Mass Conversion Calculator

Convert between mg, g, kg, lb, oz for accurate dosage calculations

Precision Dosing

Mass Conversion

Value

From Unit

To Unit

Significant Figures

100 Milligram (mg) =

Enter Values

Conversion Factor

1 mg = 1000.000000 g

1 kilogram (kg)2.20462 pounds (lb)

1 pound (lb)453.592 grams (g)

1 ounce (oz)28.3495 grams (g)

1 grain (gr)64.7989 milligrams (mg)

1 gram (g)1000 milligrams (mg)

Decimal Places:

• Use 4+ decimals for compounding

• Use 2-3 decimals for dosing

• Always round at final step

• 1 kg = 1000 g

• 1 g = 1000 mg

• 1 mg = 1000 mcg

• Base unit: gram (g)

• 1 lb = 16 oz

• 1 oz = 28.35 g

• 1 lb = 453.59 g

• 1 grain = 64.8 mg

• 1 scruple = 20 grains

• 1 drachm = 60 grains

• 1 ounce (apoth) = 480 grains

• 1 pound (apoth) = 5760 grains