There is no straightforward answer to this question as the cost of family health insurance in the UK can vary greatly depending on a number of factors, such as the ages and health conditions of the members of the family, the level of cover required, and the insurer chosen.
However, as a general guide, the average cost of family health insurance in the UK is typically around £1,500 per year. This figure is based on a number of recent studies and surveys, including a 2019 report from the Association of British Insurers (ABI).
Of course, it is important to remember that this is just an average, and the actual cost of health insurance for a particular family could be significantly higher or lower than this.