Milligram to Microgram Conversion Calculator: Free Online Tool
Convert milligrams to micrograms with our free online weight converter.
Milligram to Microgram Calculator
How to Use the Calculator:
- Enter the value you want to convert in the 'From' field (Milligram).
- The converted value in Microgram will appear automatically in the 'To' field.
- Use the dropdown menus to select different units within the Weight category.
- Click the swap button (⇌) to reverse the conversion direction.
How to Convert Milligram to Microgram
Converting Milligram to Microgram involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Milligram = 1000 microgramsExample Calculation:
Convert 5 milligrams: 5 × 1000 = 5000 micrograms
Disclaimer: For Reference Only
These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.
Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.
What is a Milligram and a Microgram?
The milligram is a unit of mass in the metric system equal to one-thousandth of a gram (1/1000 g) or one-millionth of a kilogram (1/1,000,000 kg). It is commonly used for measuring very small quantities.
A microgram is a unit of mass in the metric system equal to one millionth (1/1,000,000) of a gram, or one thousandth (1/1,000) of a milligram. It is often denoted by the symbol µg.
Note: The Milligram is part of the metric (SI) system, primarily used globally in science and trade. The Microgram belongs to the metric (SI) system.
History of the Milligram and Microgram
Like the gram, the milligram's definition is derived directly from the kilogram. Its use became prevalent with the need for precise measurements in science and medicine as the metric system was adopted globally.
The microgram is derived from the gram, a base unit in early metric systems defined in the late 18th century. The prefix "micro-" indicates a factor of 10⁻⁶.
Common Uses for milligrams and micrograms
Explore the typical applications for both Milligram (metric) and Microgram (metric) to understand their common contexts.
Common Uses for milligrams
- Pharmaceuticals: Measuring the dosage of medications, pills, and active ingredients in drugs.
- Scientific Research: Common unit for mass measurements in chemistry labs, biology, and physics experiments for very small quantities.
- Nutrition & Supplements: Used for labeling the content of vitamins, minerals, and other nutrients in dietary supplements.
- Precision Manufacturing: Weighing very lightweight items like microelectronic components, fine powders, or precious materials.
- Analytical Chemistry: Standard unit for quantifying trace elements and compounds in samples.
Common Uses for micrograms
- Medicine & Pharmaceuticals: Measuring dosages of potent medications and vitamins.
- Chemistry & Biology: Quantifying trace amounts of substances in experiments.
- Environmental Science: Measuring concentrations of pollutants or contaminants.
- Nutrition: Specifying amounts of trace minerals and vitamins in food.
Frequently Asked Questions
Questions About Milligram (mg)
How many milligrams are in a gram?
There are 1,000 milligrams (mg) in 1 gram (g).
Is the milligram used in everyday life?
Its most common everyday use is in medication dosages and supplement information. It's less common for general weighing compared to grams or kilograms.
What does 'milli' mean in milligram?
The prefix 'milli' denotes one-thousandth (1/1000).
About Microgram (µg)
How many micrograms are in a milligram?
There are 1,000 micrograms (µg) in 1 milligram (mg).
How many micrograms are in a gram?
There are 1,000,000 micrograms (µg) in 1 gram (g).
What is the symbol for microgram?
The standard symbol is µg. Sometimes 'mcg' is used, especially in medical contexts, to avoid confusion with 'mg' (milligram) if the µ symbol is unavailable or could be misread.
Conversion Table: Milligram to Microgram
| Milligram (mg) | Microgram (µg) |
|---|---|
| 1 | 1,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 500 | 500,000 |
| 1,000 | 1,000,000 |
All Weight Conversions
Other Units from Weight
- Kilogram (kg)
- Gram (g)
- Pound (lb)
- Ounce (oz)
- Stone (st)
- Ton (metric) (t)
- Ton (US) (ton)
- Ton (UK) (long ton)
- Carat (ct)
- Slug (sl)
- Troy Ounce (oz t)
- Pennyweight (dwt)
- Grain (gr)
- Dram (dr)
- Quintal (q)
- Atomic Mass Unit (u)
- Pavan (India) (pavan)
- Kati (India) (kati)
- Masha (India) (masha)
- Dina (India) (dina)
- Pras (India) (pras)
- Lota (India) (lota)