mL to Grams Calculator
Select an ingredient to auto-fill its density, or choose Custom to enter your own
Density is auto-filled from the ingredient. Edit to override for custom substances.
Quick Volume Select
Multiply all results by this factor (e.g., 1.5 for 150% of the original recipe)
Enter a Volume or Weight
Select an ingredient, enter a volume or weight, and see the instant conversion with formula, density chart, and reference table.
How to Use the mL to Grams Calculator
Select Your Ingredient
Choose your ingredient from the dropdown menu, which is organized by category (Liquids, Flours, Sweeteners, Fats, Dairy, Grains). The density field will auto-fill with the correct g/mL value for that ingredient. If your ingredient is not listed, choose Custom and enter its density manually.
Enter Your Volume or Weight
Choose your conversion direction — mL to Weight, or Weight to mL. Enter the known quantity and select the appropriate unit. Volume units include mL, tsp, tbsp, fl oz, cup, and liter. Weight output units include mg, g, kg, oz, and lb. Use the quick-select buttons (1 tsp, 1 tbsp, 1 cup, etc.) to fill common values instantly.
Review the Result and Formula
The main result shows your converted value with the unit. The formula section shows the exact calculation used (e.g., 250 mL × 1.030 g/mL = 257.5 g for whole milk). The density comparison chart shows how your ingredient compares to water and other common ingredients.
Use the Reference Table and Export
Scroll down to see the quick reference table showing your ingredient's gram equivalent at 9 common volume amounts (1 tsp through 1 liter). If you need to scale a recipe, enter a scale factor (e.g., 1.5 for 150% of the recipe). Click Export CSV to download the reference table, or Print Results for a printable conversion card.
Frequently Asked Questions
How many grams is 100 mL of common ingredients?
The gram equivalent of 100 mL varies significantly by ingredient because each has a different density. For water: 100 g (density 1.000 g/mL). For whole milk: 103 g (1.030 g/mL). For olive oil: 91 g (0.910 g/mL). For all-purpose flour: 52.9 g (0.529 g/mL). For granulated sugar: 84.5 g (0.845 g/mL). For honey: 142 g (1.420 g/mL). For butter: 91.1 g (0.911 g/mL). For heavy cream: 99.4 g (0.994 g/mL). For cocoa powder: 46.5 g (0.465 g/mL). For salt: 120 g (1.200 g/mL). The formula in every case is: grams = mL × density. Always use ingredient-specific density for accurate conversions — never assume 1 mL = 1 g unless the ingredient is water.
How many grams is 1 cup of flour, sugar, or butter?
One US cup equals 236.588 mL. Using ingredient densities: 1 cup of all-purpose flour weighs approximately 125 grams (236.588 × 0.529). 1 cup of granulated sugar weighs approximately 200 grams (236.588 × 0.845). 1 cup of butter weighs approximately 216 grams (236.588 × 0.911). 1 cup of powdered sugar weighs approximately 142 grams (236.588 × 0.600). 1 cup of brown sugar (packed) weighs approximately 208 grams (236.588 × 0.880). 1 cup of honey weighs approximately 336 grams (236.588 × 1.420). 1 cup of water weighs exactly 236.588 grams (approximately 237 g). These values assume standard measuring cup technique and average ingredient density.
Why does the calculator use different densities than other sources?
Ingredient densities are not fixed constants — they vary based on how the ingredient was manufactured, stored, and measured. Different sources report slightly different density values because they were measured under different conditions. All-purpose flour density ranges from about 0.45 to 0.65 g/mL depending on how sifted or packed the flour is. Butter ranges from 0.91 to 0.96 g/mL depending on temperature and water content. Our values represent commonly accepted averages used in food science literature and validated against multiple competitor tools and industry reference tables. For critical food science or commercial production applications, measure your specific ingredient's density directly using a calibrated scale and volumetric container, then enter it as a custom density value.
Can I convert grams back to milliliters?
Yes. Use the Swap Direction toggle to switch to Weight to mL mode. Enter the weight in grams (or other weight units) and the calculator computes the equivalent volume in mL or your chosen volume unit. The formula is: mL = grams ÷ density. For example, 150 grams of whole milk (density 1.030 g/mL) equals 145.6 mL. This reverse conversion is particularly useful when following a recipe that lists volumes but you want to verify amounts on a kitchen scale, or when you have a known weight of ingredient and need to know how much volume it occupies in a container or measuring cup.
How do I convert milliliters to grams for a custom ingredient not in the list?
Select Custom from the ingredient dropdown. The density field becomes fully editable. Enter the density of your ingredient in g/mL. You can find density values on ingredient packaging, manufacturer technical data sheets, food composition databases (such as the USDA FoodData Central), or scientific resources. Common non-food substances: ethanol (alcohol) is approximately 0.789 g/mL, glycerin is approximately 1.261 g/mL, and distilled white vinegar is approximately 1.005 g/mL. Once you enter the density, all conversions, the formula, the reference table, and the comparison chart update automatically to reflect your custom ingredient.
How accurate is this mL to grams calculator?
The mathematical conversion is exact for the density value used. The accuracy of your final result depends on how closely the preset density matches your actual ingredient. Liquid ingredients (water, oils, syrups, milk) have stable densities that vary by less than 1–2% under normal kitchen conditions, so conversions for these are highly accurate. Powder and dry ingredients (flours, sugars, spices) have more variable densities depending on scooping technique, humidity, and compaction — variations of 5–15% from the preset value are common. For the highest accuracy with dry ingredients, always weigh on a digital kitchen scale and use the gram-to-mL reverse conversion if needed. The density comparison chart and reference table are computed from the same density values used in the calculation.