Microgram to Kilogram Conversion Calculator: Free Online Tool
Convert micrograms to kilograms with our free online weight converter.
Microgram to Kilogram Calculator
How to Use the Calculator:
- Enter the value you want to convert in the 'From' field (Microgram).
- The converted value in Kilogram 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 Microgram to Kilogram
Converting Microgram to Kilogram involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Microgram = 1e-9 kilogramsExample Calculation:
Convert 5 micrograms: 5 × 1e-9 = 5e-9 kilograms
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 Microgram and a Kilogram?
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.
The kilogram is the base unit of mass in the International System of Units (SI). It is defined based on the fixed numerical value of the Planck constant.
Note: The Microgram is part of the metric (SI) system, primarily used globally in science and trade. The Kilogram belongs to the metric (SI) system.
History of the Microgram and Kilogram
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.
Originally defined as the mass of one liter of water. Later, it was represented by the International Prototype of the Kilogram (IPK), a platinum-iridium cylinder. In 2019, the definition was changed to be based on fundamental physical constants.
Common Uses for micrograms and kilograms
Explore the typical applications for both Microgram (metric) and Kilogram (metric) to understand their common contexts.
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.
Common Uses for kilograms
- Global Standard: The primary unit for mass in science (physics, chemistry), engineering calculations, and international trade (e.g., commodity pricing).
- Body Weight: Widely used worldwide (outside the US/UK primarily) for measuring human body weight for health and fitness tracking.
- Food & Groceries: Used for selling and labeling larger quantities of food items like rice, flour, sugar, and some produce in metric countries.
- Shipping & Logistics: Standard unit for calculating weights of packages and freight internationally.
- Everyday Objects: Measuring the mass of common items like furniture, electronics, or luggage.
Frequently Asked Questions
Questions 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.
About Kilogram (kg)
What is the base unit of mass in the SI system?
The kilogram (kg) is the base unit of mass in the International System of Units (SI).
Is the kilogram used worldwide?
Yes, it's the global standard for science, engineering, and international trade, and widely used for everyday measurements in most countries.
How was the kilogram originally defined?
It was initially defined as the mass of one liter of water, later represented by a physical artifact (the IPK), and is now based on the Planck constant.
Conversion Table: Microgram to Kilogram
| Microgram (µg) | Kilogram (kg) |
|---|---|
| 1 | 0 |
| 5 | 0 |
| 10 | 0 |
| 25 | 0 |
| 50 | 0 |
| 100 | 0 |
| 500 | 0 |
| 1,000 | 0 |
All Weight Conversions
Other Units from Weight
- Gram (g)
- Milligram (mg)
- 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)