Carbs in Lemon Juice

Lemon Juice (per 100 g) contains 6.9g total carbs, 6.6g net carbs, 0.2g fat, 0.3g protein, and 22 calories.

Last updated June 10, 2026 · Reviewed by Jordan Lee, RD, Registered Dietitian

Lemon Juice
6.6g
Net carbs
6.9g
Total carbs
0.3g
Fiber
0.3g
Protein
0.2g
Fat
22
Calories

Values per 100 g.

Carbs by serving size

ServingNet carbsTotal carbsCalories
100 g (3.5 oz)6.6g6.9g22
1 oz (28 g)1.8g1.9g6

Nutrition facts

NutrientAmount (per 100 g)
Calories22
Total carbs6.9g
Net carbs6.6g
Fiber0.3g
Sugar2.5g
Sugar alcohols0g
Protein0.3g
Fat0.2g
Sodium1mg
Potassium103mg

Source: USDA FoodData Central (SR Legacy). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.

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Frequently asked questions

How many carbs are in lemon juice?
Lemon Juice has 6.9g of total carbs and 6.6g of net carbs per 100 grams.
How many net carbs are in lemon juice?
Lemon Juice has 6.6g of net carbs per 100 grams (total carbs 6.9g minus 0.3g fiber).
Is lemon juice keto-friendly?
Lemon Juice has 6.6g net carbs per 100g, which is high for keto. Enjoy it in small portions or save it for higher-carb days.
How many calories are in lemon juice?
Lemon Juice has 22 calories per 100 grams.

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