How to lose the last two kilos They say the last two kilograms are the hardest to lose, but we’ve found a loophole.STEP 1.Calculate your baselineBasal metabolic rate (BMR) is the number of calories you’d burn per day if you were to lie in bed 24/7. It’s based on various factors including your height, age and body composition (a higher muscle to fat ratio will burn more calories even at rest). To calculate your BMR, plug your deets into this equation (known as the Harris-Benedict equation):BMR = 655 + (9.6 x weight in kg) + (1.8 x height in cm) – (4.7 x age in years)e.g. a 30-year-old female measuring 167 cm tall and weighing 54.5 kg would compute 655 + 523 + 302 – 141 to get a maintenance level daily calorie need of 1,339, or 5,624 kJ, per day (multiply calories by 4.2 to convert to kJ lingo).STEP 2.Body auditIf your numbers come in low, don’t panic. In addition to what you burn to maintain basic bodily functions, you need to add your other energy usage.