Dp

DpSample

@Composable
fun DpSample() {
    Box(
        Modifier.padding(
            10.dp, // Int
            10f.dp, // Float
            20.0.dp, // Double
            10.dp,
        )
    )
}

ToPxSample

@Composable
fun ToPxSample() {
    val lineThickness = 6.dp
    Canvas(Modifier.fillMaxSize()) {
        val lineThicknessPx = lineThickness.toPx()
        inset(lineThicknessPx / 2) { drawRect(Color.Red, style = Stroke(lineThicknessPx)) }
    }
}