How to measure jam or preserves
How full the cup is and how firmly it is packed changes what it holds, so the same cup can weigh a little more or less in your kitchen. A scale gives the same result every time; the chart below converts any amount.
Source: 340 grams per US cup is the weight per cup in King Arthur Baking’s ingredient weight chart, entry “Jam or preserves, 1/4 cup = 3 oz = 85 g”, multiplied by 4 for one cup. A US cup is about 237 milliliters.
Jam or preserves: cups to grams chart
| Cups | Grams | Ounces |
|---|---|---|
| 1/8 cup | 43 g | 1.5 oz |
| 1/4 cup | 85 g | 3 oz |
| 1/3 cup | 113 g | 4 oz |
| 1/2 cup | 170 g | 6 oz |
| 2/3 cup | 227 g | 8 oz |
| 3/4 cup | 255 g | 8.99 oz |
| 1 cup | 340 g | 12 oz |
| 1 1/2 cups | 510 g | 18 oz |
| 2 cups | 680 g | 24 oz |
| 3 cups | 1,020 g | 36 oz |
| 4 cups | 1,360 g | 48 oz |
Tablespoons and teaspoons of jam or preserves
Three teaspoons make a tablespoon and 16 tablespoons make a cup, so the spoon weights follow straight from the 340 grams per cup. Use level spoons, not heaped ones.
| Spoons | Grams |
|---|---|
| 1/4 tsp | 1.8 g |
| 1/2 tsp | 3.5 g |
| 1 tsp | 7.1 g |
| 1 tbsp | 21 g |
| 2 tbsp | 43 g |
| 3 tbsp | 64 g |
| 4 tbsp | 85 g |
Grams of jam or preserves to cups
Going the other way, divide the grams by 340. A cup of jam or preserves weighs 103 grams more than a cup of water, which is 237 grams.
| Grams | Cups | In the kitchen |
|---|---|---|
| 25 g | 0.07 cup | about 1.2 tbsp |
| 50 g | 0.15 cup | about 2.4 tbsp |
| 100 g | 0.29 cup | just under 1/3 cup |
| 150 g | 0.44 cup | just under 1/2 cup |
| 200 g | 0.59 cup | just under 5/8 cup |
| 250 g | 0.74 cup | just under 3/4 cup |
| 300 g | 0.88 cup | about 7/8 cup |
| 400 g | 1.18 cups | just over 1 1/8 cups |
| 500 g | 1.47 cups | just under 1 1/2 cups |
| 1,000 g | 2.94 cups | just under 3 cups |
Other pantry staples per cup
- Cocoa powder: 84 grams per cup
- Rolled oats: 89 grams per cup
- White rice (uncooked): 185 grams per cup
- Chocolate chips: 170 grams per cup
- Peanut butter: 258 grams per cup
- Cornstarch: 112 grams per cup
- Table salt: 292 grams per cup
- Chopped walnuts: 113 grams per cup
- Dry bread crumbs: 112 grams per cup
- Panko: 50 grams per cup
- Graham cracker crumbs: 100 grams per cup
- Mayonnaise: 220 grams per cup
- Ketchup: 240 grams per cup
- Chocolate hazelnut spread: 298 grams per cup
- Tahini: 256 grams per cup
- Almond butter: 272 grams per cup
- Tomato paste: 262 grams per cup
- Canned tomatoes (in juice): 240 grams per cup
- Pumpkin purée: 245 grams per cup
- White chocolate chips: 170 grams per cup
- Mini marshmallows: 43 grams per cup
- Kosher salt (light, flaky): 128 grams per cup
- Kosher salt (dense, granular): 256 grams per cup
For every ingredient in one place, open the cups to grams converter. The grams to ounces converter helps if your scale shows ounces, and the recipe scaler resizes the rest of the recipe.
Frequently asked questions
How many grams is 1/2 cup of jam or preserves?
About 170 grams. A full cup is about 340 grams and 1/4 cup about 85 grams.
How many cups is 100 grams of jam or preserves?
About 0.29 cups, just under 1/3 cup. Divide the grams by 340 to get cups.
How many grams are in a tablespoon of jam or preserves?
About 21 grams in a tablespoon and 7.1 grams in a teaspoon, measured level.
Where does 340 grams per cup of jam or preserves come from?
From King Arthur Baking’s ingredient weight chart, which gives 1/4 cup = 3 oz = 85 g. That figure is multiplied up to one full cup.