The fridge capacity needed for two people can vary depending on their eating habits and lifestyle. As a general guideline, a fridge with a capacity of around 200 to 300 litres should be sufficient for most two-person households. So, if your fridge is smaller, it can be very interesting to buy an additional fridge, such as a smaller tabletop model. However, it is important to take into account individual preferences and the amount of perishable food and drinks to be stored.