Convert milligram to kilogram
Enter the value to convert from milligram to kilogram.
How to Convert Milligram to Kilogram
Converting milligram to kilogram is straightforward using our conversion calculator.
Conversion Formula
kg = mg ÷ 1000000Reverse conversion: Convert kilogram to milligram
Comparison: Milligram vs Kilogram
When to Use Each Unit
Milligram: Standard for medication dosing, vitamin content, chemical analysis, and precise small mass measurements.
Kilogram: Universal standard for mass measurement in science, commerce, and daily life worldwide except in the United States.
Common Conversion Values
- 1000 mg = 1 g
- 1 mg = 1000 μg
- 1 mg ≈ 0.000035 oz
- 1 mg ≈ 0.0154 grain
About Milligram
Definition: The milligram (symbol: mg) is one thousandth of a gram, used for measuring very small masses, especially in medicine.
History: Became essential with development of precision medicine and chemistry requiring accurate small dosages.
Current Use: Standard for medication dosing, vitamin content, chemical analysis, and precise small mass measurements.
Examples: Medication: 5-500 mg doses, vitamin C: 60-1000 mg, caffeine: 50-200 mg, salt in food: 100-2000 mg
About Kilogram
Definition: The kilogram (symbol: kg) is the SI base unit of mass, defined by fixing the Planck constant to exactly 6.62607015 × 10⁻³⁴ J⋅s.
History: Originally defined in 1795 as the mass of one liter of water. Redefined in 2019 using fundamental physical constants.
Current Use: Universal standard for mass measurement in science, commerce, and daily life worldwide except in the United States.
Examples: Human weight: 50-100 kg, bag of flour: 1-5 kg, car weight: 1000-2000 kg, laptop: 1-3 kg