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CBD Dosage Calculator: How Much CBD Should I Take?

The optimal dose of CBD depends on your weight and the potency of the oil you’re using.

Learn how to find the perfect dose using our CBD dosage calculator.

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Everybody’s been talking about CBD oil and its long list of health benefits. You’ve shopped around and found a high-quality CBD oil to start yourself off with and you’re ready to get started.

How much do I take? Can I take too much?

In this article, we’re going to talk about dosing CBD oil. We’ll cover how dosing can vary depending on factors like weight, age, the condition you’re treating, the potency of the oil you’re using, and more.

You’ll learn how to find the best dose for your body, and what to do if you experience side effects.

To make dosing as easy as possible, you can also use our CBD oil dosage calculator — which estimates your optimal dose based on your weight, desired strength, and potency of the CBD oil you’re using.

MEDICALLY REVIEWED BY

Updated on January 08, 2021

Table of Contents
  • CBD Oil Dosage Calculator
  • What’s the Normal Dose of CBD?
    • CBD Dosage For Anxiety
    • CBD Dosage For Pain
    • CBD Dosage For Sleep
    • CBD Dosage For Depression
  • Calculating the Dose of CBD Based on Your Weight (How This Calculator Works)
    • CBD Dosage Chart by Weight & Strength (in mg)
  • What CBD Strength Should I Use?
    • Recommended Strength by Condition
  • Dosing CBD: 4 Steps to Finding the Perfect Dose of CBD Oil
    • Step #1: Find Your Optimal CBD Dose
      • Here’s the General Rule of Thumb for CBD Dosing According to Weight & Strength:
      • How To Calculate Dose From Your Weight
      • Here’s an example of this in practice:
    • Step #2: Determine the Potency of Your CBD Oil
      • Here’s What You Need to Take Into Account:
      • Use This Formula to Calculate Potency:
      • Reference Chart for CBD Oil Potencies:
    • Step #3: Convert the Dose into Drops (Optional)
      • Common CBD Oil Doses By Drop (Assuming the Dropper Provides 30 Drops per mL):
      • How to Find the Number of Drops of CBD Oil You Need Based On Your Target Dose:
      • Quick Reference Chart For Finding The Number of Drops Per Dose For Common CBD Oil Potencies
    • Step #4: Tweak The Dose To Match Your Body
      • Every time you try a new brand of CBD, the dose can change due to factors such as:
  • Pro Tip: Match the Potency of the Oil With Your Estimated Target Dose
  • Top-Rated Best CBD Oils for 2021
  • Key Takeaways: How Much CBD Should I Use?

CBD Oil Dosage Calculator

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What’s the Normal Dose of CBD?

The most common dose of CBD is 20 – 40 mg per dose. Some people take much less (as low as 1 mg), others take much higher (up to 100 mg).

Depending on the strength of the product you’re using, this could be anywhere from a few drops to several milliliters of oil. It could also involve anywhere from 1 – 5 capsules or gummies per dose.

The truth is that the optimal dose of CBD is different for everybody.

It’s common for two people with identical weight to respond very differently to the same dose of CBD. One person may find the ideal dose for them is 30 mg of CBD, while the other responds better to just 10 mg.

The ideal dose of CBD for you depends on a variety of factors, including:

  1. Your size and weight
  2. The severity of the condition you’re treating
  3. Your tolerance to CBD
  4. Your individual body chemistry
  5. The potency of the CBD oil, capsules, gummies, or other CBD products you’re using

The best way to find the right dose for your body is to start with a very low dose (2 mg, for example) and increasing by 2-5 mg per dose until you find what works best for you.

CBD Dosage For Anxiety

The effective dose of CBD oil for anxiety or chronic stress usually falls on the moderate to heavy range of the spectrum.

However, some people with anxiety disorders find they’re especially sensitive to CBD may only need a small dose.

When using CBD oil to manage anxiety levels, it’s best to start with a mild dose first to see how you respond. If you don’t see any improvement, move up to the moderate dosage next. Most people notice improvement with the moderate or heavy dosage according to their weight.

For best results, take CBD oil first thing in the morning, and repeat around lunch time. Many people will take a mild “booster dose” about 30 to 60 minutes before engaging in activities that trigger their anxiety.

CBD Dosage For Pain

The dose of CBD oil for pain can vary significantly. For mild pain, such as low-grade arthritis, mild PMS pain, or low back pain — a mild or moderate dose of CBD oil will usually do the trick.

For more severe pain, nerve pain, or treatment-resistant multiple sclerosis or cancer pain — you’ll likely need to use a heavy dose of CBD oil.

Some people experience the painkilling benefits of CBD oil immediately, others need to take the oil for a few days or weeks before noticing any improvement.

The time it takes to notice improvement depends on the underlying condition that’s causing the pain.

Inflammatory pain, cancer pain, or pain from endometriosis can take a long time — while arthritis pain, digestive pain, muscle pain, and PMS pain usually improve within a few hours of taking CBD oil.

For arthritis or joint pain, you can get faster effects by using a CBD pain cream alongside your CBD oil.

CBD Dosage For Sleep

CBD oil has been shown to improve both the quality and duration of sleep — but studies have shown the effective dose of CBD oil for sleep is higher than other conditions. Aim for the heavy dose of CBD oil if the goal is to improve your sleep.

Low doses of CBD (less than 10 mg) can have a stimulating effect, while higher doses (20 mg or higher) are generally much more sedative. The more CBD oil you use, the stronger the sedative effect.

Certain types of CBD extracts also tend to have a stronger impact on sleep. For example, CBD oils that contain sleep-supportive terpenes such as linalool, bisabolol, lavandin, or myrcene have the strongest sedative action.

You can also find CBD oils that contain melatonin to make the oil even better for promoting sleep.

CBD Dosage For Depression

CBD oil is useful for managing symptoms of many mood disorders — including depression.

Finding the right dose of CBD oil for depression can take some trial and error. The underlying processes that cause depression don’t happen overnight, and they won’t disappear overnight either. It can take several weeks or months of steady CBD oil supplementation — along with other lifestyle modifications — before you can expect any real improvement.

It’s best to start with a mild or moderate dosage of CBD oil for a few weeks before graduating to the heavy dose once you understand how CBD affects your body individually.

Calculating the Dose of CBD Based on Your Weight (How This Calculator Works)

While the dose of CBD is unique for everybody, there is a general rule of thumb that can be used to determine an estimated dose based on your weight and the strength of effects you’re looking for (low, medium, and high strength).

cbd dosage

Our dosage calculator is based on the calculations listed below. These doses are estimates and should not be used to replace professional medical advice regarding dosage.

I recommend you start with the low-strength dose when using CBD for the first time and increase the dose slowly over time. When you find a dose that works, you’ve found the right dose for your body. If you experience side effects, you’ve found your upper limit. Reduce the dose to the last amount that didn’t produce side effects.

Calculating the Dose of CBD By Weight & Strength:
  • Low strength → 1 mg CBD per 10 pounds (2 mg per 10 kg)
  • Medium strength → 3 mg CBD per 10 pounds (7 mg per 10 kg)
  • High strength → 6 mg CBD per 10 pounds (13 mg per 10 kg)

It’s important to note that this measurement is in pure CBD, not CBD oil.

We’ll go over calculating how much CBD oil this dose works out to later on. Once you know how much CBD you should be using, you can find the equivalent amount of CBD oil depending on the potency of the oil you’re using.

CBD Dosage Chart by Weight & Strength (in mg)

The optimal dose of CBD depends on the combination of your weight and desired dosage.

A smaller, 90 lb woman is going to need a much smaller dose than a large 250 lb football player — for example. And someone looking for mild relief from stress or anxiety isn’t going to need a high dose like someone looking to treat persistent pain.

You can use this CBD dosage chart to visualize how the dose of CBD changes according to your body weight and desired strength of effects.

The optimal dose of CBD depends on your weight and the potency of the oil you're using. Learn how to find the perfect dose with our CBD dosage calculator

A guide to CBD dosage

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Contents

  1. What to look for in CBD products
  2. How much CBD oil should I take?

These days CBD can be found nearly anywhere in almost anything. There are CBD lattes at the local café, an ever-growing array of beauty products, and CBD is even stacked on the shelves of pharmacy chains located across the U.S. It’s not hard to find CBD oil and CBD-infused products, but finding the most effective CBD dosage, on the other hand, well, that’s an entirely different story.

CBD is a non-intoxicating cannabinoid from the cannabis plant that offers an extensive number of potential therapeutic benefits, including anti-inflammatory, analgesic, anti-anxiety, and seizure-suppressant properties. Although its popularity had already started simmering, the CBD market shifted into a higher gear once hemp production was legalized with the passage of the 2018 Farm Bill. This measure paved the way for a massive influx of hemp-derived CBD oil and CBD-infused products on the consumer market, but most users are still unaware of how to find the most effective CBD dosage.

Evidence shows that CBD holds promise in treating a wide range of conditions and ailments. Photo by: Gina Coleman/Weedmaps

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Although more research is needed in order to define the most effective CBD dosage for specific ailments and conditions, evidence shows that CBD holds promise in treating a wide range of conditions and ailments, including epilepsy, chronic pain, inflammation, opioid addiction, and anxiety, among others.

Knowing the way that CBD products work and are marketed can improve one’s ability to accurately administer CBD for specific ailments or conditions.

What to look for in CBD products

While sifting through the vast ocean of CBD oils and infusions now available online and in health and wellness sections across the US, it’s important to know what to look for in order to find the best possible products.

What type of CBD product should you consider?

There are a lot of different CBD products on the market, and each requires different considerations when it comes to the optimal CBD dosage. This diverse array of CBD product types includes:

  • CBD oil
  • Topicals, such as creams and lotions
  • Capsules
  • Sublinguals, such as oral sprays and droppers
  • Edibles
  • Vape pens
  • High-CBD flower
  • Isolate
  • Suppositories

Certificate of analysis from third-party testing lab

First and foremost, it’s highly important to find CBD oil or CBD-infused products from a reputable source, preferably one that includes a certificate of analysis from a third-party testing lab. By having third-party product verification, the amount of CBD inside the product, along with other potential ingredients, can be confirmed without solely relying on the manufacturer’s word.

The total amount of CBD and amount per serving size should always be clearly showcased on your product’s label. Photo by: Gina Coleman/Weedmaps

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Since the legalization of hemp-derived products via the 2018 Farm Bill, the Food and Drug Administration (FDA) has continued to grapple with how to regulate CBD oil and CBD-infused products. This lack of oversight has led to products that either contain less CBD than advertised or no CBD at all.

For instance, in a November 2017 study, researchers tested 84 CBD products from 31 companies. Only 30.95% of the samples were accurately labeled with the correct amount of CBD.

Read the product label

Aside from proof of third-party testing, there’s additional information that should be listed on the label of the CBD products. By knowing what to look for on CBD product labels, consumers have a better chance of finding high-quality items. The total amount of CBD and amount per serving size should always be clearly showcased on the label. Look for the following details on CBD product labels to ensure that it comes from a reputable source:

  • Amount of active CBD per serving
  • Supplement Fact Panel, including other ingredients
  • Net weight
  • Manufacturer/Distributor name
  • Suggested Use
  • Full-spectrum, broad-spectrum, or isolate
  • Batch/date code
  • Expiration date

Don’t fall prey to enticing buzzwords such as “organic’ or “all-natural,” as they can be misleading and don’t have a scientific basis. There are also some product labels that claim to contain hemp or hempseed oil, but this is not the same as hemp-derived CBD oil, and frequently contains little to no cannabinoids at all.

Know the CBD-to-THC ratio

It’s also important to know whether the CBD product contains any THC and, if so, what the exact CBD-to-THC ratio is. The way this ratio works is relatively simple. For instance, a CBD oil that claims to offer a 3:1 CBD-to-THC ratio will have around three times more CBD than THC. The higher the amount of CBD, the more the consumer is protected from the undesirable effects of THC, such as anxiety and paranoia.

The CBD-to-THC ratio can vary from product to product, but there are certain ratios that seem to be commonplace among most manufacturers, usually ranging anywhere between 1:1 and 18:1. A product with an 18:1 CBD-to-THC ratio provides the best chance for avoiding any semblance of the high that THC produces. A product with a 1:1 CBD-to-THC ratio is more balanced, better suited for someone who is prepared for the intoxicating effects of THC, even if they are mild. Something in the mid-range, such as a 2:1 or 3:1 CBD-to-THC ratio, will be higher in CBD, but will still slightly maintain the sensory and psychoactive effects of THC. Ultimately, however, a person’s individual level of tolerance to THC’s effects will affect their level of intoxication.

CBD with THC work in tandem to create a more beneficial and therapeutic experience, Photo by: Gina Coleman/Weedmaps

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Finding the most effective CBD dosage will likely require a bit of experimentation, but knowing how different CBD-to-THC ratios work can help narrow down the search. Start with a CBD product that has high levels of CBD and, if necessary, slowly transition to something that contains more THC. There is also a wide range of hemp-derived CBD on the market, which contains less than 0.3% to no THC.

As for why you might want to combine CBD with THC in the first place, research suggests that the two cannabinoids work in tandem to create a more beneficial and therapeutic experience, often referred to as the entourage effect.

One 2006 literature review published in Medical Hypothesis suggests that CBD can improve the therapeutic benefits and reduce the adverse effects of THC. Other research appears to support the view that CBD and THC have a positive synergistic effect when combined. For instance a 2012 study found that cannabis consumers with a higher intake of CBD had better recall memory. There is also evidence suggesting that CBD can reduce anxiety and paranoia, two side effects commonly associated with THC.

Consider the ailment or condition

The optimal CBD dosage will not only depend on the individual, but also their ailment or condition. Depending on the therapeutic needs, different CBD products may prove more beneficial than others.

For instance, to combat arthritis or chronic pain, a CBD-infused topical applied directly at the site of pain may be more effective than a sublingual oil or tincture. In a 2016 study conducted on lab rats, researchers found that CBD had limited oral bioavailability, leading them to surmise that topical CBD may be more effective when it comes to treating inflammation or pain in a specific area, such as arthritis or muscular pain.

How much CBD oil should I take?

While further research and educational tools are required to pinpoint the optimal CBD dosage for each individual, existing studies can help narrow down the best CBD dosages for certain ailments and medical conditions. For instance, Mayo Clinic, the U.S.-based nonprofit academic medical center, released a review that can be used as a starting point for THC and CBD dosage measurements for various ailments, combining scientific research, publications, and traditional and expert opinions. Based on information in the review, it might be helpful to start with a dose of 2.5 – 10mg of CBD to reduce anxiety or 160mg for inflammation.

CBD and weed

Finding the ideal CBD dosage is dependent on several factors, including the individual’s weight, diet, metabolism, other medications, genetics, and medical condition, as well as the formulation and quality of the CBD. Photo by: Gina Coleman/Weedmaps

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CBD and weed

But finding the ideal CBD dosage is dependent on several factors, including the individual’s weight, diet, metabolism, other medications, genetics, and medical condition, as well as the formulation and quality of the CBD. Therefore, it’s not yet possible to develop universal CBD dosage guidelines that work effectively for everyone, but well-educated estimates can still be made using the limited information currently available. Of course, novice users should start with a lower dose and work their way up until the optimal CBD dosage is found.

When administering CBD oil, the corresponding dropper in the bottle can be used to obtain an accurate measurement. The right amount will be subject to the desired CBD dosage and product serving size. For example, one 50-milliliter bottle contains 2,000 milligrams of CBD. Considering a standard dropper typically holds one milliliter of liquid, just divide the milligrams of CBD by the amount of liquid in the bottle. In this case, one full dropper should contain 40 milligrams.

So, to start with a CBD dosage of 20 milligrams, simply fill half of the dropper and administer the oil underneath the tongue. Holding under the tongue is a critical step in tincture consumption because CBD is very poorly absorbed by the gastrointestinal tract (i.e., very little of what is swallowed ends up in the bloodstream). Efforts are underway to develop formulas that increase the oral bioavailability of CBD; these may include consuming it alongside piperine, a molecule found in black pepper, which is commonly used to boost the absorption of turmeric.

Lastly, it’s always worth consulting a physician about using CBD to treat a specific medical condition or ailment. While medical professionals might not yet have clinical expertise regarding CBD, they may still be able to provide guidance on the optimal CBD dosage for each patient.

A guide to CBD dosage Copy article link to clipboard. Link copied to clipboard. Contents What to look for in CBD products How much CBD oil should I take? These days CBD