This is a common internet question, but the calories burned from a single fart are so tiny that they are not practically measurable. Meaningful calorie burn comes from basal metabolism, movement, and digestion. Focusing on micro-calorie trivia can distract from what truly matters: managing energy balance. If fat loss is your goal, focus on total daily steps, weekly training, adequate protein, and calorie control. Invest in measurable behaviors instead of novelty metrics.