It doesn't look ike that you can find a dedicated converter just for the purpose of html to apk conversion, i.e. to turn random .html page to APK package.
But you can certainly find certain frameworks (like PhoneGap) that can help you deploy your HTML based apps on mobile platforms, including the Android that uses APK.
This conversion entry was verified by us and conversion was flagged as wrong or not possible.
Usually this happens when the conversion would try to convert different types of data between each other, such as audio to image, or it is not possible because incompatibility between programs, caused by closed file formats, very limited support etc.
If you find entry that you feel is flagged as bad wrongly, please tell us in the discussion below with as much as information as possible so we can fix it.