Your estate consists of all property owned at death before it is distributed by Will, Trust, or intestacy laws. An estate may contain both real property (real estate) and personal property (all other property, including bank accounts, securities, jewelry, artwork, memorabilia and automobiles). It also includes your legal rights and interests in property of any kind.
To calculate the value of an estate, you can simply add the value of all of the assets. For instance, the value of real estate is the fair market value of the property at that moment in time.