The mL to grams calculator converts volume to mass by multiplying milliliters by substance density in grams per milliliter (g/mL). This is the most direct volume-to-mass conversion since density is defined as mass per unit volume. For water at 4 °C (39.2 °F), density is exactly 1.000 g/mL, making 1 mL = 1 g. Cooking recipes, pharmacy calculations, and chemistry labs frequently require this conversion when switching between volume measurements (cups, teaspoons) and weight measurements (grams on a scale).
Milliliters to Grams Calculator
Convert milliliters (mL) to grams (g) using substance density. Enter a value, select a substance, and get instant gram results.
Conversion Calculator
g = mL × density (g/mL)
Real-time sync active
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How mL to Grams Calculator Works
Enter Volume in mL → Select Substance Density → Read Gram Result
STEP 1
Enter Volume in mL
Type the milliliter value you want to convert. The calculator accepts decimals and updates the gram result in real time as you type.
STEP 2
Select Substance Density
Choose a preset substance (water, milk, honey, olive oil, etc.) or enter a custom density in g/mL. Density determines how much mass one milliliter of the substance has.
STEP 3
Read Gram Result
The gram (g) result appears instantly. Additional conversions to milligrams, kilograms, ounces, and pounds are also displayed.
mL to Grams Formula
g = mL × density (g/mL)
g Result
mL Volume
× density g/mL
Water Example
g = 250 mL × 1.000 g/mL
g = 250
250 mL of water = 250 g
Olive Oil Example
g = 100 mL × 0.916 g/mL
g = 91.6
100 mL of olive oil = 91.6 g
The milliliters to grams formula multiplies volume by density. Since density is expressed in grams per milliliter (g/mL), the milliliter units cancel out and the result is in grams. Water has a density of 1.000 g/mL at 4 °C, which is why 1 mL of water weighs exactly 1 gram. Substances denser than water (like honey at 1.420 g/mL) produce more grams per mL, while lighter substances (like ethanol at 0.789 g/mL) produce fewer. The International System of Units (SI) defines the gram as one-thousandth of a kilogram.
mL to Grams Conversion Chart
Shows gram values for common mL measurements across 4 substances.
| mL | Grams (water) |
|---|---|
| 1 | 1.000 |
| 5 | 5.000 |
| 10 | 10.000 |
| 15 | 15.000 |
| 30 | 30.000 |
| 50 | 50.000 |
| 100 | 100.000 |
| 250 | 250.000 |
| 500 | 500.000 |
| 1,000 | 1,000.000 |
The mL to grams chart above shows water values where 1 mL = 1 g. For honey, multiply by 1.420; for olive oil, multiply by 0.916; for milk, multiply by 1.030. Baking and cooking frequently require mL to grams conversion when a recipe lists ingredients by volume but a kitchen scale measures in grams. Professional bakers prefer weight-based measurements for consistency because volume varies with how ingredients are packed.
Frequently Asked Questions
For water, 1 mL equals exactly 1 gram because water density is 1.000 g/mL. For other substances, 1 mL equals the density value in grams (e.g., 1 mL of honey = 1.420 g).
No. 1 mL = 1 gram only for water at about 4 °C. Other liquids have different densities, so the gram value per mL changes.
Multiply the mL value by the substance density in g/mL. Formula: grams = mL × density (g/mL).
Water is 1.000 g/mL, whole milk is 1.030 g/mL, honey is 1.420 g/mL, olive oil is 0.916 g/mL, and vegetable oil is about 0.920 g/mL.
Grams measure mass directly, which is more accurate than volume. Volume can vary based on how tightly ingredients are packed, but weight remains constant.