diff --git a/examples/windowsize/main.go b/examples/windowsize/main.go
index 596d82561..f312e6fb1 100644
--- a/examples/windowsize/main.go
+++ b/examples/windowsize/main.go
@@ -167,6 +167,8 @@ FPS: %0.2f`, x, y, ebiten.CurrentFPS())
 }
 
 func main() {
+	fmt.Printf("Device scale: %0.2f\n", ebiten.DeviceScale())
+
 	var err error
 	gophersImage, _, err = ebitenutil.NewImageFromFile(ebitenutil.JoinStringsIntoFilePath("_resources", "images", "gophers.jpg"), ebiten.FilterNearest)
 	if err != nil {
diff --git a/run.go b/run.go
index d81ec05fa..088715748 100644
--- a/run.go
+++ b/run.go
@@ -20,6 +20,7 @@ import (
 
 	"github.com/hajimehoshi/ebiten/internal/audiobinding"
 	"github.com/hajimehoshi/ebiten/internal/clock"
+	"github.com/hajimehoshi/ebiten/internal/devicescale"
 	"github.com/hajimehoshi/ebiten/internal/ui"
 )
 
@@ -283,3 +284,7 @@ func SetRunnableInBackground(runnableInBackground bool) {
 func SetWindowIcon(iconImages []image.Image) {
 	ui.SetWindowIcon(iconImages)
 }
+
+func DeviceScale() float64 {
+	return devicescale.DeviceScale()
+}