Monk Fruit Sweetener

One US cup of monk fruit sweetener weighs 192 grams. Going the other way, 100 grams is about 0.52 cups.

Also called monk fruit sweetener, monkfruit sweetener, monk fruit sugar substitute, monk fruit erythritol blend, luo han guo sweetener, monkfruit sugar substitute, Lakanto Classic, Whole Earth monk fruit.

One cup of granulated monk fruit sweetener — the Lakanto Classic, Whole Earth, or Splenda-style blend that dominates retail shelves — weighs about 192 grams (0.812 g/mL), the same as sugar because the product is 95-99% erythritol by mass with monk fruit extract as a trace potency ingredient. Multiple producer labels converge at 4 g per teaspoon, and independent direct measurement of the erythritol bulking agent (USDA Branded UPC 858982001733) confirms 192 g per US cup for the base ingredient.

Monk fruit (Siraitia grosvenorii, also called luo han guo or Buddha fruit) is a Southeast Asian cucurbit whose sweetness comes from mogrosides — glycosylated triterpene compounds that are 150 to 200 times sweeter than sucrose per unit mass. Because the extract is so intensely sweet, using it directly in place of sugar would require weighing to the milligram; almost no retail product is sold this way. Instead, monk fruit extract is blended with a bulk sweetener (usually erythritol, sometimes allulose or a small amount of maltodextrin/dextrose) at trace concentration, producing a granular product that measures cup-for-cup like sugar and delivers matching sweetness at zero calories.

Three distinct product categories exist under the 'monk fruit sweetener' label, and they have very different densities. This entry covers only the first. First: granulated 1:1 sugar-substitute blends (Lakanto Classic, Whole Earth, Splenda Monk Fruit Jar, most bulk-bag retail products). These are typically 95-99% erythritol with monk fruit extract added for potency. Density is essentially erythritol's, 192 g/cup. Second: sweetness-equivalency packet products, most notably Monk Fruit In The Raw. USDA Branded Food record (UPC 044800710097) measures this product at 25 g per metric cup — about 24 g per US cup, roughly one-eighth the density of the granulated blend. These packets use maltodextrin as a spray-dried fluffy carrier so that one 0.5-gram packet delivers the sweetness of one teaspoon of sugar; measuring by cup with these packet products would give wildly wrong results and this entry does not apply. Third: pure monk fruit extract powder (NuNaturals Pure Monk Fruit, DureLife 100% Pure, Lakanto Pure Extract, various others). Sold in gram quantities per package, used a few milligrams per recipe, never measured by cup. This entry does not apply to pure extract either.

Subvariants within the granulated-blend category behave similarly. Lakanto Golden (raw-cane substitute, uses monk fruit from seeds and peel for color) is erythritol-based and matches Classic at 192 g/cup. Besti Monk Fruit Sweetener uses allulose instead of erythritol; allulose bulk density is 0.812 g/mL by the existing site entry, so Besti also lands at 192 g/cup and this entry's figure applies. Powdered monk fruit sweetener (Lakanto Powdered, Besti Powdered) is a finer grind sold as a confectioners' sugar substitute; density runs somewhat lower (130-160 g/cup range depending on how it settles) and is not covered here.

Practical baker guidance: for the granulated blend, substitute 1:1 by both volume and weight for regular sugar in most recipes, with two behavioral notes. Erythritol produces a mild cooling sensation on the tongue when it dissolves, which is why some brands add small amounts of stevia or allulose to mask it. Erythritol can also recrystallize in high-moisture cooled applications (ganache, custard, some syrups), producing gritty texture; using the powdered form or blending with allulose mitigates this. For dry baking (cookies, quick breads, muffins), the granulated blend behaves indistinguishably from sugar for measurement purposes.