How to measure dark corn syrup
The USDA entry is “Syrups, corn, dark, 1 cup = 328 g”, so the number is for the dark variety; light corn syrup from USDA is 341 grams. King Arthur Baking’s chart lists corn syrup at 312 grams per cup without naming a type. Syrup that stays in the measuring cup is not in the bowl, and a tablespoon left behind is about 20 grams here. Weighing straight into the bowl avoids that. A quarter cup is 82 grams, half a cup 164 grams and a tablespoon about 20.5 grams. Honey is 339 grams and molasses 337 grams per cup for comparison.
Sources: 328 grams per US cup is the cup weight in USDA FoodData Central (open FDC entry 168836), entry “Syrups, corn, dark, 1 cup = 328 g”. Cup and ounce sizes: NIST SP 811.
Dark corn syrup: cups to grams chart
| Cups | Grams | Ounces |
|---|---|---|
| 1/8 cup | 41 g | 1.45 oz |
| 1/4 cup | 82 g | 2.89 oz |
| 1/3 cup | 109 g | 3.86 oz |
| 1/2 cup | 164 g | 5.78 oz |
| 2/3 cup | 219 g | 7.71 oz |
| 3/4 cup | 246 g | 8.68 oz |
| 1 cup | 328 g | 11.6 oz |
| 1 1/4 cups | 410 g | 14.5 oz |
| 1 1/2 cups | 492 g | 17.4 oz |
| 1 3/4 cups | 574 g | 20.2 oz |
| 2 cups | 656 g | 23.1 oz |
| 2 1/2 cups | 820 g | 28.9 oz |
| 3 cups | 984 g | 34.7 oz |
| 4 cups | 1,312 g | 46.3 oz |
Tablespoons and teaspoons of dark corn syrup
One tablespoon of dark corn syrup weighs 21 g, one teaspoon 6.8 g: the 328 g cup divided by 16 and by 48.
| Spoons | Grams |
|---|---|
| 1/4 tsp | 1.7 g |
| 1/2 tsp | 3.4 g |
| 1 tsp | 6.8 g |
| 1 tbsp | 21 g |
| 2 tbsp | 41 g |
| 3 tbsp | 62 g |
| 4 tbsp | 82 g |
More USDA measures for dark corn syrup
USDA FoodData Central entry 168836 (“Syrups, corn, dark”) also weighs dark corn syrup by the spoon.
USDA weighs a tablespoon of dark corn syrup at 20 g. A sixteenth of the 328 g cup is 20.5 g, so the spoon table above, which is worked out from the cup, reads 0.5 g higher per tablespoon than USDA’s own spoon figure.
Grams of dark corn syrup to cups
Going the other way, divide the grams by 328. Dark corn syrup measures out at about 1.39 grams per milliliter, heavier than water by 91 g a cup.
| Grams | Cups | In the kitchen |
|---|---|---|
| 25 g | 0.08 cup | about 1.2 tbsp |
| 50 g | 0.15 cup | about 2.4 tbsp |
| 100 g | 0.3 cup | just under 1/3 cup |
| 150 g | 0.46 cup | just under 1/2 cup |
| 200 g | 0.61 cup | just under 5/8 cup |
| 250 g | 0.76 cup | just over 3/4 cup |
| 300 g | 0.91 cup | just over 7/8 cup |
| 400 g | 1.22 cups | just under 1 1/4 cups |
| 500 g | 1.52 cups | just over 1 1/2 cups |
| 1,000 g | 3.05 cups | just over 3 cups |
Ounces and pounds of dark corn syrup to cups
On a scale set to ounces, a cup of dark corn syrup reads 11.57 oz, so one pound fills 1.38 cups.
| Weight (not fluid oz) | Grams | Cups | In the kitchen |
|---|---|---|---|
| 4 oz | 113 g | 0.35 cups | just over 1/3 cup |
| 8 oz | 227 g | 0.69 cups | just over 2/3 cup |
| 12 oz | 340 g | 1.04 cups | just over 1 cup |
| 1 lb | 454 g | 1.38 cups | about 1 3/8 cups |
| 2 lb | 907 g | 2.77 cups | just over 2 3/4 cups |
| 5 lb | 2,268 g | 6.91 cups | just over 6 7/8 cups |
Other sugars closest in weight
Swapping light corn syrup for dark corn syrup? Go by weight. A cup of light corn syrup weighs 341 g; the same weight of dark corn syrup is 1.04 cups, just over 1 cup. Measured cup for cup, dark corn syrup gives 13 g less, 3.8 percent.
Dark corn syrup ranks 4th heaviest per cup among 15 sugars and syrups here. Against all 193 ingredients: 5 heavier, 187 lighter.
- Light corn syrup: 341 grams per cup, 13 g more
- Molasses: 337 grams per cup, 9 g more
- Agave syrup: 336 grams per cup, 8 g more
- Coarse sparkling sugar: 228 grams per cup, 100 g less
- Demerara sugar: 220 grams per cup, 108 g less
- Brown sugar (packed): 213 grams per cup, 115 g less
For every ingredient in one place, open the cups to grams converter. The recipe scaler halves or doubles a recipe, sugar included, and the oven temperature converter translates Celsius and gas marks for bakes from abroad.
Frequently asked questions
How many grams is 1/2 cup of dark corn syrup?
About 164 grams. A full cup is about 328 grams and 1/4 cup about 82 grams.
How many cups is 100 grams of dark corn syrup?
At 328 g per cup, 100 g of dark corn syrup is 0.30 cups, just under 1/3 cup.
How many grams is a tablespoon of dark corn syrup?
About 20.5 grams. A cup is 328 grams and holds 16 tablespoons. Two tablespoons are 41 grams.
Do light and dark corn syrup weigh the same?
Not quite. USDA FoodData Central gives 341 grams per cup for light corn syrup and 328 grams for dark, a 13 gram difference, or about 4 percent.
How many cups of dark corn syrup are in a pound?
1.38 cups, about 1 3/8 cups. A pound is 453.6 g and each cup of dark corn syrup weighs 328 g. Five pounds, 2,268 g, is about 6.9 cups.
Does a cup of dark corn syrup weigh 8 ounces?
Not by weight. Dark corn syrup comes to 11.6 ounces per cup (328 g), more than the 8 fluid ounces of volume the cup holds. A full 8 ounces of dark corn syrup on the scale takes 0.69 cups.