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Microgram [mcg] to Milligram [mg] Converter

Quick Reference

1 Microgram (mcg) = 0.001 Milligram (mg)

1 Milligram (mg) = 1000 Microgram (mcg)

How to Convert Microgram to Milligram

1 mcg = 0.001 mg
1 mg = 1000 mcg

To convert Microgram to Milligram, divide the value by 1000 (equivalently, multiply by 0.001). To convert Milligram back to Microgram, multiply by 1000.

Example: convert 10 mcg to mg:
10 mcg = 10 x 0.001 = 0.01 mg

↔ Convert Milligram to Microgram

Microgram

Definition: A microgram (mcg or µg) is a unit of mass in the metric system, equal to one millionth (10⁻⁶) of a gram.

History/origin: The microgram is derived from the gram, which was defined during the French Revolution as the mass of one cubic centimeter of water at the temperature of melting ice. The prefix 'micro-' indicates one millionth.

Current use: Micrograms are commonly used to measure very small amounts of substances, such as vitamins, medications, and pollutants. They are frequently used in pharmaceuticals, biochemistry, and environmental science.

Milligram

Definition: A milligram (symbol: mg) is a unit of mass in the metric system. It is defined as one thousandth (1/1000) of a gram.

History/origin: The milligram is derived from the gram, the base unit of mass in the metric system. The metric system originated in France in the late 18th century. The prefix 'milli-' denotes a factor of 1/1000.

Current use: Milligrams are commonly used for measuring small quantities of substances, such as pharmaceutical drugs, vitamins, and food additives. It is also used in scientific research and analysis.

Microgram to Milligram Conversion Table

Microgram [mcg]Milligram [mg]
1 mcg0.001 mg
2 mcg0.002 mg
5 mcg0.005 mg
10 mcg0.01 mg
20 mcg0.02 mg
50 mcg0.05 mg
100 mcg0.1 mg
200 mcg0.2 mg
500 mcg0.5 mg
1000 mcg1 mg

Common Microgram to Milligram conversions

  • 1 mcg = 0.001 mg
  • 2 mcg = 0.002 mg
  • 3 mcg = 0.003 mg
  • 4 mcg = 0.004 mg
  • 5 mcg = 0.005 mg
  • 6 mcg = 0.006 mg
  • 7 mcg = 0.007 mg
  • 8 mcg = 0.008 mg
  • 9 mcg = 0.009 mg
  • 10 mcg = 0.01 mg
  • 12 mcg = 0.012 mg
  • 15 mcg = 0.015 mg
  • 20 mcg = 0.02 mg
  • 25 mcg = 0.025 mg
  • 30 mcg = 0.03 mg
  • 40 mcg = 0.04 mg
  • 50 mcg = 0.05 mg
  • 60 mcg = 0.06 mg
  • 75 mcg = 0.075 mg
  • 100 mcg = 0.1 mg
  • 150 mcg = 0.15 mg
  • 200 mcg = 0.2 mg
  • 250 mcg = 0.25 mg
  • 300 mcg = 0.3 mg
  • 500 mcg = 0.5 mg
  • 750 mcg = 0.75 mg
  • 1,000 mcg = 1 mg

Common pairs of Mass

Microgram [mcg] to Milligram [mg] Converter

What is 1 mcg in mg?
1 Microgram (mcg) equals 0.001 mg, and 1 mg equals 1,000 mcg.
How do I convert Microgram to Milligram?
Divide by 1,000: 10 mcg ÷ 1,000 = 0.01 mg. The converter above does it for any value, with the precision you choose.
What is 100 mcg in mg?
100 mcg = 0.1 mg. Common amounts are listed on this page, each with its own step-by-step page.
Is a Microgram bigger than a Milligram?
No. 1 mcg is only 0.001 mg: it takes 1,000 mcg to make 1 mg.
Microgram to Milligram Converter | UtilLab