Calories in Lemon

17kcal per 1 lemon (58 g)

29 kcal per 100 g · about 1% of a 2,000-kcal day

You rarely eat a whole lemon, but the juice you squeeze over food adds almost nothing to the count. Even a full one is only about 17 calories.

Lemon nutrition facts

NutrientPer 100 gPer 1 lemon
Calories29 kcal17 kcal
Protein1.1 g0.6 g
Carbs9.3 g5.4 g
Fat0.3 g0.2 g
Fiber2.8 g1.6 g
Sugar2.5 g1.5 g

Where the calories come from

Lemon calories by serving size

ServingCaloriesProteinCarbsFat
1 oz (28 g)8 kcal0.3 g2.6 g0.1 g
50 g15 kcal0.6 g4.7 g0.2 g
1 lemon (58 g)17 kcal0.6 g5.4 g0.2 g
100 g29 kcal1.1 g9.3 g0.3 g
200 g58 kcal2.2 g18.6 g0.6 g
250 g73 kcal2.8 g23.3 g0.8 g

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Values based on USDA FoodData Central reference entries. Actual nutrition varies with variety, preparation, and portion. © 2026 NibbleCal.