Calories in 1/2 Cup of Lemon Juice

1/2 cup of lemon juice (122 g) has 27 calories. That is 1% of a 2,000 calorie diet.

The calories come from 0.4 g of protein, 0.3 g of fat and 8.4 g of carbohydrates, a split of 4% protein, 7% fat and 89% carbs. For comparison, 1/4 cup of lemon juice has 13 and 3/4 cup of lemon juice has 40 calories. Burning 27 calories takes about 5 minutes of brisk walking or 2 minutes of running for a 155 lb adult, based on Harvard Health Publishing activity estimates.