Portion Size Calculator

Planning catering for a group can be tricky. This  calculator simplifies the process by providing sensible estimates based on typical UK portion sizes. First, select the style of meal you are preparing, as each dish has different components and portion requirements. Then, enter the number of adults and children attending. The tool calculates the total amount of each key ingredient needed, from meat and vegetables for a roast dinner to  pasta and sauce for an Italian meal.

All quantities are based on standard per-person serving sizes used in UK catering. These recommendations are a starting point, and it is always wise to consider the specific context of your event. For example, you might need more for big eaters or a longer event. It is often better to have slightly too much food than not enough.

While our calculator does the heavy lifting, it is useful to remember some general rules of thumb for common items when planning any meal.

These figures are a great baseline. For drinks, consider our wine calculator for specific amounts. For precise cooking, our cooking measurement converter can be a great help.