How many calories are in cooking oil and butter?

Short answer

A tablespoon of olive oil has about 119 calories, and a tablespoon of butter about 102, according to USDA FoodData Central. Most liquid cooking oils land between 119 and 124 calories per tablespoon because they are almost pure fat. The number is easy to remember. The amount is the hard part, because oil is quick to pour and hard to see once it's in the food.

On this page

How many calories are in common cooking fats?

Between about 95 and 125 calories per tablespoon for everything in this table, according to USDA FoodData Central. Saturated fat varies far more than calories do.

FatCalories per tablespoonSaturated fat per tablespoon
Olive oil1191.9 g
Canola oil1241.0 g
Soybean oil1202.1 g
Peanut oil1192.3 g
Sesame oil1201.9 g
Coconut oil12111.2 g
Butter, salted1027.3 g
Lard1155.0 g
Margarine, 80% fat stick1002.1 g
Mayonnaise, regular941.6 g
USDA FoodData Central values, using USDA's weight for a tablespoon of each fat, from 12.8 g for lard to 14.2 g for butter.

The small differences between oils come from how much a tablespoon of each weighs, not from the oils themselves. Every oil in the table lists 884 calories per 100 grams except coconut oil, at 892. Butter comes in lower because it is about 81 percent fat and 16 percent water.

Why does cooking oil matter so much?

Because it packs a lot of calories into a small amount that's easy to miss. One tablespoon of olive oil has about as many calories as 4 cups of chopped raw broccoli, which USDA lists at about 31 calories a cup. Even a teaspoon of oil adds about 40.

Oil is also everywhere in prepared food and mostly invisible. In Google's Nutrition5k study of about 5,000 cafeteria plates, olive oil was among the most frequently used ingredients, alongside salt, pepper and vinegar. Once it soaks into rice or vegetables, it's hard for your eye or a camera to tell how much is there.

Frying shows the effect clearly. USDA lists fast-food french fries at 312 calories and 14.7 grams of fat per 100 grams, compared with 93 calories and 0.1 grams of fat for a baked potato with skin. A medium order of fries comes to about 365 calories, and a medium baked potato to about 161.

How do you log the oil you cook with?

Measure it, then split it fairly between the people eating.

  • Use a spoon, not a pour. Measuring oil into the pan turns a guess into a number.
  • Divide shared dishes. Two tablespoons of olive oil in a dish for 4 people is about 60 calories each.
  • Log all of it if you're unsure. Some oil stays in the pan, but you can't know how much, so counting it all is the cautious choice.
  • Don't trust "0 calories" on a spray. USDA lists a one-third-second spray of an original cooking spray at 0.3 grams, about 2 calories. FDA rules let labels show any serving under 5 calories as zero, so longer sprays add up.
  • Count spreads and dressings. A pat of butter is about 36 calories, and a tablespoon of regular ranch dressing about 65.

Does the type of fat matter?

For calories, barely. For saturated fat, a great deal: a tablespoon of coconut oil has about 11.2 grams, butter about 7.3 and canola oil about 1.0. On a Nutrition Facts label, the Daily Value for saturated fat is 20 grams, so one tablespoon of coconut oil supplies more than half of it.

The 2025–2030 Dietary Guidelines say saturated fat should generally not exceed 10 percent of daily calories. When cooking with or adding fats, they suggest putting oils with essential fatty acids, such as olive oil, first, with butter or beef tallow as other options.

Common questions

Is butter lower in calories than oil?

Yes, by about 17 to 22 calories per tablespoon. Butter is about 16 percent water, so a tablespoon of it holds less fat than a tablespoon of oil.

How many calories are in a teaspoon of oil?

About 40. USDA lists a teaspoon of olive, canola or soybean oil at 4.5 grams, and all three have 884 calories per 100 grams.

Is olive oil a better choice than butter?

For calories they're close. The 2025–2030 Dietary Guidelines put oils with essential fatty acids, such as olive oil, first when you cook with fat, and olive oil has far less saturated fat per tablespoon than butter.

Sources

  1. U.S. Department of Agriculture, FoodData Central. Oil, olive, salad or cooking (FDC ID 171413). fdc.nal.usda.gov
  2. U.S. Department of Agriculture, FoodData Central. Oil, canola (FDC ID 172336). fdc.nal.usda.gov
  3. U.S. Department of Agriculture, FoodData Central. Oil, soybean, salad or cooking (FDC ID 171411). fdc.nal.usda.gov
  4. U.S. Department of Agriculture, FoodData Central. Oil, peanut, salad or cooking (FDC ID 171410). fdc.nal.usda.gov
  5. U.S. Department of Agriculture, FoodData Central. Oil, sesame, salad or cooking (FDC ID 171016). fdc.nal.usda.gov
  6. U.S. Department of Agriculture, FoodData Central. Oil, coconut (FDC ID 171412). fdc.nal.usda.gov
  7. U.S. Department of Agriculture, FoodData Central. Butter, salted (FDC ID 173410). fdc.nal.usda.gov
  8. U.S. Department of Agriculture, FoodData Central. Lard (FDC ID 171401). fdc.nal.usda.gov
  9. U.S. Department of Agriculture, FoodData Central. Margarine, regular, 80% fat, composite, stick, with salt (FDC ID 172346). fdc.nal.usda.gov
  10. U.S. Department of Agriculture, FoodData Central. Salad dressing, mayonnaise, regular (FDC ID 171009). fdc.nal.usda.gov
  11. U.S. Department of Agriculture, FoodData Central. Salad dressing, ranch dressing, regular (FDC ID 173592). fdc.nal.usda.gov
  12. U.S. Department of Agriculture, FoodData Central. Oil, PAM cooking spray, original (FDC ID 171430). fdc.nal.usda.gov
  13. U.S. Department of Agriculture, FoodData Central. Broccoli, raw (FDC ID 170379). fdc.nal.usda.gov
  14. U.S. Department of Agriculture, FoodData Central. Fast foods, potato, french fried in vegetable oil (FDC ID 170698). fdc.nal.usda.gov
  15. U.S. Department of Agriculture, FoodData Central. Potatoes, baked, flesh and skin, without salt (FDC ID 170093). fdc.nal.usda.gov
  16. Thames Q, Karpur A, Norris W, et al. Nutrition5k: Towards Automatic Nutritional Understanding of Generic Food. CVPR. 2021. openaccess.thecvf.com
  17. 21 CFR 101.9, Nutrition labeling of food. law.cornell.edu
  18. U.S. Food and Drug Administration. How to Understand and Use the Nutrition Facts Label. Content current as of March 5, 2024. fda.gov
  19. U.S. Department of Agriculture and U.S. Department of Health and Human Services. Dietary Guidelines for Americans, 2025–2030. cdn.realfood.gov

Estimates, not medical advice. If you're pregnant, have a medical condition or have a history of disordered eating, talk to a clinician before changing how you eat.

Written by the SeeMeEat editorial team under a pen name.

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