The amount of a postdoctoral stipend can vary significantly depending on the institution, country, and source of funding. In the United States, for example, the National Institutes of Health (NIH) provides guidelines for postdoctoral stipends that range from approximately $52,000 to $65,000 per year. In Europe, stipends may vary based on the specific country and funding agency, with countries like Germany and the UK offering competitive rates. It's essential to research the specific stipend amounts offered by different institutions and funding bodies.