To go from micrograms to milligrams , divide the micrograms by a thousand: 1 mcg / 1000 = 0.001 mg Conversely, to go from milligrams to micrograms , multiply the milligrams by a thousand: 1 mg × 1000 = 1000 mcg

Last updated: Jul 31, 2024

mcg to mg Converter

Q: How do I convert mcg to mg?

To convert mcg to mg , follow these steps: Write down the weight/mass in micrograms . Divide the weight/mass in mcg by 1000 . That's it! You've just converted a weight/mass in micrograms into milligrams .

Q: How do I convert mg to mcg?

To convert mg to mcg , follow these steps: Write down the weight/mass in milligrams . Multiply the weight/mass in mg by 1000 . That's it! You've just converted a weight/mass in milligrams into micrograms .

Q: What is the conversion from 100 mcg to mg?

0.1 mg . To convert 100 mcg to mg, you can use the formula below: 100 mcg / 1000 = 0.1 mg The other way round, we have: 0.1 mg × 1000 = 100 mcg

Q: What is the conversion from 125 mcg to mg?

0.125 mg . To convert 125 mcg to mg, you can use the formula below: 125 mcg / 1000 = 0.125 mg The other way round, we have: 0.125 mg × 1000 = 125 mcg

Created by Claudia Herambourg

Claudia Herambourg

Claudia holds a bachelor’s degree in Literature and Mathematics from University College Cork, Ireland. Passionate by both words and numbers, she has never been able to pick a side. To nurture this quest to break the traditional disciplinary boundaries, Claudia obtained a certificate in data science. She believes in combining creative practice and data skills to comprehend and analyze existing stories and develop new narratives. After a long day, she either goes for a run or picks up her paintbrushes and canvas. See full profile

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Steven Wooding

Physicist holding a 1st class degree and a member of the Institute of Physics. Creator of the UK vaccine queue calculator, and featured in many publications, including The Sun, Daily Mail, Express, and Independent. Tenacious in researching answers to questions and has an affection for coding. Hobbies include cycling, walking, and birdwatching. You can find him on Twitter @OmniSteve. See full profile

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Table of contents

How to convert mcg to mg How to use our mcg to mg converter FAQs

Welcome to our mcg to mg converter, an easy-to-use tool for converting from micrograms to milligrams and from milligrams to micrograms. But that's not all! Our mg to mcg converter is also a general weight converter. You can quickly go from kilograms to grams, or even from nanograms to tons, and even more.

In this article, you will find out:

What is mcg to mg; but also
How to convert mcg to mg, and mg to mcg; and
How to use our mcg to mg converter.

There are also several concrete examples to follow, so read on!

How to convert mcg to mg

Converting micrograms into milligrams, or milligrams into micrograms, may look simple on paper, but it's also very easy to get lost in the conversion factors. So let's write them down in black and white.

mcg to mg conversion
1 mcg ⇋ 0.001 mg

mg to mcg conversion
1 mg ⇋ 1000 mcg

Now that we've refreshed your memory on converting between milligrams and micrograms, you can take a look at our other converters, like our mL to grams converter or our mcg to mL converter.

How to use our mcg to mg converter

Let's see how to use our mcg to mg converter. Spoiler: you won't find an easier tool!

Suppose you want to convert 250 mcg to mg.

Enter 250 in the first field, Micrograms (mcg).
That's it! The calculator has automatically converted 250 mcg to mg. Your result appears in the second field, Milligrams (mg): 0.25 mg.
If you want to know your result in other mass units, expand the More conversion options section. A third field appears. You can change the units in this field by clicking on them and see the conversion in kilograms, grams, tons, and many others.

Our tool also works as a mg to mcg converter. Suppose you want to convert 0.1 mg to mcg.

Enter 0.1 in the second field, Milligrams (mg).
And that's it! The result of the conversion from 0.1 mg to mcg appears in the first field, Micrograms (mcg): 100 mcg.
We told you it was easy, didn't we? If you'd like to know more about other conversions, take a look at our kg to liter converter and our grams to calories converter.

FAQs

How do I convert mcg to mg?

To convert mcg to mg, follow these steps:

Write down the weight/mass in micrograms.
Divide the weight/mass in mcg by 1000.
That's it! You've just converted a weight/mass in micrograms into milligrams.

How do I convert mg to mcg?

To convert mg to mcg, follow these steps:

Write down the weight/mass in milligrams.
Multiply the weight/mass in mg by 1000.
That's it! You've just converted a weight/mass in milligrams into micrograms.

What is the conversion from 100 mcg to mg?

0.1 mg. To convert 100 mcg to mg, you can use the formula below:

100 mcg / 1000 = 0.1 mg

The other way round, we have:

0.1 mg × 1000 = 100 mcg

What is the conversion from 125 mcg to mg?

0.125 mg. To convert 125 mcg to mg, you can use the formula below:

125 mcg / 1000 = 0.125 mg

The other way round, we have:

0.125 mg × 1000 = 125 mcg

What is mcg to mg?

To go from micrograms to milligrams, divide the micrograms by a thousand:

1 mcg / 1000 = 0.001 mg

Conversely, to go from milligrams to micrograms, multiply the milligrams by a thousand:

1 mg × 1000 = 1000 mcg