Milligrams to Fluid Ounces Conversion Calculator

Enter the weight in milligrams below to calculate the volume in fluid ounces.

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1 mg = 3.3814E-5 fl oz

How to Convert Milligrams to Fluid Ounces

Scales are used to measure weight

To convert a milligram measurement to a fluid ounce measurement, divide the weight by 29,573.52956 times the density of the ingredient or material.

You can use this simple formula to convert:

fluid ounces = milligrams29,573.52956 × ingredient density

Thus, the weight in fluid ounces is equal to the milligrams divided by 29,573.52956 times the density of the ingredient or material.

For example, here's how to convert 50,000 milligrams to fluid ounces for an ingredient with a density of 0.7 g/mL.
50,000 mg = 50,00029,573.52956 × 0.7 = 2.415287 fl oz

Milligrams and fluid ounces 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.

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 weight to volume conversion.

Keep reading to learn more about each unit of measure.

Milligrams

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

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

Fluid Ounces

The US fluid ounce is a unit of volume equal to 1/16 of a pint or 1/8 of a cup. The fluid ounce is sometimes referred to as an "ounce" but should not be confused with the unit of mass. One fluid ounce is equal to just under 29.6 milliliters, but in nutrition labeling, one fluid ounce is rounded to exactly 30 milliliters.[2]

The fluid ounce is a US customary unit of volume. Fluid ounces can be abbreviated as fl oz, and are also sometimes abbreviated as fl. oz. or oz. fl.. For example, 1 fluid ounce can be written as 1 fl oz, 1 fl. oz., or 1 oz. fl..

Milligram to Fluid Ounce Conversion Table

Milligram measurements converted to fluid ounces for commonly used ingredients.
Weight in Milligrams: Volume in Fluid Ounces of:
Water Milk Cooking Oil All Purpose Flour Granulated Sugar
100 mg 0.003381 fl oz 0.003251 fl oz 0.003843 fl oz 0.006392 fl oz 0.004831 fl oz
200 mg 0.006763 fl oz 0.006503 fl oz 0.007685 fl oz 0.012784 fl oz 0.009661 fl oz
300 mg 0.010144 fl oz 0.009754 fl oz 0.011528 fl oz 0.019176 fl oz 0.014492 fl oz
400 mg 0.013526 fl oz 0.013005 fl oz 0.01537 fl oz 0.025568 fl oz 0.019322 fl oz
500 mg 0.016907 fl oz 0.016257 fl oz 0.019213 fl oz 0.03196 fl oz 0.024153 fl oz
600 mg 0.020288 fl oz 0.019508 fl oz 0.023055 fl oz 0.038352 fl oz 0.028983 fl oz
700 mg 0.02367 fl oz 0.022759 fl oz 0.026898 fl oz 0.044744 fl oz 0.033814 fl oz
800 mg 0.027051 fl oz 0.026011 fl oz 0.03074 fl oz 0.051137 fl oz 0.038645 fl oz
900 mg 0.030433 fl oz 0.029262 fl oz 0.034583 fl oz 0.057529 fl oz 0.043475 fl oz
1,000 mg 0.033814 fl oz 0.032513 fl oz 0.038425 fl oz 0.063921 fl oz 0.048306 fl oz
1,100 mg 0.037195 fl oz 0.035765 fl oz 0.042268 fl oz 0.070313 fl oz 0.053136 fl oz
1,200 mg 0.040577 fl oz 0.039016 fl oz 0.04611 fl oz 0.076705 fl oz 0.057967 fl oz
1,300 mg 0.043958 fl oz 0.042268 fl oz 0.049953 fl oz 0.083097 fl oz 0.062797 fl oz
1,400 mg 0.04734 fl oz 0.045519 fl oz 0.053795 fl oz 0.089489 fl oz 0.067628 fl oz
1,500 mg 0.050721 fl oz 0.04877 fl oz 0.057638 fl oz 0.095881 fl oz 0.072459 fl oz
1,600 mg 0.054102 fl oz 0.052022 fl oz 0.06148 fl oz 0.102273 fl oz 0.077289 fl oz
1,700 mg 0.057484 fl oz 0.055273 fl oz 0.065323 fl oz 0.108665 fl oz 0.08212 fl oz
1,800 mg 0.060865 fl oz 0.058524 fl oz 0.069165 fl oz 0.115057 fl oz 0.08695 fl oz
1,900 mg 0.064247 fl oz 0.061776 fl oz 0.073008 fl oz 0.121449 fl oz 0.091781 fl oz
2,000 mg 0.067628 fl oz 0.065027 fl oz 0.07685 fl oz 0.127841 fl oz 0.096611 fl oz
2,100 mg 0.071009 fl oz 0.068278 fl oz 0.080693 fl oz 0.134233 fl oz 0.101442 fl oz
2,200 mg 0.074391 fl oz 0.07153 fl oz 0.084535 fl oz 0.140625 fl oz 0.106273 fl oz
2,300 mg 0.077772 fl oz 0.074781 fl oz 0.088378 fl oz 0.147017 fl oz 0.111103 fl oz
2,400 mg 0.081154 fl oz 0.078032 fl oz 0.09222 fl oz 0.15341 fl oz 0.115934 fl oz
2,500 mg 0.084535 fl oz 0.081284 fl oz 0.096063 fl oz 0.159802 fl oz 0.120764 fl oz
2,600 mg 0.087916 fl oz 0.084535 fl oz 0.099905 fl oz 0.166194 fl oz 0.125595 fl oz
2,700 mg 0.091298 fl oz 0.087786 fl oz 0.103748 fl oz 0.172586 fl oz 0.130426 fl oz
2,800 mg 0.094679 fl oz 0.091038 fl oz 0.10759 fl oz 0.178978 fl oz 0.135256 fl oz
2,900 mg 0.098061 fl oz 0.094289 fl oz 0.111433 fl oz 0.18537 fl oz 0.140087 fl oz
3,000 mg 0.101442 fl oz 0.09754 fl oz 0.115275 fl oz 0.191762 fl oz 0.144917 fl oz
3,100 mg 0.104823 fl oz 0.100792 fl oz 0.119118 fl oz 0.198154 fl oz 0.149748 fl oz
3,200 mg 0.108205 fl oz 0.104043 fl oz 0.12296 fl oz 0.204546 fl oz 0.154578 fl oz
3,300 mg 0.111586 fl oz 0.107294 fl oz 0.126803 fl oz 0.210938 fl oz 0.159409 fl oz
3,400 mg 0.114968 fl oz 0.110546 fl oz 0.130645 fl oz 0.21733 fl oz 0.16424 fl oz
3,500 mg 0.118349 fl oz 0.113797 fl oz 0.134488 fl oz 0.223722 fl oz 0.16907 fl oz
3,600 mg 0.12173 fl oz 0.117049 fl oz 0.13833 fl oz 0.230114 fl oz 0.173901 fl oz
3,700 mg 0.125112 fl oz 0.1203 fl oz 0.142173 fl oz 0.236506 fl oz 0.178731 fl oz
3,800 mg 0.128493 fl oz 0.123551 fl oz 0.146015 fl oz 0.242898 fl oz 0.183562 fl oz
3,900 mg 0.131875 fl oz 0.126803 fl oz 0.149858 fl oz 0.249291 fl oz 0.188392 fl oz
4,000 mg 0.135256 fl oz 0.130054 fl oz 0.1537 fl oz 0.255683 fl oz 0.193223 fl oz

References

  1. National Institute of Standards & Technology, Metric Cooking Resources, https://www.nist.gov/pml/weights-and-measures/metric-cooking-resources
  2. U.S. Food & Drug Administration, Guidance for Industry: Guidelines for Determining Metric Equivalents of Household Measures, https://www.fda.gov/regulatory-information/search-fda-guidance-documents/guidance-industry-guidelines-determining-metric-equivalents-household-measures