Why these are so much heavier than water per cup
Honey, maple syrup, and corn syrup are all concentrated sugar solutions with very little water compared to something like milk — that concentration is exactly what makes them dense. A cup of water weighs about 236g; a cup of honey weighs about 340g — roughly 44% heavier for the same volume, purely because honey packs so much more sugar mass into that space. This matters most when a recipe gives one of these in cups but you're weighing ingredients for precision, since assuming "1 cup = roughly 240g" (a water-based assumption) would leave you significantly short on a honey or syrup measurement.
A practical measuring tip
Honey and syrup cling to measuring cups more than water-based liquids, making level, waste-free measuring harder. A common trick: lightly coat the measuring cup with a neutral oil or cooking spray first — the honey or syrup will slide out cleanly rather than sticking to the sides, which also makes weighing on a scale (tare the cup, then pour) far more accurate than eyeballing a sticky cup fill line.
Quick reference chart
| Type | 1 cup | ½ cup |
|---|---|---|
| Honey | 340g | 170g |
| Maple syrup | 322g | 161g |
| Corn syrup | 328g | 164g |
FAQ
Why does honey vary slightly by type/brand? Water content and crystallization state both shift density slightly — raw, less-processed honey can vary a bit more than commercial filtered honey.
Is agave nectar the same density? Close, but agave is slightly less dense than honey — if precision matters, weigh it separately rather than assuming an exact match.