How to use the ml to grams converter
- Enter the volume in milliliters you want to convert.
- Select a substance from the dropdown, or type a custom density in g/ml.
- The result updates live, showing the equivalent weight in grams plus tablespoons and teaspoons.
- Use the reverse row to see how many milliliters equal one gram of that substance.
How the ml to grams conversion works
Milliliters measure volume while grams measure mass. To convert between them you need the density of the substance, expressed in grams per milliliter (g/ml). The formula is straightforward:
grams = milliliters x density
For example, honey has a density of about 1.42 g/ml. If you have 100 ml of honey, the calculation is 100 x 1.42 = 142 grams. Water is the simplest case because its density is almost exactly 1.00 g/ml at room temperature, meaning 1 ml of water weighs 1 gram.
To go the other direction and convert grams to ml, divide the mass by the density: ml = grams / density. So 142 grams of honey divided by 1.42 gives you back 100 ml.
Density reference table for common ingredients
The densities below are approximate values at room temperature. For dry ingredients like flour, the density changes significantly depending on whether the ingredient is sifted, spooned or scooped directly from the bag. These figures assume a spooned-and-leveled method for powders.
| Ingredient | Density (g/ml) |
|---|---|
| Water | 1.00 |
| Whole milk | 1.03 |
| Vegetable oil | 0.92 |
| Olive oil | 0.913 |
| Butter | 0.96 |
| Honey | 1.42 |
| Maple syrup | 1.34 |
| All-purpose flour (spooned) | 0.51 |
| Granulated sugar | 0.84 |
| Powdered sugar | 0.48 |
| Brown sugar (packed) | 0.90 |
| Cocoa powder | 0.36 |
| Fine table salt | 1.22 |
| Ethanol | 0.789 |
These values are rounded from USDA FoodData Central and the King Arthur ingredient weight chart and are approximate for foods: real weights vary with brand, humidity and packing, and they are an estimate, not a lab measurement. If your recipe calls for an ingredient not listed here, look up its specific gravity or density and enter it in the custom density field.
Tablespoons and teaspoons in milliliters
Many recipes use spoons rather than metric volumes. The exact US definitions are:
- 1 US tablespoon = 14.78676478125 ml
- 1 US teaspoon = 4.92892159375 ml (exactly one-third of a tablespoon)
This converter shows the tablespoon and teaspoon equivalents alongside the gram result so you can cross-reference with recipes that use either system. Note that Australian tablespoons are defined as 20 ml, which is larger than the US standard. If you are following an Australian recipe, adjust accordingly or use a dedicated tablespoon to grams tool.
Why density matters in baking
In cooking, especially baking, measuring by weight is far more reliable than measuring by volume. A cup of flour can weigh anywhere from 110 to 150 grams depending on how it was scooped, aerated or settled. Converting ml to grams removes that ambiguity once you know the correct density.
Liquids are less variable, but they still differ from water. Vegetable oil is lighter than water (0.92 g/ml), so 100 ml of oil weighs only 92 grams. Honey is much heavier (1.42 g/ml), making 100 ml weigh 142 grams. Using this ml to grams converter ensures your ingredient ratios stay accurate regardless of the substance.
If you also need to scale recipes into imperial units, you can take the gram result and use a grams to pounds or ounces to grams converter for further adjustments.
Common mistakes when converting milliliters to grams
The most frequent error is assuming every liquid has the same density as water. While water is a convenient baseline at 1 g/ml, syrups, oils and dairy products deviate enough to affect recipes and scientific calculations. Always check the density before converting.
Another mistake is confusing US and metric tablespoons. A US tablespoon is roughly 14.79 ml, while a metric tablespoon used in some countries is exactly 15 ml. That small difference compounds over large batches.
Finally, remember that dry ingredients settle. Flour measured straight from a compressed bag will be denser than flour that has been sifted. The density values in this tool assume a standard spooned-and-leveled technique. For precision work, weigh the ingredient directly instead of relying on volume conversions.
Worked examples
| Example | Input | Result |
|---|---|---|
| 250 ml of water | Volume (ml): 250; Substance: water | Grams: 250; Density used: 1 g/ml; US tablespoons: 16.91; US teaspoons: 50.72; Reverse: 1 gram equals: 1 ml |
| 100 ml of honey | Volume (ml): 100; Substance: honey | Grams: 142; Density used: 1.42 g/ml; US tablespoons: 6.76; US teaspoons: 20.29; Reverse: 1 gram equals: 0.7042 ml |
| 500 ml of all-purpose flour | Volume (ml): 500; Substance: flour-ap | Grams: 255; Density used: 0.51 g/ml; US tablespoons: 33.81; US teaspoons: 101.44; Reverse: 1 gram equals: 1.9608 ml |
| 15 ml of olive oil with custom density | Volume (ml): 15; Substance: olive-oil; Custom density (g/ml): 0.91 | Grams: 13.65; Density used: 0.91 g/ml; US tablespoons: 1.01; US teaspoons: 3.04; Reverse: 1 gram equals: 1.0989 ml |
FAQ
Is 1 ml always equal to 1 gram?
No. One milliliter equals one gram only for substances with a density of 1.00 g/ml, such as pure water at about 4 degrees Celsius. Oils, syrups and dry ingredients all have different densities, so their gram weight per milliliter varies.
How do I convert grams to ml?
Divide the number of grams by the density of the substance in g/ml. For example, 50 grams of olive oil (density 0.913 g/ml) is 50 / 0.913 = 54.76 ml.
What is the density of milk in g/ml?
Whole cow milk has a density of approximately 1.03 g/ml at room temperature. Skim milk is slightly denser, around 1.033 to 1.036 g/ml, because removing fat (which is lighter than water) increases the overall density.
How many grams is 100 ml of flour?
Using the spooned density of 0.51 g/ml for all-purpose flour, 100 ml weighs about 51 grams. Scooping directly from the bag packs the flour tighter and increases the weight.
Does temperature affect the ml to grams conversion?
Yes. Most liquids expand when heated, which lowers their density. Water at 20 degrees Celsius has a density of about 0.998 g/ml, while at 80 degrees Celsius it drops to about 0.972 g/ml. For everyday cooking the difference is small, but for laboratory work it matters.
Can I use this tool for any liquid?
You can use the custom density field to enter the g/ml value for any substance. Look up the specific gravity or density of the liquid and type it in to get an accurate conversion.