Ketchup is a tomato-based condiment commonly served with potatoes, burgers, sandwiches and other savoury foods. Its calories come mainly from carbohydrates, including sugars naturally present in tomatoes and, in many recipes, added sugar.
Unlike mayonnaise or oil-rich dressings, ketchup usually contains very little fat. However, the nutritional values can differ considerably between brands and recipes.
The most accurate way to count ketchup calories is to use the product's nutrition label and the weight of the portion actually eaten.
How many calories are in ketchup?
Many conventional tomato ketchups provide approximately 90–120 kcal per 100 g. Products with less added sugar may contain fewer calories, although the actual value depends on their complete formulation.
For the portion calculations below, we use 100 kcal per 100 g as a convenient illustrative value for regular ketchup.
| Ketchup type | Calorie considerations |
|---|---|
| Regular tomato ketchup | Often approximately 90–120 kcal per 100 g |
| No-added-sugar ketchup | Can be lower, but naturally occurring sugars remain |
| Reduced-sugar ketchup | Depends on how much sugar is reduced and what replaces it |
| Homemade ketchup | Depends on tomatoes, sugar, other ingredients and final yield |
| Spicy ketchup | Chili and spices do not reliably predict calorie content |
| Organic ketchup | Organic certification does not establish calorie content |
These descriptions are not substitutes for the label of a specific product.
Two bottles that look similar can contain different amounts of tomato concentrate, sugar, vinegar, salt and water.
Calories in a teaspoon and tablespoon of ketchup
A teaspoon or tablespoon measures volume, not a fixed weight. The amount varies with the spoon and how it is filled.
For this table, we assume:
- One teaspoon contains approximately 5 g of ketchup.
- One tablespoon contains approximately 15 g.
- The ketchup provides 100 kcal per 100 g.
| Portion | Assumed weight | Estimated calories |
|---|---|---|
| 1 teaspoon | 5 g | 5 kcal |
| 2 teaspoons | 10 g | 10 kcal |
| 1 tablespoon | 15 g | 15 kcal |
| 2 tablespoons | 30 g | 30 kcal |
| 3 tablespoons | 45 g | 45 kcal |
| 50 g | 50 g | 50 kcal |
| 100 g | 100 g | 100 kcal |
These are calculations, not measurements of every brand.
A ketchup containing 115 kcal per 100 g provides approximately 17 kcal in a 15 g serving. A product containing 60 kcal per 100 g provides 9 kcal in the same serving.
Formula: calories = kcal per 100 g × portion weight in grams ÷ 100.
Weighing the amount squeezed onto a plate is generally more reliable than estimating how many tablespoons it represents.
Ketchup nutrition: carbohydrates, sugar and fat
Traditional ketchup is predominantly a carbohydrate-containing condiment.
Tomatoes contribute naturally occurring sugars and other compounds. Many commercial recipes also contain added sugar or other sweetening ingredients.
The following values illustrate the general nutritional pattern rather than a particular product.
| Nutrient | General characteristic |
|---|---|
| Calories | Usually moderate per 100 g compared with oil-based sauces |
| Carbohydrates | Main energy source |
| Sugars | Natural tomato sugars and potentially added sugar |
| Fat | Usually very low |
| Protein | Usually low |
| Fibre | Generally limited in typical serving sizes |
| Salt | Can be substantial relative to the small serving size |
A hypothetical ketchup containing 24 g carbohydrates per 100 g provides 3.6 g carbohydrates in a 15 g tablespoon.
If its label lists 20 g sugars per 100 g, the same 15 g portion contains 3 g sugars.
The label's sugars figure generally includes both naturally occurring and added sugars; it does not automatically indicate how much sugar was added during production.
Regular ketchup vs no-added-sugar ketchup
The term no added sugar does not necessarily mean sugar-free.
Tomatoes naturally contain sugars. A no-added-sugar ketchup may therefore still list sugars in its nutrition declaration.
Consider two hypothetical products:
| Product | kcal per 100 g | kcal in 30 g |
|---|---|---|
| Regular ketchup A | 110 | 33 |
| No-added-sugar ketchup B | 55 | 17 |
The difference in this example is approximately 16 kcal per 30 g serving.
These are illustrative values, not verified nutrition facts for particular brands.
A lower-sugar product may also differ in salt content, acidity, sweeteners and tomato concentration.
When comparing products, examine the calories, total carbohydrates, sugars, salt and ingredients for the same 100 g quantity.
How much sugar is in a serving?
Suppose a regular ketchup label lists 22 g sugars per 100 g.
The sugar content of different portions would be:
| Ketchup portion | Calculated sugars |
|---|---|
| 5 g | 1.1 g |
| 15 g | 3.3 g |
| 30 g | 6.6 g |
| 50 g | 11 g |
These figures apply only to the hypothetical product containing 22 g sugars per 100 g.
To calculate your own portion:
Sugars in grams = labelled sugars per 100 g × portion weight ÷ 100.
For dietary guidance, it is important to distinguish total sugars shown on a label from free sugars as defined in public-health recommendations.
The World Health Organization recommends limiting free sugars to less than 10% of total daily energy intake, with additional potential benefits below 5%. That recommendation concerns the overall diet, not ketchup alone.
Does ketchup contain a lot of salt?
Ketchup may contribute sodium or salt, depending on the recipe.
In European nutrition labels, salt is generally declared in grams per 100 g.
For example, a ketchup containing 2.0 g salt per 100 g provides:
| Portion | Salt |
|---|---|
| 10 g | 0.20 g |
| 15 g | 0.30 g |
| 30 g | 0.60 g |
| 50 g | 1.00 g |
These are examples based on an assumed product, not universal values.
A condiment can contribute relatively little energy but still be relevant to daily salt intake.
For people monitoring salt, the product label and portion weight matter more than calorie content alone.
How many calories does ketchup add to a meal?
Ketchup is normally eaten with other foods. Its calorie contribution should be counted separately from the main dish.
Consider a plate containing:
- A portion of oven-baked potatoes.
- A protein food.
- Vegetables.
- 30 g ketchup.
At 100 kcal per 100 g, the ketchup adds 30 kcal.
The potatoes, cooking oil, protein food and vegetables contribute additional energy.
If the same meal contains 60 g ketchup, the condiment contributes 60 kcal.
The difference is 30 kcal, assuming the same ketchup.
The example does not establish the total calories of the meal because the other ingredients have not been specified.
Ketchup vs mayonnaise: which has more calories?
Regular mayonnaise is typically much more energy-dense than regular ketchup because it contains a high proportion of oil.
A simplified illustrative comparison:
| Condiment | Assumed kcal per 100 g | Calories in 20 g |
|---|---|---|
| Regular ketchup | 100 | 20 |
| Regular mayonnaise | 680 | 136 |
These are example values.
Ketchup generally contains more carbohydrates and sugars, whereas mayonnaise generally contains much more fat.
The lower-calorie option is not automatically the best choice for every person or every meal. Nutritional goals, salt, ingredients and serving size also matter.
A direct product comparison should always use actual labels.
Homemade ketchup: why the final weight matters
Homemade ketchup may be prepared from tomatoes or tomato purée, vinegar, sugar, onion, spices and salt.
To calculate its calories accurately:
- Weigh all ingredients before cooking.
- Add their energy values.
- Cook the sauce to the desired consistency.
- Weigh the finished edible ketchup.
- Divide the total ingredient calories by the final weight and multiply by 100.
For example, suppose all ingredients together contribute 300 kcal and the finished sauce weighs 250 g.
300 ÷ 250 × 100 = 120 kcal per 100 g.
A 20 g portion then contains 24 kcal.
If the sauce is reduced further and finishes at 200 g without changing the total energy, it contains 150 kcal per 100 g.
Evaporating water increases calories per 100 g without adding calories to the batch.
This is why homemade ketchup cannot be assigned a reliable calorie value from its ingredient list alone.
How to measure ketchup accurately
For a bottle of ketchup, a kitchen scale provides a straightforward method.
- Put the plate on the scale and tare it.
- Add the ketchup.
- Record the weight in grams.
- Check the product's calories per 100 g.
- Calculate the calories for the measured portion.
Alternatively, weigh the bottle before and after dispensing. The difference is the amount used.
If ketchup is mixed into a larger sauce or recipe, record the full amount added and divide it according to the quantity eaten.
Avoid counting the same ketchup twice as both a separate condiment and an ingredient in the recipe.
Frequently asked questions
How many calories are in one tablespoon of ketchup?
At an illustrative 15 g per tablespoon and 100 kcal per 100 g, approximately 15 kcal.
How many calories are in two tablespoons?
At an assumed combined weight of 30 g and 100 kcal per 100 g, approximately 30 kcal.
Is ketchup high in sugar?
Some conventional products contain considerable sugar per 100 g, but the amount in a meal depends on the portion. Check the specific label.
Is no-added-sugar ketchup calorie-free?
No. Tomatoes and other ingredients can still contribute energy.
Is ketchup lower in calories than mayonnaise?
Regular ketchup is generally much lower in calories per 100 g than regular full-fat mayonnaise. Compare actual products and portions.
Does cooking homemade ketchup reduce its calories?
Cooking may evaporate water and increase calories per 100 g. It does not automatically reduce the total energy in the batch.
Sources and interpretation
For reference food-composition data, consult USDA FoodData Central.
For European food-labelling rules, see Regulation (EU) No 1169/2011.
For recommendations on free-sugar intake, see the World Health Organization guideline on sugars.
All portion tables and product comparisons above are illustrative calculations. Use the actual ketchup label and weighed serving for individual nutrition tracking.