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Learn Now! Know Dosage To Take – CBD Dosage for ADHD

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CBD Tincture Dosage Calculator – CBD Dosage for ADHD

Looking for CBD dosage for ADHD?  This CBD Dosage Calculator provides starting CBD oil dosage for anyone who wants to begin using CBD. Our CBD calculator can determine the starting CBD dose for anyone who has never used CBD.


(See Instructions below)

CBD Tincture Dosage Calculator – Why Do I Need It?

Due to the nature of the CBD industry, lack of regulations and inconsistent labeling, it’s difficult for a customers to know concentration based on the label. Those milligrams, whether they be 250, 500, or 2000 reflect the TOTAL milligrams in the entire bottle. 

To know the strength of a product, it must be converted to milligrams per milliliter (mg/ml) or milligrams per serving. This is why we developed the CBD Oil Dosage Calculator.

CBD Calculator Math

CBD oil products are typically sold in 15-30ml bottles (samples size bottles can be as small as a 5ml bottle).  Each full dropper can hold up one ml of liquid. On average, 1 ml of fluid is about 20 drops. However, this can fluctuate based on dropper size. To determine the milligrams in a single dropper, or mg/ml, divide the total CBD in the bottle by the number of milliliters.


  • A contains 250mg ÷ 30ml = 8.3mg per dropper (8.3 mg/ml)
  • B contains 250mg ÷15ml = 16.7 mg per dropper (16.7 mg/ml)
  • C contains 250mg ÷ 5ml = 50 mg per dropper – (50 mg/ml)
  • A contains 500mg ÷ 30ml = 16.7mg per dropper (16.7mg/ml)
  • B contains 500mg ÷ 15ml = 33.33mg per dropper (33.33 mg/ml)
  • C contains 500mg ÷ 5ml = 100mg per dropper (100mg/ml)

Milligrams AND Milliliter are important

Milligrams and Milliliters are both important when calculating the concentration or strength of a CBD oil product. 

Many leading CBD experts suggest starting low but never suggest what “low” is.  We suggest children start at a 2 mg CBD dose, and adults start at 10-15 mg CBD dose, so that you don’t skip your beneficial dose.  Typically 2mg is equivalent to one single drop (like a single rain drop).  For less concentrated products, you will need more than a single drop to equal 2 mg.  It is important to know the milligrams you are taking if you need to transition to a new product.

We made it simply. The CBD Tincture Calculator below, does all the math for you. Our calculator determines the milligrams (mg) per drop, and number of drops that equal the recommended starting CBD dose.  No worries if you aren’t good with math.  We made it easy!

Starting CBD Oil Dosage for ADHD

Each person’s Endocannabinoid System is unique. Therefore CBD dosage for ADHD recommendations is not based on weight or age and is mostly trial and error. That is why experts agree that the low and slow method is best. Based on user data, adults (looking to reduce symptoms of ADHD like anxiety) on average find a dose of less than 20 mg most beneficial.  While children may need a much higher dose . This is why we suggest beginning low as a starting point, so the beneficial dose is not missed when starting too high based on an age/weight chart. Also, beneficial dose of CBD hemp oil also depends on severity of symptoms, which again makes dosages based body weight and age irrelevant.

We recommend children start at 2 milligrams of CBD sublingually, and 4-5 mg per day if ingesting CBD (gummies or adding to any food or drink) as an initial serving size, however you can always start lower.

When to Increase CBD Dosage for ADHD

CBD Tincture Calculator tips – You can increase the milligrams (mg) whenever you feel comfortable doing so, but look for these side effects from taking too much, too quick.  If you experience these, back off the amount the next day.

NOTE:   CBD is biphasic which means it can have opposite effects at high and low doses.  It is recommended to start low, but if after 1-2 weeks and increased hyperactivity and/or aggression (more stimulated) is apparent and not reducing, then a high dose (25-50 mg) may be necessary for your individual needs.  *Based on feedback in our FB group, Individuals with autism are known to need much higher doses and should start at 25mg*

  • Headaches
  • Increased hyperactivity
  • Moody or irritable
  • aggression or agitated
  • highly emotional
  • stomach aches if taken on full stomach

More CBD Dosage Info

Still shopping for the perfect product that works best for you?  Check out our list recommended brands.

Are you considering Gummies?  Read this article: All Natural Gummies with no artificial ingredients. 

For More Information on CBD, the leading expert is ProjectCBD.

For the most accurate information on CBD oil, join #CBD4ADHD on Facebook and discuss with others finding success with CBD.

Learn about how to research brands, how to start with dosing CBD, using our CBD Dosage Calculator, which brands are reputable, how to administer with Meds and much more.  #CBD4ADHD

Compare CBD Product’s Cannabinoid and Terpene profiles Here.


FDA Disclaimer

These statements have not evaluated by the Food and Drug Administration (FDA). Patients should consult with a physician or medical professional regarding any medical diagnoses.

CBD oil, or any CBD product, is not intended to diagnose, treat, cure or prevent any disease or medical condition. If you are pregnant or nursing, please discuss with your physician before using dietary supplements.


Author: Admin

ADHD-Naturally provides education on CBD and other natural alternatives to ADHD medications. We believe that by prioritizing and maximizing self image and bringing the body to homeostasis, ADHD symptoms can be managed and improved to create overall wellbeing in the person and within the family unit as a whole.

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