Java tutorial
//package com.java2s; //License from project: Apache License import android.graphics.Bitmap; import java.io.ByteArrayOutputStream; public class Main { private static long getSizeOfBitmap(Bitmap bitmap) { ByteArrayOutputStream baos = new ByteArrayOutputStream(); bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos); long length = baos.toByteArray().length / 1024; return length; } }