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How many grams in a cup of gelatin?
About 150 g in a US cup (240 ml), 158 g in a metric cup (250 ml) and 127 g in a 200 ml cup.
From
Cup size
Gelatin powder
1 cup = 150 g
- Tablespoons16
- Teaspoons48
- Millilitres237
- Grams150
Dry ingredients are spooned into the cup and levelled. Scooped straight from the bag, flour can weigh up to 20% more — for baking, a scale is the safest bet.
Good to know:
- In the US powdered gelatin comes in ¼ oz (7 g) envelopes of about 2¼ teaspoons each, and one envelope sets 2 cups of liquid.
- Bloom it before use: sprinkle it over cold water (about ¼ cup per envelope), wait a few minutes until spongy, then stir it into warm liquid until clear. Boiling weakens the set.
- Fresh pineapple, kiwi and papaya stop gelatin from setting. Canned or cooked fruit is fine: the heat has already destroyed the enzyme.
Conversion tables (US cup · 240 ml):
Cups to grams
| Cups | Grams |
|---|---|
| ⅛ | 19 g |
| ¼ | 38 g |
| ⅓ | 50 g |
| ½ | 75 g |
| ⅔ | 100 g |
| ¾ | 113 g |
| 1 | 150 g |
| 1½ | 225 g |
| 2 | 300 g |
| 3 | 450 g |
Grams to cups
| Grams | Cups |
|---|---|
| 25 g | 0.2 |
| 50 g | ⅓ |
| 100 g | ⅔ |
| 150 g | 1 |
| 200 g | 1⅓ |
| 250 g | 1⅔ |
| 300 g | 2 |
| 500 g | 3⅓ |
Spoons to grams
| Spoons | Grams |
|---|---|
| ½ tsp | 1.6 g |
| 1 tsp | 3.1 g |
| 2 tsp | 6.2 g |
| ½ tbsp | 4.7 g |
| 1 tbsp | 9.4 g |
| 2 tbsp | 19 g |
| 3 tbsp | 28 g |
| 4 tbsp | 38 g |
| 8 tbsp | 75 g |
Other ingredients (US cup · 240 ml):
Sources: USDA FoodData Central, FAO/INFOODS, NIST · checked October 2026 · How we convert →
Questions:
- How many grams in a packet of gelatin?
- About 7 g (¼ oz) — 2¼ teaspoons, or ¾ tablespoon.
- How much gelatin to set 1 cup of liquid?
- About 3.5 g — half an envelope, a little over 1 teaspoon — for a set that holds its shape. For 1 litre, about 15 g (2 envelopes).
- How many grams in a tablespoon of gelatin?
- About 9.4 g, so 10 g is just over 1 tablespoon; a teaspoon is about 3.1 g.
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