Free ml to grams calculator
Enter a volume in millilitres and pick your ingredient — this mL to grams converter multiplies by ingredient density (water, milk, oil, honey, and more) to return the exact weight, updated live, as you type.
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Volume-to-weight conversions are approximate and vary by ingredient brand, moisture, and packing method.
Results are estimates. Consult a professional.
How the mL to grams converter works
Millilitres measure volume; grams measure mass. To convert between them you need the ingredient's density — how many grams fit in one millilitre of that liquid. For water the answer is exactly 1 g/mL at 4 °C, and close enough to 1 g/mL for kitchen purposes at room temperature. For everything else — milk, oil, honey, cream — density varies, and using the wrong figure introduces real measurement error.
Worked example: weighing honey from a volume measurement
Jordan is making a ginger-soy marinade that calls for 120 mL of honey. He wants to pour from the honey jar directly onto a scale rather than fussing with a sticky measuring cup. Honey's density is 1.42 g/mL.
mL to grams for common cooking liquids
The table below covers the most common liquid volumes in recipes — from a few tablespoons up to a full pint. The 240 mL row matches one US cup. Notice how honey adds nearly 40% more mass than the same volume of water.
| mL | Water | Whole milk | Vegetable oil | Honey |
|---|---|---|---|---|
| 50 mL | 50.0 g | 51.5 g | 46.0 g | 71.0 g |
| 100 mL | 100.0 g | 103.0 g | 92.0 g | 142.0 g |
| 150 mL | 150.0 g | 154.5 g | 138.0 g | 213.0 g |
| 200 mL | 200.0 g | 206.0 g | 184.0 g | 284.0 g |
| 240 mL | 240.0 g | 247.2 g | 220.8 g | 340.8 g |
| 300 mL | 300.0 g | 309.0 g | 276.0 g | 426.0 g |
| 500 mL | 500.0 g | 515.0 g | 460.0 g | 710.0 g |
Source: USDA FoodData Central. 240 mL = 1 US cup. Oil density 0.92 g/mL (typical vegetable/canola/sunflower oil). Honey density 1.42 g/mL (average commercial honey).
Tips for converting liquid volumes to grams
Converting mL to grams unlocks the most accurate way to measure liquids in the kitchen: pour directly onto a tared scale and stop at the target weight. Here is how to make that work reliably.
- Tare (zero) the scale with your bowl or jug in place — press the tare button with the empty vessel on the scale, then pour until you hit the gram target. This eliminates container weight and gives you a direct mass reading.
- Treat oil and water as different ingredients — vegetable oil is about 8% lighter than water per millilitre. Swapping mL-for-grams without adjusting changes a salad dressing or cake recipe by a noticeable margin.
- Warm sticky liquids before measuring — honey, golden syrup, and molasses become significantly less viscous at 35–40 °C. Gently warming the jar in hot water for a few minutes makes pouring more accurate and reduces waste.
- Use mL for water-based liquids in a pinch — stock, wine, juice, and most water-based sauces are close enough to water's density (1 g/mL) that the error is under 3–5%, acceptable for most savoury cooking.
- Coconut oil changes state near room temperature — it solidifies below about 24 °C and melts above it. Measure it in its liquid state for a reliable volume-to-gram conversion; solid coconut oil packed into a measuring cup gives inconsistent volumes.
Accuracy and limitations
The formula grams = mL × density is exact given a correct density value. The practical uncertainty comes from the density figure itself. Whole milk density ranges from about 1.028 to 1.038 g/mL depending on fat content and brand; heavy cream varies from about 0.99 to 1.02 g/mL by fat percentage; honey varies from 1.38 to 1.45 g/mL by moisture content. The values in this calculator are mid-range figures suitable for recipe work.
Temperature also affects density: a liquid heated to cooking temperature is slightly less dense than the same liquid cold. For most recipe purposes the difference is under 1–2% and can be ignored. For precision work such as food science, fermentation gravity calculations, or nutritional analysis by weight, use the density at your actual measurement temperature.
Volume and density terms defined
About this mL to grams converter
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