Convert milliliters to grams for 20+ liquid and pourable ingredients
💡 Why This Matters Liquid ingredients are measured in ml on some labels and grams on others — but 1ml isn't 1g for anything except water. Pick your ingredient, enter the milliliters, and get an accurate gram weight instantly.
Honey is about 44% denser than water — 100ml of honey weighs roughly 144g, while 100ml of water weighs almost exactly 100g.
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Milliliters measure volume; grams measure weight. The two are connected by density — grams per milliliter — which differs by liquid. This converter multiplies the milliliters you enter by that ingredient's density figure to give you an accurate gram weight. Water sits at almost exactly 1.0 g/ml, which is why it's often used as the baseline "1ml = 1g" rule of thumb — but that rule breaks down for anything denser or lighter than water.
The gram figure reflects the ingredient's typical density at room temperature. Oils and alcohols are less dense than water (they weigh less per ml), while honey, syrups, and sugar solutions are denser (they weigh more per ml) because of their dissolved sugar content.
Density shifts slightly with temperature — warm liquids expand a little and cold liquids contract, changing the precise weight marginally. For everyday cooking this is negligible; it only matters for lab-grade or industrial precision.
Useful for converting a recipe written in milliliters into gram weights for a kitchen scale, or checking a nutrition label's ml serving size against its stated gram weight. For water-based liquids the 1:1 approximation is fine for casual cooking; for oils, honey, and syrups, always use the ingredient-specific density.
Example: Say a recipe calls for 250ml of honey and you want to weigh it instead. Honey is 1.44 g/ml, so: 250 × 1.44 = 360 grams. For 250ml of water instead: 250 × 1.0 = 250 grams — same volume, 110g heavier for honey.
Only for water, and only approximately. Water is close enough to 1g per ml that people often round it that way, but oil, honey, and milk all have different densities and weigh noticeably more or less than water at the same volume.
Honey is denser than water because it's mostly dissolved sugar with very little water content, so the same 100ml packs in more mass. That's why recipes calling for honey by weight give a noticeably higher gram number than the same volume of water.
Slightly — liquids expand a little when warm and contract when cold, which changes density marginally. For home cooking this effect is small enough to ignore; it only matters in lab-precision or industrial contexts.