How Many Grams in a Tablespoon? The Baking Conversion Guide

Key takeaways

• A tablespoon measures volume, not weight. A spoon of flour and a spoon of honey look identical and weigh almost three times apart.
• One level US tablespoon of all-purpose flour is 7.5 g; granulated sugar is 12.5 g; butter is 14.2 g; honey is 21.3 g.
• Level spoons only. A heaped tablespoon can hold 30–50% more, and that is where cakes go wrong.
• Australian tablespoons are bigger (20 ml vs the US 14.79 ml) — an Australian recipe’s tablespoon is a third larger than an American one.
• For anything structural — bread, cakes, pastry — weigh it. For a pinch of salt or a teaspoon of vanilla, the spoon is fine.

Why does a tablespoon weigh differently for every ingredient?

Because a tablespoon is a container, and containers don’t care what you put in them. Flour is mostly air. Honey is mostly sugar and water packed tight. Pour both into the same spoon and you get the same volume — and wildly different weights.

Here’s the number that made me switch to weighing everything: one cup of all-purpose flour is 120 grams, while one cup of honey is 340 grams. Same cup, nearly three times the weight. A tablespoon inherits that gap. Flour comes out at 7.5 g per spoon. Honey comes out at 21.3 g. If a recipe says “3 tablespoons” and you treat all tablespoons as equal, you’re already off by a lot.

And honestly, most of us learned this the hard way. The third time I baked the same banana bread and got three different loaves, I finally stopped blaming the oven. It was the measuring. Scoop flour straight from the bag and the cup compresses it — you can pack 150 g into a “120 g” cup without noticing. Spoon it in lightly and level it off, and you’re back near 120. Same recipe, same kitchen, different cake.

How many grams in a tablespoon? The full table

These are the exact densities our tbsp to grams converter uses, measured as level US tablespoons (14.79 ml). Keep this table on your phone and you’ll never guess again.

Two rows surprise almost everyone. Table salt at 18 g per spoon is the heaviest common dry ingredient — a “tablespoon of salt” in a soup recipe is a very different thing from a tablespoon of flour. And rolled oats at 5.6 g are the lightest, because flakes trap so much air. If you ever wondered why your oat cookies spread differently each time, now you know.

How do you convert tablespoons to grams without a chart?

You need one number: the ingredient’s weight per cup. Then the maths is simple.

Grams per tablespoon = grams per cup ÷ 16. A cup holds 16 tablespoons, so one spoon is one-sixteenth of a cup. Flour: 120 ÷ 16 = 7.5 g. Sugar: 200 ÷ 16 = 12.5 g. Honey: 340 ÷ 16 = 21.3 g. It works in reverse too — grams ÷ grams-per-tablespoon gives you the spoon count. Got 100 g of honey and a recipe in spoons? 100 ÷ 21.3 = 4.7 tablespoons.

For the full version with teaspoons, ounces and cups, plus the reverse direction, our converter does it instantly. And if your recipe is written in cups rather than spoons, the cups to grams converter covers that side of it — same 22 ingredients, same densities.

What about butter, oil and honey — the tricky three?

Butter is the one people measure worst. A tablespoon of butter is 14.2 g, and one stick (8 tablespoons, half a cup) is 113 g. But that only holds for butter at fridge temperature, cut cleanly. Melted butter measured in a spoon settles differently, and soft butter scooped from a tub packs tighter. When a recipe says “2 tablespoons butter, melted”, weigh 28 g and skip the spoon entirely.

Oil is simpler: 13.6 g per spoon, and it doesn’t care about temperature. Honey is the opposite problem — it’s so thick that a spoonful leaves half of itself behind on the spoon. Weigh it straight into the bowl instead. 21.3 g per spoon, zero waste, no sticky spoon to wash. Professional bakers figured this out years ago; home bakers are only now catching up.

Are US, UK and Australian tablespoons the same?

No, and this one genuinely catches people out. A US tablespoon is 14.79 ml. A UK tablespoon is 15 ml — close enough that it rarely matters. But an Australian tablespoon is 20 ml, which is four teaspoons instead of three. That’s a third larger than the American spoon.

So if you’re baking from an Australian blog with American spoons, every tablespoon in the recipe is under-measured by 25%. For a cake with 8 tablespoons of sugar, that’s 2 whole spoons missing. Check where the recipe comes from before you trust the spoon count. Or better: convert everything to grams first, because grams don’t have nationalities.

Common mistakes that ruin the conversion

Heaped instead of level. “One tablespoon” always means level unless the recipe says heaped. A heaped spoon of flour can hold 11 g instead of 7.5 — that’s nearly 50% extra, and across 10 spoonfuls it wrecks a cake’s structure.

Scooping flour from the bag. The cup or spoon compresses the flour as you push it in. Spoon the flour into the measure and level it with a knife. The difference between scooped and spooned flour is the single biggest measurement error in home baking, and it’s the same mistake behind the cake failures I wrote about in why your cake failed.

Swapping ingredients spoon for spoon. A recipe that calls for 3 tablespoons of cocoa (15.9 g) will not survive 3 tablespoons of honey (63.9 g) in its place. Volume is not interchangeable between ingredients. Weight is.

Trusting a chart that disagrees with your recipe. Charts vary a little — one lists flour at 120 g per cup, another at 125 g. Neither is wrong; they measured differently. Pick one reference and stay consistent within a recipe, and your results stay repeatable. For a deeper look at why weighing beats scooping, this grams-per-cup breakdown and this guide to baking by weight both lay out the evidence well.

When should you just use a scale?

Short answer: whenever the recipe’s structure depends on ratios. Bread, cakes, cookies, pastry — flour, sugar and fat set the crumb, the rise and the moisture, so small errors show up fast. A scale with a tare button lets you add everything to one bowl and zero between ingredients. It’s faster than spoons once you try it, and there’s less washing up.

Spoons still earn their place. Salt, baking powder, spices, vanilla — anything under about 5 g is hard for a cheap home scale to read accurately, since most read in whole grams. A teaspoon of baking powder is 4 g; a scale rounding to the nearest gram gives you a 12% error either way. Keep the spoons for the small stuff, weigh the big stuff, and convert the rest with the table above or the converter.

Frequently asked questions

How many grams are in a tablespoon of flour?

One level US tablespoon of all-purpose flour weighs 7.5 grams. Bread flour is 7.9 g, cake flour 7.1 g and whole wheat flour 7.1 g per level tablespoon.

How many grams in a tablespoon of sugar?

One level tablespoon of granulated sugar is 12.5 grams. Packed brown sugar is heavier at 13.8 g, and powdered sugar is lighter at 7.5 g per tablespoon.

How many grams in a tablespoon of butter?

One tablespoon of butter is 14.2 grams. A full stick (8 tablespoons) is 113 grams, and a cup of butter is 227 grams.

Is a tablespoon 15 grams?

Only for water-like liquids. A tablespoon of water or milk is 15.0 g, but flour is 7.5 g and honey is 21.3 g. “A tablespoon is 15 grams” is only true when the ingredient’s density is close to water’s.

How do I convert tablespoons to grams without a chart?

Divide the ingredient’s grams per cup by 16. For example, flour is 120 g per cup, so one tablespoon is 120 ÷ 16 = 7.5 g. Or use our free tbsp to grams converter for instant results in both directions.

Are US and Australian tablespoons the same?

No. A US tablespoon is 14.79 ml (3 teaspoons) while an Australian tablespoon is 20 ml (4 teaspoons). An Australian recipe measured with US spoons will be under-measured by about 25% per spoon.

Next time a recipe says “tablespoons”, don’t reach for the spoon drawer first. Check the ingredient, check the table, and if the bake matters, weigh it. Your cakes will notice the difference before you do.