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Sugar Grams to Teaspoons Converter

How many grams is a teaspoon of sugar? A level teaspoon of granulated white sugar weighs about 4.2 g, while nutrition labels round it to 4 g. Convert either way, pick your sugar type, and see how the result compares with the American Heart Association daily added-sugar limits.

A 12 oz can of cola lists about 39 g.

Density differs: brown packs heavier, powdered is aerated.

Nutrition labels round a teaspoon of sugar to 4 g. Left off, this uses the true 4.2 g density of granulated sugar.

Result

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How many grams is a teaspoon of sugar?

How many grams is a teaspoon of sugar? A level teaspoon of granulated white sugar weighs about 4.2 grams on a kitchen scale. To read a label the other way round, divide the grams by 4.2: a 12 oz can of cola listing 39 g of sugar is about 9.3 level teaspoons.

Nutrition labels and public-health guidance use a rounded 4 grams per teaspoon instead. That convention is where the familiar figures come from — the American Heart Association's 36 g limit is quoted as 9 teaspoons, and its 25 g limit as 6. Neither number is simply wrong: 4.2 g is the measured density of granulated sugar, and 4 g is the rounding used to talk about labels. They differ by roughly 5%, so this converter defaults to 4.2 g and offers the 4 g convention as a toggle.

Sugar type changes the answer more than the rounding does. A teaspoon of packed brown sugar is 4.6 g because it is damp and pressed down, powdered sugar is only 2.5 g because it is milled fine and full of air, and the syrups are heavier still — 7.0 g for honey and 6.7 g for maple syrup.

teaspoons = grams ÷ grams per teaspoon (granulated 4.2 g · label convention 4 g · brown 4.6 g · powdered 2.5 g · honey 7.0 g · maple 6.7 g)

This is a unit conversion, not nutrition advice. The American Heart Association daily limits it compares against — 36 g (9 teaspoons) for men and 25 g (6 teaspoons) for women — apply to added sugar, not to the sugar naturally present in whole fruit and plain milk.

Grams and teaspoons of sugar FAQ

How many grams is a teaspoon of sugar?

About 4.2 grams for one level teaspoon of granulated white sugar. Nutrition labels and dietary guidance round that to 4 grams, so both figures are in common use and this converter offers each of them.

Why do labels say 4 g when a teaspoon of sugar weighs 4.2 g?

A label declares sugars by weight in grams; the teaspoon figure is a translation added afterwards to make that weight easier to picture. Public-health messaging rounds it to a flat 4 g so the arithmetic stays simple, while a kitchen scale measures the real density of about 4.2 g. The gap is roughly 5%, which is why a label and a scale can disagree without either being wrong.

Does brown sugar weigh the same as white sugar?

No. A packed teaspoon of brown sugar is about 4.6 g because it is damp and pressed into the spoon, and powdered or confectioners' sugar is only about 2.5 g because it is milled fine and holds a lot of air. Honey is about 7.0 g per teaspoon and maple syrup about 6.7 g.

How many teaspoons of sugar are in a can of soda?

A 12 oz can listing 39 g of sugar works out to about 9.3 level teaspoons at 4.2 g each, or 9.75 teaspoons using the 4 g label convention. That single can is past the American Heart Association daily limits of 36 g for men and 25 g for women.

How much added sugar is the daily limit?

The American Heart Association suggests no more than 36 g a day (9 teaspoons) for men and 25 g a day (6 teaspoons) for women. Those limits cover added sugar only — the sugar that occurs naturally in whole fruit and plain milk is not counted against them.