Java 错误：不兼容的类型：Double不能转换为Float

为什么我会得到

错误:不兼容的类型:Double不能转换为Float

用下面的方法？

bmi.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {

        Float weightKg,heightmeter1,heightmeter2,TotalHeight,BMI;

        String sweight = kg.getText().toString();
        weightKg = Float.parseFloat(sweight);

        String sfeet = feet.getText().toString();
        float heightFeet = Float.parseFloat(sfeet);
        heightmeter1 =  heightFeet *0.3048;

        String sinch = inch.getText().toString();
        float heightInch = Float.parseFloat(sinch);
        heightmeter2 =heightInch*0.0254;

        TotalHeight = heightmeter1+heightmeter2;

        BMI = weightKg + (TotalHeight*TotalHeight);

       displaybmi.setText(" Your BMI Is = "+BMI+"  ");

    }
});

Android Studio在构建输出中向我展示

C:\Users\USER\Desktop\Social_Media\app\src\main\java\com\example\social_media\MainActivity.java:73: 错误:不兼容的类型:Double不能转换为Float
        heightmeter1 =  heightFeet *0.3048;
                                   ^
C:\Users\USER\Desktop\Social_Media\app\src\main\java\com\example\social_media\MainActivity.java:77: 错误:不兼容的类型:Double不能转换为Float
        heightmeter2 =heightInch*0.0254;
                                ^