Calories in Lemon
29 calories per 100g (100g)
Lemons, raw, without peel contain just 29 calories per 100g, making them one of the lowest-calorie fruits you can add to your diet. A typical whole lemon (about 58g without peel) delivers only around 17 calories. Most of those calories come from carbohydrates, with a small boost of fiber and virtually no fat.
Calories by Portion Size
| Portion | Weight | Calories |
|---|---|---|
| 1 tsp lemon juice (approx. whole lemon squeezed, ~5g) | 5g | 1 |
| 1 tbsp lemon flesh (~15g) | 15g | 4 |
| 1 wedge (~24g) | 24g | 7 |
| ½ medium lemon, without peel (~29g) | 29g | 8 |
| 1 small lemon, without peel (~48g) | 48g | 14 |
| 1 medium lemon, without peel (~58g) | 58g | 17 |
| 1 large lemon, without peel (~75g) | 75g | 22 |
| 100g (USDA reference serving) | 100g | 29 |
Protein
1.1g
15% of calories
Carbs
9.32g
129% of calories
Fat
0.3g
9% of calories
How does this compare?
Lemons are among the lowest-calorie options in the Fruits and Fruit Juices category — far lighter than bananas (~89 cal/100g) or grapes (~67 cal/100g). They're comparable to other citrus fruits like limes (~30 cal/100g), making them an equally calorie-friendly choice.
Track Lemon in your daily plan
Sunn logs meals via WhatsApp and keeps you on track with your calorie and macro goals.
Start your free trialTips
- 1.
Use fresh lemon wedges or juice to add bright flavor to water, fish, and salads without meaningfully adding calories — a full wedge is only about 7 calories.
- 2.
Swap high-calorie dressings and sauces for a squeeze of lemon juice to cut overall calorie intake while keeping meals flavorful.
- 3.
Add lemon slices to sparkling water as a zero-effort, nearly calorie-free alternative to sugary sodas or flavored drinks.
- 4.
Because lemons are very low in sugar (2.5g per 100g), they won't spike your calorie count even if you use them generously in cooking.
- 5.
Track lemon juice separately from whole lemon flesh if you're logging calories precisely — squeezing out the juice leaves behind fiber and some pulp, slightly altering the calorie and fiber contribution.
Common Questions About Calories in Lemon
How many calories are in one whole lemon without peel?
One medium lemon without peel weighs approximately 58g and contains about 17 calories, based on the USDA rate of 0.29 calories per gram.
Are lemons good for weight loss?
Lemons are very low in calories (29 cal/100g) and can support a calorie-conscious diet when used to flavor food and water in place of higher-calorie ingredients. They are not a weight-loss treatment on their own.
How many calories are in lemon juice squeezed from one lemon?
One medium lemon yields roughly 30–50ml of juice (about 30–50g). At 0.29 calories per gram, that works out to approximately 9–14 calories for the juice alone.
Do lemons have carbs or sugar?
Yes — per 100g, lemons contain 9.32g of carbohydrates, of which 2.5g is sugar and 2.8g is fiber. A single wedge (~24g) has about 2.2g of carbs and 0.6g of sugar.