This is a function of a number of things. It depends on who is dependent upon you financially and how long they will be dependent on you financially. It depends on what other assets you have. You may have sufficient investments to handle all your obligations. It depends on the life style of your family.
Life style is a tricky question.
Feelings range all the way from providing enough life insurance to actually improve the life style and security of the family to providing just enough to avoid living in a homeless shelter. One approach makes you worth more dead than alive. The other makes your family wish they could kill you all over again. The responses can make quite a difference. Remember every dollar you pay in insurance premium is a known loss.