How many calories are in coconut oil?
A level tablespoon of coconut oil (about 13.5 g) is roughly 120 kcal, a teaspoon is about 40 kcal, and 100 g is around 860 kcal. That is the same 9 kcal per gram as every other cooking fat. Coconut oil is unusual in its fatty acid make-up and ordinary in its energy, and the gap between those two facts is where the confusion lives.
Per portion
| Portion | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| 1 teaspoon, melted and level (4.5 g) | ~40 kcal | 0 g | 0 g | 4.5 g |
| 1 tablespoon, melted and level (13.5 g) | ~120 kcal | 0 g | 0 g | 13.5 g |
| 1 tablespoon scooped from a set jar (18–20 g) | 160–180 kcal | 0 g | 0 g | 18–20 g |
| Tempering or a thoran for four (15 g) | ~135 kcal | 0 g | 0 g | 15 g |
| 100 g (about 7 tablespoons) | ~860 kcal | 0 g | 0 g | 100 g |
What changes the number
Solid or liquid. Coconut oil melts at about 24 °C (75 °F), so “a tablespoon” means two quantities. Scooped from a set jar it is commonly 18–20 g; melted and levelled it is 13.5 g. That is a 50 kcal gap per spoon, decided by the weather.
Virgin or refined. Cold-pressed virgin, refined, bleached and deodorised all land within a per cent or two of 860 kcal per 100 g. Virgin keeps the coconut aroma; neither grade affects the energy.
How much goes in. The pour, and how much the food takes up, work as they do for any fat; that arithmetic is on the olive oil page.
Uses where it is not swallowed. On hair or skin it is zero. Oil pulling is close to zero, since the oil is spat out.
Where it fits in a deficit
At the top of the density ladder, with no protein, fibre or water, so nothing for fullness per calorie. What it has instead is an aroma no other fat reproduces, which argues for using it where it is tasted — a tempering, a thoran, the finish of a curry — rather than as the bulk frying medium, where 40 g vanishes into the pan.
The spoonful in coffee is worth naming: 120 kcal of fat in a drink that had none, which does not register as food, resting on the claim in the next section. The same nut gives coconut water at about 19 kcal per 100 ml, a forty-fold difference by weight — “coconut” is not a calorie level.
MCTs and the metabolism claim
The argument runs: coconut oil is a medium-chain triglyceride oil, MCTs are burned rather than stored, therefore coconut oil raises metabolism. Each step is weaker than the one before it.
Most coconut oil is not MCT oil. Around half its fat is lauric acid, medium-chain by carbon count but absorbed and handled largely like a long-chain fat. The two that behave as the claim describes, caprylic and capric acid, make up only about 10–15% of coconut oil. Commercial MCT oil is a concentrate of those two — a different product.
The effect is small where it exists. Trials swapping MCTs in for other fats tend to find energy expenditure and fat oxidation up modestly, plus a mild appetite effect. Pooled results for body weight over a few months cluster below a kilogram (2 lb), often without statistical significance, and at doses above what a cooking oil supplies. Against maintenance calories of 2,000–2,500 a day, that is inside the error of anyone’s food estimate.
It is not calorie-free, or even calorie-light. Pure MCT oil is usually counted at about 8.3 kcal per gram rather than 9 — some 7% lower, and coconut oil is not pure MCT oil. A tablespoon is 120 kcal whatever the jar says.
On composition, coconut oil is 80–90% saturated fat, and controlled feeding studies consistently show it raising LDL cholesterol relative to unsaturated oils, while also raising HDL. It is a flavouring fat with a long place in the cooking of the regions that grow it. What it is not is a free ingredient inside a calorie deficit.
Figures are typical values and vary by variety, size and preparation. General information, not medical advice.