ml to mg Calculator

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What is ml to mg Conversion and Why Should You Care?

Converting milliliters (ml) to milligrams (mg) is essential when you need to know the mass of a substance based on its volume. This is particularly useful in cooking, science experiments, and medication dosing.

Since milliliters measure volume and milligrams measure mass, the density of the substance is required to make this conversion accurately.

How to Calculate ml to mg

The formula for converting ml to mg is:

[\text{Mass (mg)} = \text{Volume (ml)} \times 1000 \times \text{Density (kg/m}^3\text{)}]

Where:

  • Mass is the result in milligrams
  • Volume is the amount in milliliters
  • Density is the substance density in kg/m³

Calculation Example

Convert 5 ml of a liquid with density 0.8 kg/m³:

[\text{Mass} = 5 \times 1000 \times 0.8 = 4000 \text{ mg}]

So 5 ml of this liquid equals 4000 milligrams.

Reference Table

Volume (ml) Density (kg/m³) Mass (mg)
1 1 1000
5 0.8 4000
10 1.2 12000
20 0.5 10000

Common Substance Densities

Substance Density (kg/m³)
Water 1.0
Olive Oil 0.92
Honey 1.42
Alcohol 0.79
Milk 1.03

Frequently Asked Questions

It converts volume (milliliters) to mass (milligrams) using the substance density. This is essential when precision measurements require knowing mass rather than volume.

Water has a density of approximately 1 kg/m³ at room temperature. Using this value, 1 ml of water equals 1000 mg.

Yes, as long as you know the density of your substance in kg/m³. Different substances have different densities, so the conversion varies.

Density relates mass to volume. Without it, conversion between these units is impossible since different substances with the same volume have different masses.