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Milligrams to US Fluid Ounces Converter

Convert milligrams (mg) to US fluid ounces (fl oz), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Convert cups and spoons to grams or ounces (or back) for a chosen ingredient, using USDA weights, or enter your own density.

The quantity to convert. Fractions such as 3/4 or 1 1/2 are accepted.
Unit you want. Swap exchanges the two units.
Weight per cup differs by ingredient and by how it is measured (sifted, packed, chopped). Each option names the assumption used; choose Other to enter your own density.
Only used when the ingredient is Other: the weight per volume of your ingredient.
Result
Converted amount
0.000033814 fl oz
Density used
1 g/mL (USDA FDC 174158, 1 ml = 1 g)

1 milligrams of water = 0.000033814 US fluid ounces. Weights for cups and spoons vary with how the ingredient is measured, so treat this as a close estimate.

Show the the same amount in other volume units (17 rows)
The same amount in other volume units
UnitAmount
US teaspoons0.000202884
US tablespoons0.000067628
US cups0.00000422675
US liquid pints0.00000211338
US liquid quarts0.00000105669
US gallons2.64172e-7
US nutrition-label fluid ounces0.0000333333
US nutrition-label cups0.00000416667
milliliters0.001
liters0.000001
metric teaspoons0.0002
metric tablespoons0.0000666667
metric cups0.000004
imperial fluid ounces0.0000351951
imperial pints0.00000175975
imperial quarts8.79877e-7
imperial gallons2.19969e-7
Show the working
  1. 1 mg = 0.001 g
  2. ÷ 1 g/mL (USDA FDC 174158, 1 ml = 1 g) = 0.001 mL
  3. = 0.0000338140227018 fl oz

How to convert milligrams to us fluid ounces

1 mg = 0.000033814 fl oz, so multiply by 0.000033814 to go from milligrams to US fluid ounces. Going the other way, 1 fl oz = 29,573.5 mg.

fl oz = mg × 0.000033814
mg = fl oz × 29,573.5

Worked example:

5 mg = 0.005 g
÷ 1 g/mL (USDA FDC 174158, 1 ml = 1 g) = 0.005 mL
= 0.000169070113509 fl oz

Milligrams to us fluid ounces table

MilligramsUS Fluid Ounces
1 mg0.000033814 fl oz
2 mg0.000067628 fl oz
3 mg0.000101442 fl oz
4 mg0.000135256 fl oz
5 mg0.00016907 fl oz
6 mg0.000202884 fl oz
7 mg0.000236698 fl oz
8 mg0.000270512 fl oz
9 mg0.000304326 fl oz
10 mg0.00033814 fl oz
15 mg0.00050721 fl oz
20 mg0.00067628 fl oz
25 mg0.000845351 fl oz
30 mg0.00101442 fl oz
40 mg0.00135256 fl oz
50 mg0.0016907 fl oz
75 mg0.00253605 fl oz
100 mg0.0033814 fl oz
250 mg0.00845351 fl oz
500 mg0.016907 fl oz
1000 mg0.033814 fl oz

About the units

Milligrams (mg)
Milligrams, a metric unit. Definition: BIPM SI Brochure.
US Fluid Ounces (fl oz)
US fluid ounces, a US customary unit. Definition: NIST Handbook 44 Appendix C (US customary units; US gallon = 231 in³).

Formula version 0.1.0Reviewed