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Milligrams to Milliliters Converter

Convert milligrams (mg) to milliliters (mL), 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
0.001 mL
Density used
1 g/mL (USDA FDC 174158, 1 ml = 1 g)

1 milligrams of water = 0.001 milliliters. 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 fluid ounces0.000033814
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
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. = 0.001 mL

How to convert milligrams to milliliters

1 mg = 0.001 mL, so multiply by 0.001 to go from milligrams to milliliters. Going the other way, 1 mL = 1,000 mg.

mL = mg × 0.001
mg = mL × 1,000

Worked example:

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

Milligrams to milliliters table

MilligramsMilliliters
1 mg0.001 mL
2 mg0.002 mL
3 mg0.003 mL
4 mg0.004 mL
5 mg0.005 mL
6 mg0.006 mL
7 mg0.007 mL
8 mg0.008 mL
9 mg0.009 mL
10 mg0.01 mL
15 mg0.015 mL
20 mg0.02 mL
25 mg0.025 mL
30 mg0.03 mL
40 mg0.04 mL
50 mg0.05 mL
75 mg0.075 mL
100 mg0.1 mL
250 mg0.25 mL
500 mg0.5 mL
1000 mg1 mL

About the units

Milligrams (mg)
Milligrams, a metric unit. Definition: BIPM SI Brochure.
Milliliters (mL)
Milliliters, a metric unit. Definition: BIPM SI Brochure.

Formula version 0.1.0Reviewed