How Many Grams in a Cup of Honey? (It Depends on Your Cup)

About 340 grams. That is how many grams in a cup of honey in a US cup: 340 grams, 12 ounces, roughly one and a half times the weight of a cup of water. If you came for the number, you have it. The number has a caveat worth thirty seconds, because honey is the ingredient that most exposes the gap between volume and weight, and that gap is where baking errors hide.

Honey's density sits around 1.42 grams per milliliter, about 42% denser than water. That is the whole explanation: a cup is a volume, and honey packs far more sugar into that volume than water packs molecules. Published charts scatter between 332 and 340 grams per US cup, because real honey's density shifts slightly with floral source and water content. Use 340 as the standard value. It is what most conversion calculators use, and the difference against the alternatives is under 2.5%, below the noise of most recipes.

The full honey table

Why honey is the density lesson

Flour is the famous conversion problem because a cup of it can weigh anywhere from 115 to 163 grams depending on how you pack it. Honey is the opposite lesson: it barely varies at all, which makes it the cleanest demonstration that cups were never a weight system. Two recipes calling for "1 cup" can mean 125 grams of flour or 340 grams of honey, a factor of almost three, and the cup itself is doing no work in telling you which. Once you have seen that number, weighing ingredients stops feeling like fussiness and starts feeling like the only sane approach.

The one measuring trick that actually matters for honey: skip the cup entirely when a recipe gives grams. Put the bowl on the scale, tare it, and pour until you hit 340. Honey sticks to cups and leaves a tablespoon of itself behind, which means a "cup" of honey measured by volume routinely delivers 320 grams of honey plus 20 grams of honey on the cup. Tare and pour solves both problems at once. If you must use the cup, a thin coat of oil or water makes it release cleanly.

Temperature shifts the viscosity more than the density, but it still matters for measuring. Cold honey mounds on the spoon and throws volume measurements off; warm honey flows like oil. Room temperature is the reference point the charts assume. And if your honey has crystallized, which raw honey does, its packing changes enough that volume numbers get unreliable while weight stays exact. Another vote for the scale.

Frequently asked questions

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