diff --git a/core/src/window/screenshot.rs b/core/src/window/screenshot.rs
index 424168bb..5bb9334b 100644
--- a/core/src/window/screenshot.rs
+++ b/core/src/window/screenshot.rs
@@ -15,7 +15,7 @@ pub struct Screenshot {
     pub size: Size<u32>,
     /// The scale factor of the [`Screenshot`]. This can be useful when converting between widget
     /// bounds (which are in logical pixels) to crop screenshots.
-    pub scale_factor: f64,
+    pub scale_factor: f32,
 }
 
 impl Debug for Screenshot {
@@ -35,7 +35,7 @@ impl Screenshot {
     pub fn new(
         bytes: impl Into<Bytes>,
         size: Size<u32>,
-        scale_factor: f64,
+        scale_factor: f32,
     ) -> Self {
         Self {
             bytes: bytes.into(),
diff --git a/devtools/src/lib.rs b/devtools/src/lib.rs
index 45409267..09a2a67b 100644
--- a/devtools/src/lib.rs
+++ b/devtools/src/lib.rs
@@ -98,7 +98,7 @@ where
         state.style(&self.program, theme)
     }
 
-    fn scale_factor(&self, state: &Self::State, window: window::Id) -> f64 {
+    fn scale_factor(&self, state: &Self::State, window: window::Id) -> f32 {
         state.scale_factor(&self.program, window)
     }
 }
@@ -397,7 +397,7 @@ where
         program.style(self.state(), theme)
     }
 
-    fn scale_factor(&self, program: &P, window: window::Id) -> f64 {
+    fn scale_factor(&self, program: &P, window: window::Id) -> f32 {
         program.scale_factor(self.state(), window)
     }
 
diff --git a/examples/integration/src/main.rs b/examples/integration/src/main.rs
index b3c08879..b98b8273 100644
--- a/examples/integration/src/main.rs
+++ b/examples/integration/src/main.rs
@@ -67,7 +67,7 @@ pub fn main() -> Result<(), winit::error::EventLoopError> {
                 let physical_size = window.inner_size();
                 let viewport = Viewport::with_physical_size(
                     Size::new(physical_size.width, physical_size.height),
-                    window.scale_factor(),
+                    window.scale_factor() as f32,
                 );
                 let clipboard = Clipboard::connect(window.clone());
 
@@ -212,7 +212,7 @@ pub fn main() -> Result<(), winit::error::EventLoopError> {
 
                         *viewport = Viewport::with_physical_size(
                             Size::new(size.width, size.height),
-                            window.scale_factor(),
+                            window.scale_factor() as f32,
                         );
 
                         surface.configure(
@@ -345,7 +345,7 @@ pub fn main() -> Result<(), winit::error::EventLoopError> {
             // Map window event to iced event
             if let Some(event) = conversion::window_event(
                 event,
-                window.scale_factor(),
+                window.scale_factor() as f32,
                 *modifiers,
             ) {
                 events.push(event);
diff --git a/examples/multi_window/src/main.rs b/examples/multi_window/src/main.rs
index 77be505b..cb5e6f43 100644
--- a/examples/multi_window/src/main.rs
+++ b/examples/multi_window/src/main.rs
@@ -26,7 +26,7 @@ struct Example {
 struct Window {
     title: String,
     scale_input: String,
-    current_scale: f64,
+    current_scale: f32,
     theme: Theme,
 }
 
@@ -113,7 +113,7 @@ impl Example {
             Message::ScaleChanged(id, scale) => {
                 if let Some(window) = self.windows.get_mut(&id) {
                     window.current_scale = scale
-                        .parse::<f64>()
+                        .parse()
                         .unwrap_or(window.current_scale)
                         .clamp(0.5, 5.0);
                 }
@@ -146,7 +146,7 @@ impl Example {
         }
     }
 
-    fn scale_factor(&self, window: window::Id) -> f64 {
+    fn scale_factor(&self, window: window::Id) -> f32 {
         self.windows
             .get(&window)
             .map(|window| window.current_scale)
diff --git a/graphics/src/viewport.rs b/graphics/src/viewport.rs
index dc8e21d3..ea4cd8b2 100644
--- a/graphics/src/viewport.rs
+++ b/graphics/src/viewport.rs
@@ -5,19 +5,19 @@ use crate::core::{Size, Transformation};
 pub struct Viewport {
     physical_size: Size<u32>,
     logical_size: Size<f32>,
-    scale_factor: f64,
+    scale_factor: f32,
     projection: Transformation,
 }
 
 impl Viewport {
     /// Creates a new [`Viewport`] with the given physical dimensions and scale
     /// factor.
-    pub fn with_physical_size(size: Size<u32>, scale_factor: f64) -> Viewport {
+    pub fn with_physical_size(size: Size<u32>, scale_factor: f32) -> Viewport {
         Viewport {
             physical_size: size,
             logical_size: Size::new(
-                (size.width as f64 / scale_factor) as f32,
-                (size.height as f64 / scale_factor) as f32,
+                size.width as f32 / scale_factor,
+                size.height as f32 / scale_factor,
             ),
             scale_factor,
             projection: Transformation::orthographic(size.width, size.height),
@@ -45,7 +45,7 @@ impl Viewport {
     }
 
     /// Returns the scale factor of the [`Viewport`].
-    pub fn scale_factor(&self) -> f64 {
+    pub fn scale_factor(&self) -> f32 {
         self.scale_factor
     }
 
diff --git a/program/src/lib.rs b/program/src/lib.rs
index e25cdb22..d479d2f8 100644
--- a/program/src/lib.rs
+++ b/program/src/lib.rs
@@ -94,7 +94,7 @@ pub trait Program: Sized {
         theme::Base::base(theme)
     }
 
-    fn scale_factor(&self, _state: &Self::State, _window: window::Id) -> f64 {
+    fn scale_factor(&self, _state: &Self::State, _window: window::Id) -> f32 {
         1.0
     }
 }
@@ -171,7 +171,7 @@ pub fn with_title<P: Program>(
             self.program.style(state, theme)
         }
 
-        fn scale_factor(&self, state: &Self::State, window: window::Id) -> f64 {
+        fn scale_factor(&self, state: &Self::State, window: window::Id) -> f32 {
             self.program.scale_factor(state, window)
         }
     }
@@ -250,7 +250,7 @@ pub fn with_subscription<P: Program>(
             self.program.style(state, theme)
         }
 
-        fn scale_factor(&self, state: &Self::State, window: window::Id) -> f64 {
+        fn scale_factor(&self, state: &Self::State, window: window::Id) -> f32 {
             self.program.scale_factor(state, window)
         }
     }
@@ -332,7 +332,7 @@ pub fn with_theme<P: Program>(
             self.program.style(state, theme)
         }
 
-        fn scale_factor(&self, state: &Self::State, window: window::Id) -> f64 {
+        fn scale_factor(&self, state: &Self::State, window: window::Id) -> f32 {
             self.program.scale_factor(state, window)
         }
     }
@@ -411,7 +411,7 @@ pub fn with_style<P: Program>(
             self.program.theme(state, window)
         }
 
-        fn scale_factor(&self, state: &Self::State, window: window::Id) -> f64 {
+        fn scale_factor(&self, state: &Self::State, window: window::Id) -> f32 {
             self.program.scale_factor(state, window)
         }
     }
@@ -422,7 +422,7 @@ pub fn with_style<P: Program>(
 /// Decorates a [`Program`] with the given scale factor function.
 pub fn with_scale_factor<P: Program>(
     program: P,
-    f: impl Fn(&P::State, window::Id) -> f64,
+    f: impl Fn(&P::State, window::Id) -> f32,
 ) -> impl Program<State = P::State, Message = P::Message, Theme = P::Theme> {
     struct WithScaleFactor<P, F> {
         program: P,
@@ -431,7 +431,7 @@ pub fn with_scale_factor<P: Program>(
 
     impl<P: Program, F> Program for WithScaleFactor<P, F>
     where
-        F: Fn(&P::State, window::Id) -> f64,
+        F: Fn(&P::State, window::Id) -> f32,
     {
         type State = P::State;
         type Message = P::Message;
@@ -490,7 +490,7 @@ pub fn with_scale_factor<P: Program>(
             self.program.style(state, theme)
         }
 
-        fn scale_factor(&self, state: &Self::State, window: window::Id) -> f64 {
+        fn scale_factor(&self, state: &Self::State, window: window::Id) -> f32 {
             (self.scale_factor)(state, window)
         }
     }
@@ -573,7 +573,7 @@ pub fn with_executor<P: Program, E: Executor>(
             self.program.style(state, theme)
         }
 
-        fn scale_factor(&self, state: &Self::State, window: window::Id) -> f64 {
+        fn scale_factor(&self, state: &Self::State, window: window::Id) -> f32 {
             self.program.scale_factor(state, window)
         }
     }
@@ -638,7 +638,7 @@ impl<P: Program> Instance<P> {
     }
 
     /// Returns the current scale factor of the [`Instance`].
-    pub fn scale_factor(&self, window: window::Id) -> f64 {
+    pub fn scale_factor(&self, window: window::Id) -> f32 {
         self.program.scale_factor(&self.state, window)
     }
 }
diff --git a/src/application.rs b/src/application.rs
index e735218b..d8f7862b 100644
--- a/src/application.rs
+++ b/src/application.rs
@@ -387,7 +387,7 @@ impl<P: Program> Application<P> {
     /// Sets the scale factor of the [`Application`].
     pub fn scale_factor(
         self,
-        f: impl Fn(&P::State) -> f64,
+        f: impl Fn(&P::State) -> f32,
     ) -> Application<
         impl Program<State = P::State, Message = P::Message, Theme = P::Theme>,
     > {
diff --git a/src/daemon.rs b/src/daemon.rs
index 2074cf71..05d276c3 100644
--- a/src/daemon.rs
+++ b/src/daemon.rs
@@ -232,7 +232,7 @@ impl<P: Program> Daemon<P> {
     /// Sets the scale factor of the [`Daemon`].
     pub fn scale_factor(
         self,
-        f: impl Fn(&P::State, window::Id) -> f64,
+        f: impl Fn(&P::State, window::Id) -> f32,
     ) -> Daemon<
         impl Program<State = P::State, Message = P::Message, Theme = P::Theme>,
     > {
diff --git a/test/src/lib.rs b/test/src/lib.rs
index 636b8173..30b08176 100644
--- a/test/src/lib.rs
+++ b/test/src/lib.rs
@@ -462,7 +462,7 @@ where
             screenshot: window::Screenshot::new(
                 rgba,
                 physical_size,
-                f64::from(scale_factor),
+                scale_factor,
             ),
             renderer: self.renderer.name(),
         })
diff --git a/tiny_skia/src/lib.rs b/tiny_skia/src/lib.rs
index ca00737f..e06c7820 100644
--- a/tiny_skia/src/lib.rs
+++ b/tiny_skia/src/lib.rs
@@ -72,7 +72,7 @@ impl Renderer {
         damage: &[Rectangle],
         background_color: Color,
     ) {
-        let scale_factor = viewport.scale_factor() as f32;
+        let scale_factor = viewport.scale_factor();
 
         self.layers.flush();
 
@@ -405,8 +405,7 @@ impl renderer::Headless for Renderer {
         scale_factor: f32,
         background_color: Color,
     ) -> Vec<u8> {
-        let viewport =
-            Viewport::with_physical_size(size, f64::from(scale_factor));
+        let viewport = Viewport::with_physical_size(size, scale_factor);
 
         window::compositor::screenshot(self, &viewport, background_color)
     }
diff --git a/wgpu/src/lib.rs b/wgpu/src/lib.rs
index a24677bd..e55ad9a4 100644
--- a/wgpu/src/lib.rs
+++ b/wgpu/src/lib.rs
@@ -302,7 +302,7 @@ impl Renderer {
         encoder: &mut wgpu::CommandEncoder,
         viewport: &Viewport,
     ) {
-        let scale_factor = viewport.scale_factor() as f32;
+        let scale_factor = viewport.scale_factor();
 
         self.text_viewport
             .update(&self.engine.queue, viewport.physical_size());
@@ -464,7 +464,7 @@ impl Renderer {
         #[cfg(any(feature = "svg", feature = "image"))]
         let image_cache = self.image_cache.borrow();
 
-        let scale_factor = viewport.scale_factor() as f32;
+        let scale_factor = viewport.scale_factor();
         let physical_bounds = Rectangle::<f32>::from(Rectangle::with_size(
             viewport.physical_size(),
         ));
@@ -879,7 +879,7 @@ impl renderer::Headless for Renderer {
         background_color: Color,
     ) -> Vec<u8> {
         self.screenshot(
-            &Viewport::with_physical_size(size, f64::from(scale_factor)),
+            &Viewport::with_physical_size(size, scale_factor),
             background_color,
         )
     }
diff --git a/winit/src/conversion.rs b/winit/src/conversion.rs
index 4b9fcc0d..6f22405d 100644
--- a/winit/src/conversion.rs
+++ b/winit/src/conversion.rs
@@ -13,6 +13,7 @@ use crate::core::{Event, Point, Size};
 pub fn window_attributes(
     settings: window::Settings,
     title: &str,
+    scale_factor: f32,
     primary_monitor: Option<winit::monitor::MonitorHandle>,
     _id: Option<String>,
 ) -> winit::window::WindowAttributes {
@@ -21,8 +22,8 @@ pub fn window_attributes(
     attributes = attributes
         .with_title(title)
         .with_inner_size(winit::dpi::LogicalSize {
-            width: settings.size.width,
-            height: settings.size.height,
+            width: settings.size.width * scale_factor,
+            height: settings.size.height * scale_factor,
         })
         .with_maximized(settings.maximized)
         .with_fullscreen(
@@ -138,7 +139,7 @@ pub fn window_attributes(
 /// Converts a winit window event into an iced event.
 pub fn window_event(
     event: winit::event::WindowEvent,
-    scale_factor: f64,
+    scale_factor: f32,
     modifiers: winit::keyboard::ModifiersState,
 ) -> Option<Event> {
     use winit::event::Ime;
@@ -146,7 +147,7 @@ pub fn window_event(
 
     match event {
         WindowEvent::Resized(new_size) => {
-            let logical_size = new_size.to_logical(scale_factor);
+            let logical_size = new_size.to_logical(f64::from(scale_factor));
 
             Some(Event::Window(window::Event::Resized(Size {
                 width: logical_size.width,
@@ -157,7 +158,7 @@ pub fn window_event(
             Some(Event::Window(window::Event::CloseRequested))
         }
         WindowEvent::CursorMoved { position, .. } => {
-            let position = position.to_logical::<f64>(scale_factor);
+            let position = position.to_logical::<f64>(f64::from(scale_factor));
 
             Some(Event::Mouse(mouse::Event::CursorMoved {
                 position: Point::new(position.x as f32, position.y as f32),
@@ -313,7 +314,7 @@ pub fn window_event(
         }
         WindowEvent::Moved(position) => {
             let winit::dpi::LogicalPosition { x, y } =
-                position.to_logical(scale_factor);
+                position.to_logical(f64::from(scale_factor));
 
             Some(Event::Window(window::Event::Moved(Point::new(x, y))))
         }
@@ -513,9 +514,9 @@ pub fn modifiers(
 /// Converts a physical cursor position to a logical `Point`.
 pub fn cursor_position(
     position: winit::dpi::PhysicalPosition<f64>,
-    scale_factor: f64,
+    scale_factor: f32,
 ) -> Point {
-    let logical_position = position.to_logical(scale_factor);
+    let logical_position = position.to_logical(f64::from(scale_factor));
 
     Point::new(logical_position.x, logical_position.y)
 }
@@ -526,11 +527,12 @@ pub fn cursor_position(
 /// [`iced`]: https://github.com/iced-rs/iced/tree/0.12
 pub fn touch_event(
     touch: winit::event::Touch,
-    scale_factor: f64,
+    scale_factor: f32,
 ) -> touch::Event {
     let id = touch::Finger(touch.id);
     let position = {
-        let location = touch.location.to_logical::<f64>(scale_factor);
+        let location =
+            touch.location.to_logical::<f64>(f64::from(scale_factor));
 
         Point::new(location.x as f32, location.y as f32)
     };
diff --git a/winit/src/lib.rs b/winit/src/lib.rs
index 0ad2c507..edfc7783 100644
--- a/winit/src/lib.rs
+++ b/winit/src/lib.rs
@@ -310,6 +310,7 @@ where
                                 id,
                                 settings,
                                 title,
+                                scale_factor,
                                 monitor,
                                 on_open,
                             } => {
@@ -326,6 +327,7 @@ where
                                     conversion::window_attributes(
                                         settings,
                                         &title,
+                                        scale_factor,
                                         monitor
                                             .or(event_loop.primary_monitor()),
                                         self.id.clone(),
@@ -480,6 +482,7 @@ enum Control {
         title: String,
         monitor: Option<winit::monitor::MonitorHandle>,
         on_open: oneshot::Sender<window::Id>,
+        scale_factor: f32,
     },
 }
 
@@ -1130,6 +1133,7 @@ fn run_action<'a, P, C>(
                         id,
                         settings,
                         title: program.title(id),
+                        scale_factor: program.scale_factor(id),
                         monitor,
                         on_open: channel,
                     })
@@ -1234,7 +1238,7 @@ fn run_action<'a, P, C>(
                     let size = window
                         .raw
                         .inner_size()
-                        .to_logical(window.raw.scale_factor());
+                        .to_logical(f64::from(window.state.scale_factor()));
 
                     let _ = channel.send(Size::new(size.width, size.height));
                 }
diff --git a/winit/src/window/state.rs b/winit/src/window/state.rs
index e17b32a3..c345a846 100644
--- a/winit/src/window/state.rs
+++ b/winit/src/window/state.rs
@@ -15,7 +15,7 @@ where
     P::Theme: theme::Base,
 {
     title: String,
-    scale_factor: f64,
+    scale_factor: f32,
     viewport: Viewport,
     viewport_version: u64,
     cursor_position: Option<winit::dpi::PhysicalPosition<f64>>,
@@ -60,7 +60,7 @@ where
 
             Viewport::with_physical_size(
                 Size::new(physical_size.width, physical_size.height),
-                window.scale_factor() * scale_factor,
+                window.scale_factor() as f32 * scale_factor,
             )
         };
 
@@ -99,7 +99,7 @@ where
     }
 
     /// Returns the current scale factor of the [`Viewport`] of the [`State`].
-    pub fn scale_factor(&self) -> f64 {
+    pub fn scale_factor(&self) -> f32 {
         self.viewport.scale_factor()
     }
 
@@ -144,7 +144,7 @@ where
 
                 self.viewport = Viewport::with_physical_size(
                     size,
-                    window.scale_factor() * self.scale_factor,
+                    window.scale_factor() as f32 * self.scale_factor,
                 );
 
                 self.viewport_version = self.viewport_version.wrapping_add(1);
@@ -157,7 +157,7 @@ where
 
                 self.viewport = Viewport::with_physical_size(
                     size,
-                    new_scale_factor * self.scale_factor,
+                    *new_scale_factor as f32 * self.scale_factor,
                 );
 
                 self.viewport_version = self.viewport_version.wrapping_add(1);
@@ -208,7 +208,7 @@ where
         {
             self.viewport = Viewport::with_physical_size(
                 Size::new(new_size.width, new_size.height),
-                window.scale_factor() * new_scale_factor,
+                window.scale_factor() as f32 * new_scale_factor,
             );
             self.viewport_version = self.viewport_version.wrapping_add(1);