# Quarts to Milligrams Conversion Calculator

Enter the volume in quarts below to calculate the weight in milligrams.

**Results in Milligrams:**

946.352946 g

Do you want to convert milligrams to quarts?

## How to Convert Quarts to Milligrams

Since quarts are a unit of volume and milligrams are a unit of mass, which are different physical quantities, we need to know one more physical quantity of the ingredient or substance to convert between them. In this case, we need to account for the density of the substance whenever we do a conversion.

Therefore, to convert between quarts and milligrams of an ingredient or substance, we must either multiply or divide by its density, depending on which direction we are performing the conversion.

### Quarts to Milligrams Formula

To convert a measurement in quarts to milligrams, multiply the volume by the density of the ingredient or material. Note that in order for this to work, the density must be in milligrams per quart (mg/qt).

If the density is given in grams per milliliter (g/mL), then first multiply the density by 946,352.946 to convert to mg/qt.

For a density given in g/mL, you can use this simple formula to convert:

milligrams = quarts × 946,352.946 × density

Thus, the weight in milligrams is equal to the volume in quarts multiplied by 946,352.946 times the density (in g/mL) of the ingredient, substance, or material.

**For example,**here's how to convert 5 quarts to milligrams for an ingredient with a density of 0.7 g/mL.

## When to Convert Quarts to Milligrams

Quarts and milligrams are both commonly used to measure cooking ingredients.

For cooking applications, most chefs suggest measuring dry ingredients by weight rather than volume to improve accuracy in the measurements.^{[1]} The density of dry ingredients can vary for a variety of reasons, such as compaction and clumping.

The best way to ensure an accurate conversion is to use a scale. When a scale is not available, a calculator like the one above is a good way to estimate the volume to weight conversion.

Another useful application of weight and volume conversions is chemistry. When performing chemical reactions by combining separate chemicals to produce a new chemical, one must know the exact amount of each chemical to add in order to maximize the yield of the reaction.

It is common to mix powdered chemicals with liquid, or aqueous, chemicals, and this is where it becomes very useful to convert between weights and volumes.^{[2]}

Keep reading to learn more about each unit of measure.

## How Many Milligrams Are in a Quart?

The actual weight of a quart will vary depending on the density of the material. The table below shows how many milligrams of various wet and dry ingredients are in a quart.

Volume in Quarts: | Weight in Milligrams of: | ||||
---|---|---|---|---|---|

Water | Milk | Cooking Oil | All Purpose Flour | Granulated Sugar | |

1/8 qt | 118,294 mg | 121,843 mg | 104,099 mg | 62,578 mg | 100,000 mg |

1/4 qt | 236,588 mg | 243,686 mg | 208,198 mg | 125,155 mg | 200,000 mg |

1/3 qt | 315,451 mg | 324,915 mg | 277,597 mg | 166,874 mg | 266,667 mg |

1/2 qt | 473,176 mg | 487,372 mg | 416,395 mg | 250,310 mg | 400,000 mg |

2/3 qt | 630,902 mg | 649,829 mg | 555,194 mg | 333,747 mg | 533,333 mg |

3/4 qt | 709,765 mg | 731,058 mg | 624,593 mg | 375,466 mg | 600,000 mg |

1 qt | 946,353 mg | 974,744 mg | 832,791 mg | 500,621 mg | 800,000 mg |

## What Is a Quart?

The US liquid quart is a unit of fluid volume equal to one fourth of a gallon, two pints, or four cups.

The liquid quart should not be confused with the dry quart (US) or the imperial quart, which are different units. However, when someone refers to a volume in quarts, they typically mean the US liquid quart.

The quart is a US customary unit of volume. Quarts can be abbreviated as *qt*; for example, 1 quart can be written as 1 qt.

Learn more about quarts.

## What Is a Milligram?

The milligram is a unit of mass equal to 1/1,000 of a gram, or 0.0154 grains.

The milligram, or milligramme, is an SI unit of mass in the metric system. In the metric system, "milli" is the prefix for thousandths, or 10^{-3}. Milligrams can be abbreviated as *mg*; for example, 1 milligram can be written as 1 mg.

A milligram is also frequently referred to as a unit of weight. While technically, a milligram is a measure of mass, and weight is actually a measure of force, the two are equivalent as long as we are performing our calculations on Earth.

For example, an object with a mass of 1 milligram weighs 1 milligram on Earth, but only weighs one-sixth of that on the moon, yet still has the same mass.

Learn more about milligrams.

## References

- National Institute of Standards & Technology, Culinary Measurement Tips, https://www.nist.gov/pml/owm/culinary-measurement-tips
- CK-12 Foundation, Introductory Chemistry (CK-12) - 12.6: Mass-Volume Stoichiometry, https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/12%3A_Stoichiometry/12.06%3A_Mass-Volume_Stoichiometry

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