Allulose: Cups to Grams
A US cup of allulose weighs 160 g. Working back the other way, 100 g is about 5/8 cup and 250 g is about 1 1/2 cups. Use the calculator for any amount in between.
💡 Tip: Allulose is a rare sugar that doesn't crystallise like regular sugar but browns faster, so check baked goods early to avoid over-browning.
Cups to grams chart for allulose
| Cups | Grams | Ounces |
|---|---|---|
| 1/4 | 40 | 1.41 |
| 1/3 | 53.3 | 1.88 |
| 1/2 | 80 | 2.82 |
| 2/3 | 107 | 3.76 |
| 3/4 | 120 | 4.23 |
| 1 | 160 | 5.64 |
| 1 1/2 | 240 | 8.47 |
| 2 | 320 | 11.3 |
| 3 | 480 | 16.9 |
Baking with allulose and why it browns fast
Allulose is a rare sugar that behaves more like real sugar than most substitutes — it dissolves, softens baked goods and doesn't leave the cooling aftertaste of erythritol. One cup weighs about 160 g (5.6 oz), noticeably less than granulated sugar, so weigh rather than scoop if precision matters. It's roughly 70% as sweet as sugar, so you may need a little extra. Its big quirk is that it browns and caramelises faster than sugar, so cookies and cakes can over-colour; lower the oven by about 25°F (15°C) and check early. Because it resists crystallising, it keeps frostings and ice creams smooth.
Grams to cups chart for allulose
| Grams | Amount | Ounces |
|---|---|---|
| 25 | 2 1/2 tbsp | 0.88 |
| 50 | 1/3 cup | 1.76 |
| 75 | 1/2 cup | 2.65 |
| 100 | 5/8 cup | 3.53 |
| 150 | 7/8 cup | 5.29 |
| 200 | 1 1/4 cups | 7.05 |
| 225 | 1 3/8 cups | 7.94 |
| 250 | 1 1/2 cups | 8.82 |
| 300 | 1 7/8 cups | 10.6 |
| 400 | 2 1/2 cups | 14.1 |
| 500 | 3 1/8 cups | 17.6 |
There are 16 tablespoons in a cup, so one tablespoon of allulose weighs roughly 10 g — and a teaspoon 3.33 g.
Allulose against the other sugars & sweeteners
Among the 10 sugars & sweeteners charted here, allulose is 2nd heaviest at 160 g per cup, between powdered sugar at 120 g and granulated sugar at 200 g.
That gap matters when you substitute by volume: use a cup of granulated sugar where the recipe wanted allulose and you have added about 40 g extra — 25% more than intended. Weighing instead of scooping removes the problem.
Allulose conversion questions
- How many grams is 1 cup of allulose?
- A level US cup of allulose comes to roughly 160 g (5.64 oz on a scale).
- How many grams is 2 cups of allulose?
- About 320 g, based on roughly 160 g per cup.
- How many cups is 150g of allulose?
- About ⅞ cup.
- Is allulose as sweet as sugar?
- No — it's about 70% as sweet, so recipes often use a little more to match sugar's sweetness.
- Can I substitute allulose for sugar in baking?
- Yes, but it browns faster and is slightly less sweet; lower the oven temperature a little and check baked goods early.
- Does allulose crystallise like sugar?
- No — it resists crystallising, which keeps frostings, syrups and ice creams smooth and scoopable.
- How many cups is 100g of allulose?
- About 5/8 cup — that is 100 divided by the 160 g a cup weighs.
- How many grams is ½ cup of allulose?
- 80 grams — half of the 160 g a full cup weighs.
- How many grams is a tablespoon of allulose?
- About 10 g per tablespoon — there are 16 tablespoons in a cup.