What are the limits of the Muslim woman's awrah in front of Muslim and non-Muslim women, and what are the limits of her awrah in front of her male mahrams?

The 'awrah (intimate parts) of a Muslim woman in front of other Muslim women is from the navel to the knee. In front of non-Muslim women, she must cover her entire body except for the face, hands, and what is normally uncovered when working. As for her 'awrah in front of her Mahrams (unmarriageable kin), it is the entire body except for the face, head, hands, and feet. It is forbidden for her to uncover her chest, breasts, and similar areas, just as it is forbidden for her Mahrams to see these parts of her.