff --git a/crypto_monitor_okx/templates/index.html b/crypto_monitor_okx/templates/index.html
index 35bda90..9927fc6 100644
--- a/crypto_monitor_okx/templates/index.html
+++ b/crypto_monitor_okx/templates/index.html
@@ -405,6 +405,7 @@
                 <input id="order-tp" name="tgt" step="any" placeholder="止盈价格" style="display:none">
                 <input id="order-sl-pct" name="sl_pct" type="number" min="0.01" step="0.01" placeholder="止损%" style="display:none">
                 <input id="order-tp-pct" name="tp_pct" type="number" min="0.01" step="0.01" placeholder="止盈%" style="display:none">
+                <span id="order-rr-preview" class="order-rr-preview" style="font-size:.82rem;color:#8fc8ff;align-self:center">预估盈亏比：—</span>
                 <button type="submit">{{ open_position_button_label }}</button>
             </form>
         </div>
@@ -818,6 +819,7 @@
 <script src="/static/time_close_ui.js?v=2"></script>
 <script src="/static/ai_review_render.js?v=2"></script>
 <script src="/static/form_submit_guard.js?v=2"></script>
+<script src="/static/manual_order_rr_preview.js?v=1"></script>
 <script>
 const JOURNAL_ENTRY_REASON_OPTIONS = {{ entry_reason_options | tojson }};
 const JOURNAL_ENTRY_REASON_OTHER = {{ entry_reason_other_value | tojson }};
@@ -1705,6 +1707,7 @@ function refreshOrderTpPreview(entryPx){
     const entry = entryPx != null && Number.isFinite(Number(entryPx)) ? Number(entryPx) : sl;
     const tp = calcTpFromFixedRr(direction, entry, sl, rr);
     preview.textContent = tp == null ? "预估止盈：—" : ("预估止盈：" + formatPriceForInput(tp));
+    if(window.ManualOrderRrPreview) ManualOrderRrPreview.schedule();
 }
 function calcClientRr(direction, entry, sl, tp){
     const e = Number(entry), s = Number(sl), t = Number(tp);
@@ -1977,6 +1980,7 @@ function refreshOrderDefaults(){
         }
         const px = data.last_price || data.price;
         if(px) refreshOrderTpPreview(px);
+        if(window.ManualOrderRrPreview) ManualOrderRrPreview.schedule();
     }).catch(()=>{});
 }
 
@@ -2079,12 +2083,16 @@ function toggleSltpMode(){
     slPctEl.required = pct;
     tpPctEl.required = pct;
     refreshOrderTpPreview();
+    if(window.ManualOrderRrPreview) ManualOrderRrPreview.schedule();
 }
 if(sltpModeEl){
     sltpModeEl.addEventListener("change", toggleSltpMode);
     loadFixedRrPref();
     toggleSltpMode();
 }
+if(window.ManualOrderRrPreview){
+    ManualOrderRrPreview.wire({ minRr: MANUAL_MIN_PLANNED_RR });
+}
 ["order-sl","order-fixed-rr","order-direction"].forEach(function(id){
     const el = document.getElementById(id);
     if(el) el.addEventListener("input", function(){ refreshOrderTpPreview(); });
diff --git a/docs/manual-order-rr-preview.md b/docs/manual-order-rr-preview.md
new file mode 100644
index 0000000..c377fa3
--- /dev/null
+++ b/docs/manual-order-rr-preview.md
@@ -0,0 +1,30 @@
+# 实盘下单 · 预估盈亏比
+
+## 功能
+
+四所（Binance / OKX / Gate / Gate趋势）**实盘下单监控**表单中，在「开仓」按钮前显示 **预估盈亏比**。
+
+- **价格模式**：填完币种、方向、止损价、止盈价后，调用 `GET /api/order_defaults` 取标记价，按几何距离计算 RR。
+- **百分比模式**：填完币种、方向、止损%、止盈% 后拉快照校验币种，再显示 RR（`止盈% / 止损%`）。
+- **固定盈亏比模式**：填完币种、方向、止损价、盈亏比后取价校验几何合法，展示填写的盈亏比。
+
+与计仓方式无关：**以损定仓**（`POSITION_SIZING_MODE=risk`）与 **全仓杠杆**（`full_margin`）均显示同一预估。
+
+## 前端实现
+
+- 共享脚本：`static/manual_order_rr_preview.js`
+- 各所 `templates/index.html` 引入并在 `MANUAL_MIN_PLANNED_RR` 定义后执行：
+  ```js
+  ManualOrderRrPreview.wire({ minRr: MANUAL_MIN_PLANNED_RR });
+  ```
+- 展示元素：`#order-rr-preview`（开仓按钮左侧）
+- 颜色：≥ 最低要求为绿色，低于为红色，无效/取价失败为红色或灰色
+
+## 与提交校验
+
+提交时仍走原有 `calcClientRr` / `calcClientRrFromPct` 与 `rejectManualOrderRr`；预估仅用于下单前参考，不替代服务端风控。
+
+## 校验记录
+
+- `node --check static/manual_order_rr_preview.js`
+- `tests/test_manual_order_rr_preview.py`：RR 公式与四所 `calc_rr_ratio` 口径一致
diff --git a/static/manual_order_rr_preview.js b/static/manual_order_rr_preview.js
new file mode 100644
index 0000000..9d669c3
--- /dev/null
+++ b/static/manual_order_rr_preview.js
@@ -0,0 +1,225 @@
+/**
+ * 实盘下单：币种 + 止盈止损填完后拉 /api/order_defaults 快照，在开仓按钮前显示预估盈亏比。
+ * 价格 / 百分比 / 固定盈亏比模式通用；与以损定仓、全仓杠杆计仓方式无关。
+ */
+(function (global) {
+  "use strict";
+
+  let debounceMs = 400;
+  let minRr = 1.5;
+  let debounceTimer = null;
+  let fetchSeq = 0;
+
+  function $(id) {
+    return document.getElementById(id);
+  }
+
+  function num(v) {
+    const n = Number(v);
+    return Number.isFinite(n) ? n : null;
+  }
+
+  function formatRr(rr) {
+    if (rr === null || typeof rr === "undefined") return "—";
+    const n = Number(rr);
+    if (!Number.isFinite(n)) return "—";
+    const body = Number.isInteger(n) ? String(n) : String(parseFloat(n.toFixed(2)));
+    return body + ":1";
+  }
+
+  function calcRr(direction, entry, sl, tp) {
+    const e = num(entry);
+    const s = num(sl);
+    const t = num(tp);
+    if (e === null || s === null || t === null) return null;
+    if (direction === "short") {
+      if (s <= e || t >= e) return null;
+      return (e - t) / (s - e);
+    }
+    if (s >= e || t <= e) return null;
+    return (t - e) / (e - s);
+  }
+
+  function calcRrFromPct(slPct, tpPct) {
+    const sl = num(slPct);
+    const tp = num(tpPct);
+    if (sl === null || tp === null || sl <= 0 || tp <= 0) return null;
+    return tp / sl;
+  }
+
+  function calcTpFromFixedRr(direction, entry, sl, rr) {
+    const e = num(entry);
+    const s = num(sl);
+    const r = num(rr);
+    if (e === null || s === null || r === null || r <= 0) return null;
+    if (direction === "short") {
+      if (s <= e) return null;
+      return e - (s - e) * r;
+    }
+    if (s >= e) return null;
+    return e + (e - s) * r;
+  }
+
+  function currentMode() {
+    return ($("sltp-mode") && $("sltp-mode").value) || "fixed_rr";
+  }
+
+  function currentDirection() {
+    return ($("order-direction") && $("order-direction").value) || "long";
+  }
+
+  function currentSymbol() {
+    return (($("order-symbol") && $("order-symbol").value) || "").trim();
+  }
+
+  function inputsComplete(m) {
+    const dir = currentDirection();
+    if (!currentSymbol() || !dir) return false;
+    if (m === "pct") {
+      const sl = num($("order-sl-pct") && $("order-sl-pct").value);
+      const tp = num($("order-tp-pct") && $("order-tp-pct").value);
+      return sl !== null && tp !== null && sl > 0 && tp > 0;
+    }
+    if (m === "fixed_rr") {
+      const sl = num($("order-sl") && $("order-sl").value);
+      const rr = num($("order-fixed-rr") && $("order-fixed-rr").value);
+      return sl !== null && rr !== null && sl > 0 && rr > 0;
+    }
+    const sl = num($("order-sl") && $("order-sl").value);
+    const tp = num($("order-tp") && $("order-tp").value);
+    return sl !== null && tp !== null && sl > 0 && tp > 0;
+  }
+
+  function paint(rr, state) {
+    const el = $("order-rr-preview");
+    if (!el) return;
+    const m = currentMode();
+    if (m !== "price" && m !== "pct" && m !== "fixed_rr") {
+      el.style.display = "none";
+      return;
+    }
+    el.style.display = "";
+    if (state === "empty") {
+      el.textContent = "预估盈亏比：—";
+      el.style.color = "#8fc8ff";
+      return;
+    }
+    if (state === "loading") {
+      el.textContent = "预估盈亏比：计算中…";
+      el.style.color = "#8fc8ff";
+      return;
+    }
+    if (state === "fetch_fail") {
+      el.textContent = "预估盈亏比：取价失败";
+      el.style.color = "#ff8f8f";
+      return;
+    }
+    if (rr === null) {
+      el.textContent = "预估盈亏比：无效";
+      el.style.color = "#ff8f8f";
+      return;
+    }
+    el.textContent = "预估盈亏比：" + formatRr(rr);
+    el.style.color = rr >= minRr ? "#4cd97f" : "#ff8f8f";
+  }
+
+  function refreshNow() {
+    const m = currentMode();
+    if (!inputsComplete(m)) {
+      paint(null, "empty");
+      return;
+    }
+
+    const sym = currentSymbol();
+    const dir = currentDirection();
+    const seq = ++fetchSeq;
+    paint(null, "loading");
+
+    fetch(
+      "/api/order_defaults?symbol=" +
+        encodeURIComponent(sym) +
+        "&direction=" +
+        encodeURIComponent(dir)
+    )
+      .then(function (r) {
+        return r.json();
+      })
+      .then(function (data) {
+        if (seq !== fetchSeq) return;
+        if (!data.ok) {
+          paint(null, "fetch_fail");
+          return;
+        }
+        if (m === "pct") {
+          const rr = calcRrFromPct(
+            $("order-sl-pct") && $("order-sl-pct").value,
+            $("order-tp-pct") && $("order-tp-pct").value
+          );
+          paint(rr, rr === null ? "invalid" : "ok");
+          return;
+        }
+        const entry = num(data.last_price != null ? data.last_price : data.price);
+        if (entry === null) {
+          paint(null, "fetch_fail");
+          return;
+        }
+        let rr = null;
+        if (m === "fixed_rr") {
+          const sl = num($("order-sl") && $("order-sl").value);
+          const fixed = num($("order-fixed-rr") && $("order-fixed-rr").value);
+          const tp = calcTpFromFixedRr(dir, entry, sl, fixed);
+          rr = tp !== null ? fixed : null;
+        } else {
+          const sl = num($("order-sl") && $("order-sl").value);
+          const tp = num($("order-tp") && $("order-tp").value);
+          rr = calcRr(dir, entry, sl, tp);
+        }
+        paint(rr, rr === null ? "invalid" : "ok");
+      })
+      .catch(function () {
+        if (seq !== fetchSeq) return;
+        paint(null, "fetch_fail");
+      });
+  }
+
+  function schedule() {
+    clearTimeout(debounceTimer);
+    debounceTimer = setTimeout(refreshNow, debounceMs);
+  }
+
+  function wire(opts) {
+    opts = opts || {};
+    if (opts.minRr != null && Number.isFinite(Number(opts.minRr))) {
+      minRr = Number(opts.minRr);
+    }
+    if (opts.debounceMs != null && Number.isFinite(Number(opts.debounceMs))) {
+      debounceMs = Number(opts.debounceMs);
+    }
+    [
+      "order-symbol",
+      "order-direction",
+      "sltp-mode",
+      "order-sl",
+      "order-tp",
+      "order-sl-pct",
+      "order-tp-pct",
+      "order-fixed-rr",
+    ].forEach(function (id) {
+      const el = $(id);
+      if (!el || el._rrPreviewBound) return;
+      el._rrPreviewBound = true;
+      el.addEventListener("input", schedule);
+      el.addEventListener("change", schedule);
+    });
+    schedule();
+  }
+
+  global.ManualOrderRrPreview = {
+    wire: wire,
+    schedule: schedule,
+    refresh: refreshNow,
+    calcRr: calcRr,
+    calcRrFromPct: calcRrFromPct,
+    formatRr: formatRr,
+  };
+})(typeof window !== "undefined" ? window : globalThis);
diff --git a/tests/test_manual_order_rr_preview.py b/tests/test_manual_order_rr_preview.py
new file mode 100644
index 0000000..ef74688
--- /dev/null
+++ b/tests/test_manual_order_rr_preview.py
@@ -0,0 +1,39 @@
+"""预估盈亏比（前端 manual_order_rr_preview.js）公式与后端 calc_rr_ratio 口径一致。"""
+
+
+def _calc_rr(direction: str, entry: float, sl: float, tp: float):
+    if entry <= 0 or sl <= 0 or tp <= 0:
+        return None
+    if direction == "short":
+        risk = sl - entry
+        reward = entry - tp
+    else:
+        risk = entry - sl
+        reward = tp - entry
+    if risk <= 0 or reward <= 0:
+        return None
+    return round(reward / risk, 4)
+
+
+def _calc_rr_from_pct(sl_pct: float, tp_pct: float):
+    if sl_pct <= 0 or tp_pct <= 0:
+        return None
+    return tp_pct / sl_pct
+
+
+def test_long_price_mode_rr():
+    assert _calc_rr("long", 100.0, 95.0, 110.0) == 2.0
+
+
+def test_short_price_mode_rr():
+    assert _calc_rr("short", 100.0, 105.0, 90.0) == 2.0
+
+
+def test_invalid_geometry_returns_none():
+    assert _calc_rr("long", 100.0, 105.0, 110.0) is None
+    assert _calc_rr("short", 100.0, 95.0, 98.0) is None
+
+
+def test_pct_mode_rr():
+    assert _calc_rr_from_pct(2.0, 4.0) == 2.0
+    assert _calc_rr_from_pct(1.5, 3.0) == 2.0