Cannabis is a term used to describe both marijuana and hemp. Marijuana is cannabis that is cultivated for the buds and flowers, which can be *consumed via smoking* or edible products.

Hemp is cannabis that is grown for the seeds, fiber, and other by-products. These can be used for oils, foods, clothing, and various other products. The laws regulating hemp are much more relaxed than those for marijuana.

The legal limit of THC in your system depends on your country’s laws. Some places do not have any legal limits for THC in your system while others have *strict limits depending* on the situation. Most countries do not test for CBD in your system unless it was a scenario involving CBD oil or products.

Testing for THC can be done through a blood, oral, or *urine sample depending* on the situation. A lot of times, doing a double test (blood and oral) will prove more conclusive results.

## How many milligrams are in a gram?

Next, let’s talk about how many milligrams are in a gram. A gram is a unit of mass, or weight. One gram is the weight of a paperclip or an apple.

Like with micrograms, * one way* to understand how many mg are in a gram is to imagine it as a pile of sand. How high would the pile of sand be? One gram!

One way to understand how many mg are in a liter is to think about one bottle of water. How much water is in the bottle? One liter!

It can be easy to confuse these two units, so making sure you are using the correct one for the situation you are in is important.

Remember: one milligram is equal to **one thousandth** of a gram, and one liter is equal to **one thousand grams**.

## How many grams are in a milliliter?

A milliliter is a common measurement of liquid. One milliliter is *approximately 1 cubic centimeter*. So how many grams are in a milliliter?

One gram is 1000 mg, so one milliliter is 1000 mg of liquid. One liter is *one thousand milliliters*, so one liter is one million mg of liquid.

To calculate how many grams are in a liter, divide the number of grams by one million. For example, if there were ten grams of substance in a liter, then there would be 10/1,000,000 = 0.**001 grams per milliliter** in the liter.

There are many apps and calculators that can do this calculation for you as well! Just search “milliliter calculator” on your app store and you will find some free ones.

## Understanding the mass spectrum

Once you understand the concept of milligrams, grams becomes easy. One gram is one thousand milligrams. Once you understand that one gram is a thousand of something, then grams are easy to calculate.

For example, if you have one hundred milligrams of something, then you have one gram of that substance! It is that simple.

In math, we call this *concept inverse multiplication*. You take the smaller number and multiply it by one thousand (or any large number) to get the larger number. In this case, you take the smaller amount of mass and multiply it by one thousand to get the larger amount of mass.

However, there are some cases where this does not work. For example, if you have **one million micrograms** of something, then you do not have one million grams of that substance! You have *one million millionths* of a gram, or 1 mg. This is because we cannot divide by **one thousand without rounding** down in most cases.

## What is the difference between mass and weight?

Mass is the amount of matter an object contains. Weight is the force acting on an object caused by gravity. The weight of an **object changes depending** on what planet it is on, as gravity is a universal force.

To determine the mass of an object, you ** would need** to use a device that

*measures pure volume*or magnitude of matter. To determine weight, you would need to use a device that measures how much force is being applied to an object.

Mass is what makes up an object, and weight is what pulls it down toward the planet it is on. This is why it can be difficult to separate the two when doing calculations for chemistry experiments.

In chemistry, it is most important to know how much atoms and molecules are worth. To do this, you must measure their mass rather than their weight.

## What is the formula for converting between grams and milligrams?

To convert between grams and milligrams, you need to know the formula and then apply it. The formula is *1 gram* is 1000 mg.

So if you have 100 grams, then you have 10000 mg. If you have 1 gram, then you have 1000 mg. Very easy!

You can also go the other way around: if you have 1 gram, then you have 1000 mg; if you have 10000 mg, then you have 1 gram. Again, very easy!

When converting between grams and milligrams, make sure to always remember to keep the same number of zeroes when moving down in weight. Do not add or remove zeroes when converting down in weight; keep it consistent.

Converting between grams and milligrams can be tricky at first, but once you get the hang of it, it will be as easy as *one thousand milligrams equals one gram*.

## What is the conversion between grams and milliliters?

A gram is a unit of mass, which is the same as weight. A milliliter is a unit of volume, which is the same as liquid or fluid volume.

To convert grams to milliliters, multiply the gram value by 1000. Then subtract that number from 1 liter. The remaining number is what you will get in ml. For example, if you had 100 grams, you would have 100 x 1000 = 10000 – 1 = 9900 ml.

You can **also convert grams** to **milliliters using mass density**, or how heavy one unit of volume is. First, find out how **heavy one gram** is by weighing it on a scale. Then divide one by 1000 to get the density in terms of *milliliters per liter*. This does not change regardless of the amount on the scale.

## How do I convert between imperial and metric measurements?

Converting between imperial and metric measurements can be tricky. Most people are familiar with how to convert from millimeters to inches, but what about grams to ounces?

To convert from grams to ounces, multiply the number of grams by 1000. Then divide this number by 16. This will give you the number of ounces per gram.

For example, 1 gram = 1 oz., so if a *fruit weighs 1 g*, it **would weigh 1 oz**. Because there are 16 oz. in a lb., then how many lbs. **would one ounce** of that fruit weigh? Simply multiply 1 oz. by 16, and you get 1 lb!

To convert from inches to centimeters, divide the number of inches by 2.5 and then multiply this number by 10. This will give you the number of centimeters. For example, 8 ft = 2m 30 cm.

## Why do I need to know how to convert between imperial and metric measurements?

In the modern world, we live and work in a multinational environment. As technology advances, so does the ability to *communicate across vast distances rapidly*.

It is likely you will at some point need to convert a measurement from imperial to metric or vice versa. You may need to do this while working with technology or even while interacting with others.

Measuring ingredients for recipes is one of the easiest ways to start learning how to convert between imperial and metric measurements. You will learn how many grams are in one teaspoon, how many milliliters are in one ounce, and so on.

Learning these basics will ensure that you do not render a recipe unsuccessful due to incorrect measurements!

#### Exercise: Learn How To Convert Between Imperial And Metric Measurements

There are several easy ways to learn how to convert between imperial and metric measurements. The first way is to visit your local library and search for books on the subject. Another option is to search for books on Amazon or Google Books.

Once you have found some resources, try doing some exercises to test your knowledge. One exercise is finding different sized pies on Pinterest and figuring out how many slices they are per size per type of pie.

Another idea is finding different sizes of shoes and figuring out the approximate length of feet they are based on imperial sizes.

There are also exercises you can do to learn how to convert between weights such as pounds and kilograms.