your details

Work out your numbers

Your results appear here

Fill in your height, weight and age on the left, choose your activity level and goal, then press Calculate.

These figures are estimates from standard formulas (Mifflin-St Jeor), not medical advice. Track how your weight moves over two to three weeks, then adjust. If you are pregnant, managing a medical condition, or planning a large change in how you eat, speak to a doctor or a registered dietitian first.