diff --git a/crates/ui-egui/src/dialogs.rs b/crates/ui-egui/src/dialogs.rs
index 3116a4da9..ada19d3a4 100644
--- a/crates/ui-egui/src/dialogs.rs
+++ b/crates/ui-egui/src/dialogs.rs
@@ -47,13 +47,28 @@ impl Dialog {
         &self.name
     }
 
-    /// Sets a form value. In Zoom, a Magnification choice is also the percentage `view.zoom` stores.
+    /// Sets a form value. In Zoom, a Magnification choice is also the percentage `view.zoom`
+    /// stores, a typed percentage selects Custom, and Fit selection makes OK run
+    /// `view.zoomToSelection` (its view size was captured when the dialog opened).
     pub(crate) fn set_value(&mut self, key: &str, value: Json) {
-        if self.name == "zoom"
-            && key == "preset"
-            && let Some(p) = value.as_str().and_then(|s| s.parse::<f64>().ok())
-        {
-            self.values.insert("percent".into(), json!(p));
+        if self.name == "zoom" {
+            match key {
+                "preset" => match value.as_str() {
+                    Some("fit") => self.command = Some("view.zoomToSelection"),
+                    Some(s) => {
+                        self.command = Some("view.zoom");
+                        if let Ok(p) = s.parse::<f64>() {
+                            self.values.insert("percent".into(), json!(p));
+                        }
+                    }
+                    None => {}
+                },
+                "percent" => {
+                    self.command = Some("view.zoom");
+                    self.values.insert("preset".into(), json!(zoom_preset(value.as_f64().unwrap_or(0.0))));
+                }
+                _ => {}
+            }
         }
         self.values.insert(key.into(), value);
     }
@@ -526,20 +541,19 @@ impl Dialog {
                 ],
                 json!({"groupBy": "A", "function": "sum"}),
             ),
-            "zoom" => Dialog::form(
-                "zoom",
-                "Zoom",
-                "view.zoom",
-                vec![
-                    Choice {
-                        key: "preset",
-                        label: "Magnification",
-                        options: vec![("200", "200%"), ("100", "100%"), ("75", "75%"), ("50", "50%"), ("25", "25%")],
-                    },
-                    Number { key: "percent", label: "Custom (%):" },
-                ],
-                json!({"percent": app.session.active().and_then(|d| d.wb.active().map(|s| s.zoom)).unwrap_or(100)}),
-            ),
+            "zoom" => {
+                // The current zoom is pre-selected (Custom when it matches no preset). Fit
+                // selection needs the grid's size, so it is captured here for `view.zoomToSelection`.
+                let zoom = app.session.active().and_then(|d| d.wb.active().map(|s| s.zoom)).unwrap_or(100);
+                let view = app.grid.cells_rect.unwrap_or(egui::Rect::from_min_size(egui::pos2(0.0, 0.0), vec2(1200.0, 700.0)));
+                Dialog::form(
+                    "zoom",
+                    "Zoom",
+                    "view.zoom",
+                    vec![],
+                    json!({"percent": zoom, "preset": zoom_preset(zoom as f64), "viewWidth": view.width(), "viewHeight": view.height()}),
+                )
+            }
             "defineName" => {
                 // Name Manager › Edit… passes the name being edited (`oldName`, `oldScope`) and
                 // its current fields; New… and Define Name start from the selection.
@@ -987,13 +1001,6 @@ fn build_params(d: &Dialog) -> Json {
                 }
             }
         }
-        "zoom" => {
-            if let Some(p) = d.values.get("preset").and_then(Json::as_str)
-                && d.values.get("percent").is_none()
-            {
-                v["percent"] = json!(p.parse::<f64>().unwrap_or(100.0));
-            }
-        }
         "cfQuick" => {
             let mut rule = Map::new();
             for (k, val) in &d.values {
@@ -1037,6 +1044,7 @@ pub fn show(app: &mut SheetApp, ctx: &egui::Context) {
         "recommendedCharts" => 600.0,
         "analysisToolPak" => 420.0,
         "solver" => 460.0,
+        "zoom" => 220.0,
         _ => 380.0,
     };
     let window = egui::Window::new(app.ui.language.tr(&d.title))
@@ -1057,6 +1065,7 @@ pub fn show(app: &mut SheetApp, ctx: &egui::Context) {
                 "insertFunction" => insert_function(app, ui, &mut d, &mut confirm),
                 "find" => find(app, ui, &mut d),
                 "goTo" => go_to(app, ui, &mut d, &mut confirm),
+                "zoom" => zoom(ui, &mut d, &mut confirm, &mut open),
                 "sort" => sort(app, ui, &mut d, &mut confirm),
                 "nameManager" => name_manager(app, ui, &mut d, &mut open),
                 "manageRules" => manage_rules(app, ui),
@@ -1896,6 +1905,43 @@ fn find(app: &mut SheetApp, ui: &mut egui::Ui, d: &mut Dialog) {
     }
 }
 
+/// Zoom's Magnification presets, as `preset` values and labels, in Excel's order.
+const ZOOM_PRESETS: [(&str, &str); 5] = [("200", "200%"), ("100", "100%"), ("75", "75%"), ("50", "50%"), ("25", "25%")];
+
+/// The `preset` that shows a zoom percentage: its Magnification entry, or Custom.
+fn zoom_preset(percent: f64) -> &'static str {
+    ZOOM_PRESETS.iter().map(|(val, _)| *val).find(|val| val.parse::<f64>().ok() == Some(percent)).unwrap_or("custom")
+}
+
+/// View › Zoom, laid out as Excel's: one Magnification column of 200% to 25%, Fit selection and
+/// Custom with its percentage box. The current zoom is pre-selected; typing a percentage
+/// selects Custom; Fit selection zooms so the selected cells fill the grid.
+fn zoom(ui: &mut egui::Ui, d: &mut Dialog, confirm: &mut bool, open: &mut bool) {
+    let lang = crate::i18n::current(ui.ctx());
+    let cur = d.values.get("preset").and_then(Json::as_str).unwrap_or("custom").to_string();
+    ui.label(egui::RichText::new(lang.tr("Magnification")).strong());
+    for (val, text) in ZOOM_PRESETS {
+        if ui.radio(cur == val, text).clicked() {
+            d.set_value("preset", json!(val));
+        }
+    }
+    if ui.radio(cur == "fit", lang.tr("Fit selection")).clicked() {
+        d.set_value("preset", json!("fit"));
+    }
+    ui.horizontal(|ui| {
+        if ui.radio(cur == "custom", format!("{}:", lang.tr("Custom"))).clicked() {
+            d.set_value("preset", json!("custom"));
+        }
+        // Whole percentages, as Excel shows them; the engine clamps to 10..400 as well.
+        let mut percent = d.values.get("percent").and_then(Json::as_f64).unwrap_or(100.0).round() as i64;
+        if ui.add(egui::DragValue::new(&mut percent).range(10..=400).speed(1.0)).changed() {
+            d.set_value("percent", json!(percent));
+        }
+        ui.label("%");
+    });
+    ok_cancel(ui, confirm, open);
+}
+
 fn go_to(app: &mut SheetApp, ui: &mut egui::Ui, d: &mut Dialog, confirm: &mut bool) {
     let names: Vec<String> = app.session.active().map(|doc| doc.wb.names.iter().map(|n| n.name.clone()).collect()).unwrap_or_default();
     for n in names {
diff --git a/crates/ui-egui/src/i18n.rs b/crates/ui-egui/src/i18n.rs
index 98919f8a4..4a2cd6fe9 100644
--- a/crates/ui-egui/src/i18n.rs
+++ b/crates/ui-egui/src/i18n.rs
@@ -386,6 +386,8 @@ const JAPANESE: &[(&str, &str)] = &[
     ("Gridlines", "目盛線"),
     ("Headings", "見出し"),
     ("Zoom", "ズーム"),
+    ("Magnification", "倍率"),
+    ("Fit selection", "選択範囲に合わせる"),
     ("100%", "100%"),
     ("Zoom to\nSelection", "選択範囲を拡大"),
     ("Freeze\nPanes", "ウィンドウ枠の固定"),
diff --git a/crates/ui-egui/src/i18n/cs.rs b/crates/ui-egui/src/i18n/cs.rs
index 7ed8372c7..5c7c894dd 100644
--- a/crates/ui-egui/src/i18n/cs.rs
+++ b/crates/ui-egui/src/i18n/cs.rs
@@ -192,6 +192,8 @@ pub(super) fn translate(text: &str) -> Option<&'static str> {
         "Gridlines" => "Mřížka",
         "Headings" => "Záhlaví",
         "Zoom" => "Lupa",
+        "Magnification" => "Měřítko",
+        "Fit selection" => "Přizpůsobit výběru",
         "Forecast\nSheet" => "List\nprognózy",
         "Add footer" => "Přidat zápatí",
         "Add header" => "Přidat záhlaví",
diff --git a/crates/ui-egui/src/i18n/de.rs b/crates/ui-egui/src/i18n/de.rs
index 371ea7981..1f5264bb3 100644
--- a/crates/ui-egui/src/i18n/de.rs
+++ b/crates/ui-egui/src/i18n/de.rs
@@ -192,6 +192,8 @@ pub(super) fn translate(text: &str) -> Option<&'static str> {
         "Gridlines" => "Gitternetzlinien",
         "Headings" => "Überschriften",
         "Zoom" => "Zoom",
+        "Magnification" => "Vergrößerung",
+        "Fit selection" => "An Markierung anpassen",
         "Forecast\nSheet" => "Prognose-\nblatt",
         "Add footer" => "Fußzeile hinzufügen",
         "Add header" => "Kopfzeile hinzufügen",
diff --git a/crates/ui-egui/src/i18n/es.rs b/crates/ui-egui/src/i18n/es.rs
index 4ce231bca..a2ceaef9b 100644
--- a/crates/ui-egui/src/i18n/es.rs
+++ b/crates/ui-egui/src/i18n/es.rs
@@ -193,6 +193,8 @@ pub(super) fn translate(text: &str) -> Option<&'static str> {
         "Gridlines" => "Líneas de cuadrícula",
         "Headings" => "Encabezados",
         "Zoom" => "Zoom",
+        "Magnification" => "Ampliación",
+        "Fit selection" => "Ajustar la selección",
         "Forecast\nSheet" => "Hoja de\npronóstico",
         "Add footer" => "Agregar pie de página",
         "Add header" => "Agregar encabezado",
diff --git a/crates/ui-egui/src/i18n/fr.rs b/crates/ui-egui/src/i18n/fr.rs
index 82027e847..b039a37b6 100644
--- a/crates/ui-egui/src/i18n/fr.rs
+++ b/crates/ui-egui/src/i18n/fr.rs
@@ -214,6 +214,8 @@ pub(super) fn translate(text: &str) -> Option<&'static str> {
         "Gridlines" => "Quadrillage",
         "Headings" => "En-têtes",
         "Zoom" => "Zoom",
+        "Magnification" => "Zoom",
+        "Fit selection" => "Ajuster la sélection",
         "100%" => "100 %",
         "Zoom to\nSelection" => "Zoom sur la\nsélection",
         "Freeze\nPanes" => "Figer les\nvolets",
diff --git a/crates/ui-egui/src/i18n/ko.rs b/crates/ui-egui/src/i18n/ko.rs
index 1902ad301..77052d208 100644
--- a/crates/ui-egui/src/i18n/ko.rs
+++ b/crates/ui-egui/src/i18n/ko.rs
@@ -211,6 +211,8 @@ pub(super) fn translate(text: &str) -> Option<&'static str> {
         "Gridlines" => "눈금선",
         "Headings" => "머리글",
         "Zoom" => "확대/축소",
+        "Magnification" => "배율",
+        "Fit selection" => "선택 영역에 맞춤",
         "100%" => "100%",
         "Zoom to\nSelection" => "선택 영역에\n맞춤",
         "Freeze\nPanes" => "틀\n고정",
diff --git a/crates/ui-egui/src/i18n/pt.rs b/crates/ui-egui/src/i18n/pt.rs
index fb9236cdb..e1751cff7 100644
--- a/crates/ui-egui/src/i18n/pt.rs
+++ b/crates/ui-egui/src/i18n/pt.rs
@@ -212,6 +212,7 @@ pub(super) fn translate(text: &str) -> Option<&'static str> {
         "Gridlines" => "Linhas de Grade",
         "Headings" => "Títulos",
         "Zoom" => "Zoom",
+        "Fit selection" => "Ajustar seleção",
         "100%" => "100%",
         "Zoom to\nSelection" => "Zoom na\nSeleção",
         "Freeze\nPanes" => "Congelar\nPainéis",
diff --git a/crates/ui-egui/src/i18n/ru.rs b/crates/ui-egui/src/i18n/ru.rs
index 765f6bb32..de0b485a2 100644
--- a/crates/ui-egui/src/i18n/ru.rs
+++ b/crates/ui-egui/src/i18n/ru.rs
@@ -211,6 +211,8 @@ pub(super) fn translate(text: &str) -> Option<&'static str> {
         "Gridlines" => "Сетка",
         "Headings" => "Заголовки",
         "Zoom" => "Масштаб",
+        "Magnification" => "Масштаб",
+        "Fit selection" => "По выделению",
         "100%" => "100%",
         "Zoom to\nSelection" => "Масштаб по\nвыделению",
         "Freeze\nPanes" => "Закрепить\nобласти",
diff --git a/crates/ui-egui/src/i18n/sr.rs b/crates/ui-egui/src/i18n/sr.rs
index 85bd2da72..8d0f83e99 100644
--- a/crates/ui-egui/src/i18n/sr.rs
+++ b/crates/ui-egui/src/i18n/sr.rs
@@ -206,6 +206,8 @@ pub(super) fn translate(text: &str) -> Option<&'static str> {
         "Gridlines" => "Linije mreže",
         "Headings" => "Zaglavlja",
         "Zoom" => "Uvećanje",
+        "Magnification" => "Uvećanje",
+        "Fit selection" => "Uklopi izbor",
         "100%" => "100%",
         "Zoom to\nSelection" => "Uvećaj na\nselekciju",
         "Freeze\nPanes" => "Zamrzni\nokna",
diff --git a/crates/ui-egui/src/i18n/zh.rs b/crates/ui-egui/src/i18n/zh.rs
index 00175925e..df9b7acbf 100644
--- a/crates/ui-egui/src/i18n/zh.rs
+++ b/crates/ui-egui/src/i18n/zh.rs
@@ -211,6 +211,8 @@ pub(super) fn translate(text: &str) -> Option<&'static str> {
         "Gridlines" => "网格线",
         "Headings" => "标题",
         "Zoom" => "缩放",
+        "Magnification" => "缩放比例",
+        "Fit selection" => "恰好容纳选定区域",
         "100%" => "100%",
         "Zoom to\nSelection" => "缩放到\n所选内容",
         "Freeze\nPanes" => "冻结\n窗格",
diff --git a/crates/ui-egui/tests/zoom_dialog.rs b/crates/ui-egui/tests/zoom_dialog.rs
index f5be90833..f300d68f0 100644
--- a/crates/ui-egui/tests/zoom_dialog.rs
+++ b/crates/ui-egui/tests/zoom_dialog.rs
@@ -83,3 +83,65 @@ fn a_custom_percentage_after_a_magnification_wins_and_an_unedited_ok_keeps_the_z
     control(&mut h, "ui.dialog.confirm", json!({}));
     assert_eq!(zoom(&h), 225);
 }
+
+#[test]
+fn the_current_zoom_is_preselected_as_its_magnification_or_as_custom() {
+    let mut h = harness();
+    h.state_mut().open_dialog("zoom", json!({}));
+    h.run_steps(2);
+    let d = h.state().dialog.clone().unwrap();
+    assert_eq!(d.values["preset"], json!("100"));
+    assert_eq!(d.values["percent"], json!(100));
+    control(&mut h, "ui.dialog.cancel", json!({}));
+    h.state_mut().run("view.zoom", json!({"percent": 130})).unwrap();
+    h.state_mut().open_dialog("zoom", json!({}));
+    h.run_steps(2);
+    let d = h.state().dialog.clone().unwrap();
+    assert_eq!(d.values["preset"], json!("custom"));
+    assert_eq!(d.values["percent"], json!(130));
+    // An unedited OK keeps the zoom.
+    let r = control(&mut h, "ui.dialog.confirm", json!({}));
+    assert_eq!(r["ok"], json!(true), "{r}");
+    assert_eq!(zoom(&h), 130);
+}
+
+#[test]
+fn a_typed_percentage_selects_custom_and_sets_that_zoom() {
+    let mut h = harness();
+    control(&mut h, "ui.dialog", json!({"name": "zoom"}));
+    control(&mut h, "ui.dialog.set", json!({"field": "preset", "value": "fit"}));
+    control(&mut h, "ui.dialog.set", json!({"field": "percent", "value": 150}));
+    assert_eq!(h.state().dialog.as_ref().unwrap().values["preset"], json!("custom"));
+    let r = control(&mut h, "ui.dialog.confirm", json!({}));
+    assert_eq!(r["ok"], json!(true), "{r}");
+    assert_eq!(zoom(&h), 150);
+}
+
+#[test]
+fn fit_selection_zooms_so_the_selected_cells_fill_the_grid() {
+    let mut h = harness();
+    h.state_mut().run("selection.set", json!({"range": "A1:J40"})).unwrap();
+    h.run_steps(2);
+    let view = h.state().grid.cells_rect.unwrap();
+    h.state_mut().open_dialog("zoom", json!({}));
+    h.run_steps(6);
+    h.get_by_label("Fit selection").click();
+    h.run_steps(6);
+    h.get_by_label("   OK   ").click();
+    h.run_steps(6);
+    assert!(h.state().dialog.is_none());
+    // The same answer the ribbon's Zoom to Selection gives for this grid.
+    let mut expected = Session::new();
+    expected.new_workbook();
+    expected.execute("selection.set", json!({"range": "A1:J40"})).unwrap();
+    let r = expected.execute("view.zoomToSelection", json!({"viewWidth": view.width(), "viewHeight": view.height()})).unwrap();
+    assert_eq!(json!(zoom(&h)), r["zoom"]);
+    assert!(zoom(&h) > 10 && zoom(&h) < 100, "{}", zoom(&h));
+    // Fit selection over the control channel, before any frame is drawn, uses the grid size captured on opening.
+    h.state_mut().run("selection.set", json!({"range": "A1"})).unwrap();
+    control(&mut h, "ui.dialog", json!({"name": "zoom"}));
+    control(&mut h, "ui.dialog.set", json!({"field": "preset", "value": "fit"}));
+    let r = control(&mut h, "ui.dialog.confirm", json!({}));
+    assert_eq!(r["ok"], json!(true), "{r}");
+    assert_eq!(zoom(&h), 400);
+}