1 Tablespoon of Oil in Milliliters

One tablespoon of oil is 14.79 milliliters

A tablespoon measures volume, so the milliliter answer is the same for every oil. Appendix C of NIST Handbook 44 (2024 edition) defines the US gallon as 231 cubic inches, exactly 3.785411784 L. A gallon holds 256 tablespoons, and 3785.411784 / 256 = 14.7868 mL. That is half a fluid ounce, since a fluid ounce is 29.5735 mL, and it is three level teaspoons.

Two spoon standards sit beside each other. NIST rounds the cooking spoon equivalents to the nearest milliliter and lists a measuring tablespoon as 15 mL, 3 teaspoons, 4 fluid drams and half a fluid ounce exactly. The FDA uses 15 mL for nutrition labels under 21 CFR 101.9(b)(5)(viii). A spoon from a measuring set is built to 14.7868 mL. The label spoon is 0.21 mL larger, a gap of 1.4 percent.

Fluid ounces catch people out. One tablespoon is 0.5 fl oz of volume, not half an ounce of weight. The same spoon of olive oil weighs 0.48 oz on a scale, because oil is lighter than water.

British recipes add a third spoon to the argument. A dessertspoon is 10 mL, and a British tablespoon is 15 mL, both metric for decades. A dessertspoon of olive oil holds 9.1 g and 81 kcal, two thirds of a US spoon, so a translated cookbook asking for two dessertspoons wants less oil than an American reader might pour from habit.

The weight moves with the oil, from 13.5 to 14 grams

Weight is where the oils part company. USDA FoodData Central record 171413, the SR Legacy entry for olive oil published April 1, 2019, gives a household tablespoon of 13.5 g and a teaspoon of 4.5 g. Three teaspoons therefore weigh 13.5 g, which matches the spoon. Canola oil lists 14 g, vegetable oil from soybean 13.6 g, and coconut oil 13.6 g.

The gram column is not a density measurement. Each row is a household measure that USDA rounded, and the implied grams per mL start at 0.913 for olive oil. Density tables put liquid canola in the low 0.92s, so 14.79 mL of it weighs nearer 13.5 g than 14. The 14 g row is a safe label figure and a gram high for a scale.

Spoon size moves the number too. A 15 mL metric spoon holds 13.7 g of olive oil, and a 20 mL Australian spoon holds 18.3 g, which is 4.8 g more than a US spoon and 42 kcal more.

119 calories and 13.5 grams of fat per spoon

Olive oil carries 884 kcal per 100 g in record 171413, so a 13.5 g spoon holds 13.5 x 8.84 = 119.34, or 119 calories. In kilojoules the same spoon reads 499 kJ, since USDA lists 3,699 kJ per 100 g. All 13.5 g is fat: 13.5 / 78 = 17.3 percent of the 78 g Daily Value for total fat, and 119 / 2000 = 6 percent of a 2,000 calorie day.

A label prints different numbers for the same spoon. Calories above 50 round to the nearest 10, and fat above 5 g rounds to the nearest gram (21 CFR 101.9(c)(1) and (c)(2)). So 119.34 becomes 120 calories and 13.5 g becomes 14 g of fat. Neither figure is wrong. One is arithmetic and the other is a labeling rule.

Saturated fat is the number to watch. Olive oil holds 13.808 g of saturated fat per 100 g, which is 1.86 g in a tablespoon. The American Heart Association suggests staying under 6 percent of calories from saturated fat, about 13 g on a 2,000 calorie day. One spoon of olive oil uses 14 percent of that. One spoon of coconut oil, at 11.2 g, uses 86 percent.

Three spoons a day, one at each meal, add 40.5 g of fat and 357 kcal. That is 52 percent of the Daily Value before any cheese, meat or nuts enter the day.

The spoon in the drawer is not a measuring spoon

Cutlery is not calibrated. A 2025 study in PLOS Global Public Health measured the tablespoons in 15 households and found volumes from 4.25 to 15.04 mL, with a mean of 9.00 mL and a standard deviation of 3.39 mL. More than nine in ten held less than the 15 mL a measuring spoon should.

Run that through olive oil. A 9 mL dinner spoon holds 9 x 0.913 = 8.2 g, worth 73 kcal. A recipe that calls for 3 tbsp wants 44.36 mL. Three of those dinner spoons deliver 27 mL, so the pan is 17.4 mL short, about 15.9 g of oil and 140 kcal missing from the dish. You would need five spoons to land near the recipe.

A measuring spoon fixes the volume, not the technique. Fill it to the rim and level it with the back of a knife. A spoon with a dome above the rim holds more, and oil is easy to overfill because it sits above the edge before it spills.

One spoon in a dressing, an egg or a marinade

One tablespoon is a full salad dressing for two. Whisk it with a teaspoon of vinegar, a pinch of salt and a teaspoon of mustard and you have a vinaigrette at the classic three to one ratio. The bowl holds 119 kcal, so each salad carries about 60.

A fried egg is the other everyday use. An 8 inch pan takes a tablespoon of oil and still shows a thin film, not a pool. Some of that oil stays in the pan and on the spatula. If half of it stays behind, the egg picks up about 60 kcal from the oil, and the rest goes down the sink with the washing up.

Roasting follows the same arithmetic. One tablespoon tossed through four cups of chopped vegetables for two plates adds 119 kcal, or 60 kcal a plate. Double the tray and you double the spoon, which is why a holiday tray of vegetables can carry more fat than the meat beside it.

A marinade is the third everyday pour. One tablespoon of olive oil whisked with two tablespoons of lemon juice, a crushed garlic clove, a teaspoon of salt and a pinch of oregano coats a pound of chicken thighs. Most of the oil drips off on the grill, and the acid does the work of tenderizing. The spoon still counts as 119 kcal in the bowl, which is why a marinade is cheaper in calories than a finishing drizzle.

Grease fires trace back to the same film. Water thrown on a burning pan makes the flare worse, so slide a lid across the pan, turn the heat off and leave it covered until it cools. A dry towel or a box of baking soda smothers the flames. A spoon of oil ignites at a high temperature, but a film that runs over the rim of a hot pan can catch in seconds.

Spray oil and cast iron: 54 sprays per tablespoon

Spray cans sell a different unit. Labels on common cooking sprays define a serving as a quarter second spray, about 0.25 g, and print 0 calories because a serving under 5 calories may be shown as zero (21 CFR 101.9(c)(1)). The oil has not gone anywhere: 0.25 x 8.84 = 2.2 kcal per spray.

Matching a tablespoon takes 13.5 / 0.25 = 54 sprays. A one second spray lays down roughly 1 g, about 9 kcal, so a five second coat is 45 kcal, still less than half a poured spoon. A 5 oz can listing about 470 quarter second servings holds 117.5 g of oil, which is about 1,039 kcal in total. The zero on the label is a per serving figure, not a property of the can.

Spray earns its place on a muffin tin or a waffle iron, where the goal is a film and no pooling. It does not replace a poured spoon in a pan sauce, a marinade or a cake, where the oil is part of the recipe and the lecithin in the can changes how the batter sets.

A popcorn pot shows the other side of the spray argument. One tablespoon of oil heated with three kernels in a three quart saucepan, then a third of a cup of kernels added once the test kernels pop, yields about eight cups of popcorn. The 119 kcal spreads across eight cups at roughly 15 kcal each, and no spray can coats a pot that evenly.

Cast iron takes the film idea further. Wipe a warm skillet with a thin layer of oil on a cloth and it bakes into a hard, dark seasoning, one coat at a time. A quarter cup of oil seasons several pans, because the layer that matters is a few drops thick, and half a spoon goes further than a pool.

A pastry brush stretches the same spoon further. Dip the bristles, paint the griddle, and one tablespoon covers a batch of pancakes or a tray of rolls, corners included. The brush leaves a film rather than a puddle, so nothing pools around the food.

How one tablespoon fits a day of fat

The Daily Value for total fat is 78 g on a 2,000 calorie diet, and for saturated fat it is 20 g (21 CFR 101.9(c)(9)). A single tablespoon of olive oil covers 17 percent of the first and 9 percent of the second.

The AHA figure is tighter for saturated fat: under 6 percent of calories, which is 120 kcal or about 13 g at 2,000 calories a day. One spoon of olive oil takes 1.86 g, or 14 percent. A spoon of coconut oil takes 11.2 g, or 86 percent, and two of them go past the cap.

Total fat has a softer ceiling. At 30 percent of 2,000 calories, fat comes to 600 kcal and 67 g, so one tablespoon is 20 percent of that budget. Three spoons across three meals is 40.5 g, more than half. The spoons are rarely the whole story, but they are the part you can count without reading a label.

Measuring a tablespoon, and where used oil goes

Three tools measure a tablespoon: a nested measuring spoon set, a 15 mL medicine cup, and a kitchen scale. The spoon is fastest for one, the scale is best for a batch. Set a bowl on the scale, tare it, and pour to 13.5 g for olive oil or 14 g for canola.

Read oil at eye level. The meniscus curves up at the edges of a spoon and down in a narrow cup, and a spoon read from above looks fuller than it is. A 15 mL line on a jug is a label tablespoon, 1.4 percent larger than the customary spoon, a difference no recipe will notice.

For repeat cooking, weigh the bottle. Put the bottle on the scale, note the grams, pour, and note them again. The drop is the oil that left the bottle, including what stayed in the pan. That trick works when you want a number for a food log rather than for a recipe.

Used oil needs a jar, not a drain. A spoon poured down the sink coats the pipe, and a year of one spoon a day adds up to 5.4 L of grease in the plumbing, since 365 x 14.79 mL = 5,398 mL. Pour cooled oil into a screw top jar, wipe the pan with a paper towel, and put the jar in the trash once it fills. A plumber charges more for one clog than a bottle of oil costs.

Keep a small bottle on the counter and refill it from the big tin with a funnel. A narrow neck pours slower than a wide one, which cuts the splash that lands on the stove, the backsplash and your sleeve. Rinse the funnel in hot water, let it dry, and the next refill stays clean.