Maple Syrup: Cups to Grams
A cup of maple syrup weighs 312 g — heavy like all syrups, but with a pour so thin it tries to escape the cup before the scale settles.
Maple syrup conversion table
| Cups | Grams | Ounces |
|---|
One weight for every grade
Maple syrup is sold by grade — golden and delicate through to very dark and strong — and the grades absolutely taste different, the later-season syrups darker and more mineral. What they don't do, on the King Arthur chart, is weigh differently: the chart lists a single figure, 156 g per half cup, and the 312 g cup on this page is that figure doubled. All commercial maple syrup is concentrated to a similar density before bottling, which is why one honest number can cover the shelf. If you are reducing your own sap or working with a home-tapped syrup that was boiled by eye, all bets are off — thin syrup weighs less — but for bottled syrup, 312 g is the cup.
| Syrup | Grams per US cup |
|---|---|
| Maple syrup | 312 g |
| Corn syrup | 312 g |
| Honey | 336 g |
| Molasses | 340 g |
The table matters because these four swap for each other in recipes constantly, and the swap is not weight-neutral: trading a cup of honey for a cup of maple syrup quietly removes 24 g of sweetener and adds a thinner, more watery syrup. Convert each by its own row of the converter.
Measuring a syrup that won't sit still
Maple syrup pours like water but clings like honey — the awkward combination. In a cup, it levels itself beautifully (no meniscus drama beyond reading at eye level), but a film stays on every surface, and because the syrup is expensive, the film feels personal. Weigh it instead: bowl on the scale, pour slowly near the target weight, and stop early — maple syrup keeps flowing off the jug's lip for a second after you stop tipping, and overshooting 312 g down to a recipe's 80 g is its own small heartbreak.
If sugar crystals have formed in the bottle — a harmless crust that appears in stored syrup — stand the bottle in warm water until they dissolve before measuring. Scooping around crystals gives you a cup of syrup plus an unknown weight of loose sugar, which no chart can convert.
Frequently asked questions
How many grams is 1 cup of maple syrup?
312 grams per US cup, from the King Arthur chart's listed 156 g per 1/2 cup doubled. One figure covers all commercial grades.
How many grams is a tablespoon of maple syrup?
About 20 g, calculated from the cup figure (312 g ÷ 16 tablespoons = 19.5 g). The chart lists maple syrup by the half cup, so the tablespoon is shown here as arithmetic, not a separate published value.
Can I swap maple syrup for honey in a recipe?
By flavour, often; by weight, carefully. A cup of honey is 336 g against maple syrup's 312 g, and honey is thicker and less watery. Convert each ingredient with its own figure and expect a slightly looser batter with maple.
Do dark and light maple syrup weigh the same?
On the King Arthur chart, yes — one weight covers maple syrup generally, because bottled syrups are concentrated to a similar density regardless of grade. The grades differ in flavour, not in the conversion.
Related pages
- Honey: cups to grams — 336 g per cup and 21 g per tablespoon — the closest cousin
- Sugar: cups to grams — what syrup brings that dry sugar doesn't: weight plus water
- Butter: cups to grams — the other half of every maple-butter sauce
Data sources: King Arthur Baking Ingredient Weight Chart and USDA FoodData Central. Weights are per US customary cup (236.588 mL); other cup sizes are scaled by volume ratio. See the data sources & method page for how values were chosen.