How many grams in a cup of maple syrup?

1 cup of maple syrup weighs 315 g by USDA's figure. King Arthur Baking lists 156 g per half cup, which is 312 g per cup.

Sources: USDA FoodData Central, King Arthur Baking ingredient weight chart · Checked October 10, 2026

Amount

Unit

315 g 11.1 oz

Sources range from 312 g to 315 g for 1 cup.

Converting a whole recipe?

Sous Chef converts every ingredient in a recipe to grams and millilitres in one tap, rounded to amounts you would actually weigh.

Maple syrup cups to grams table

Using 315 g per US cup. A US cup is 236.6 mL; 1 cup is 16 tablespoons.

Maple syrup cups to grams
US cups	Grams	Ounces	Tablespoons
⅛ cup	39 g	1.4 oz	2
¼ cup	79 g	2.8 oz	4
⅓ cup	105 g	3.7 oz	5.3
½ cup	158 g	5.6 oz	8
⅔ cup	210 g	7.4 oz	10.7
¾ cup	236 g	8.3 oz	12
1 cup	315 g	11.1 oz	16
1½ cups	473 g	16.7 oz	24
2 cups	630 g	22.2 oz	32
3 cups	945 g	33.3 oz	48
4 cups	1,260 g	44.4 oz	64

Why sources disagree

Maple syrup is a dense sugar syrup, so a cup weighs about a third more than a cup of water. The two sources agree within 3 g.

Source	Listed as	Grams per cup
USDA FoodData Central Syrups, maple	1 cup = 315 g	315 g
King Arthur Baking ingredient weight chart Maple syrup	½ cup = 156 g	312 g

Bold row is the figure the calculator uses. Figures listed for a smaller measure are multiplied up to one cup.

How to measure maple syrup accurately

Weigh syrup straight into the bowl so none stays behind in the cup.
Weigh on a digital scale when you can, since it skips the mess of measuring cups.
Use a clear liquid measuring cup on a flat counter and read it at eye level.

Convert the whole recipe, not one line

Converting a recipe one ingredient at a time is where mistakes slip in. Sous Chef imports a recipe from a link or pasted text, then converts every ingredient at once: dry ingredients and butter to grams, liquids to millilitres. Tap again to go back to cups.

US recipe

2¼ cups all-purpose flour
1 cup butter, softened
¾ cup brown sugar, packed
1½ cups milk

In Sous Chef, after "Convert to metric"

275 g all-purpose flour
225 g butter, softened
170 g brown sugar, packed
350 ml milk

Example output. Sous Chef rounds to amounts you would actually weigh, so its numbers can differ by a few grams from the table above.

Common questions

How many grams is half a cup of maple syrup?

Half a cup of maple syrup is about 158 g, using 315 g per cup.

How many grams is 1 tablespoon of maple syrup?

1 tablespoon of maple syrup is about 20 g, since 1 cup is 16 tablespoons and 315 g per cup divided by 16 is 20 g.

More conversions

Cook in grams without doing the math.

Import any recipe and Sous Chef converts it, scales it, or swaps an ingredient for you. Free to download on iPhone.