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Paracetamol Dosage Calculator

Paracetamol Dosage Calculator


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The Paracetamol Dosage Calculator enables users to find the perfect dosage of Paracetamol. Paracetamol in excessive quantities can lead to acute liver failure in children.
Paracetamol  is used to treat pain in children, and it is necessary to relieve pain and reduce fever in children. 

Let’s look at the various terms related to the paracetamol dosage and its effects on children.

Paracetamol Dosage by Weight Child:

Paracetamol dosage is variable for children and it  by the age and weight of children. 

The Paracetamol dose can be used as an analgesic, or antipyretic over 3 months of the babies.
The regularly prescribed analgesic and antipyretic oral or rectal dose of paracetamol for children over 3 months are:
10 to 15 mg per 1 Kg of body weight of children more than 3 months, and paracetamol dosage per Kg  for children can’t exceed  60 mg/kg. There are certain risks involved when administering the dosage for babies and children.

Paracetamol for Adults:

Paracetamol dosage for adults is different for adults, but the paracetamol dose for children should be perfectly calibrated. We need to understand who can and can’t take paracetamol. How and when to take the paracetamol  by weight adults have significance otherwise, you may face the side effects of the paracetamol. Women feeding the infants and going through the pregnancy may have to estimate the exact dosage.

Who Can and Can’t Take Paracetamol?

Most people can take the paracetamol dose child per kg without fear, but Paracetamol 250 mg dosage for 4-year-olds is the same goes for adults. There can be a history of allergic reactions in patients and paracetamol can cause these allergic reactions. People having a liver or a kidney problem and excessive dosage can cause irregularity of these major organs. People addicted to alcohol should be careful while measuring the paracetamol pediatric dose, as they can be sensitive to overdose.


Taking 1 or 2 extra tablets by accident is unlikely to be harmful to a  person, as long as you do not take more than 8 tablets in 24 hours.

How to Avoid Paracetamol Overdose?

The paracetamol pediatric dose should be carefully measured when you are taking paracetamol with other kinds of painkillers such as ibuprofen, aspirin, and codeine. These painkillers don’t contain any quantity of paracetamol, so there is no fear of overdosing. It can be a real concern when using paracetamol along with a painkiller having the paracetamol. Do not take paracetamol alongside other medicines that contain paracetamol. If you take 2 different medicines that contain paracetamol, there’s a risk of overdose.

The 3 common errors while administering the paracetamol are:

  • Exceeding recommended doses of paracetamol
  • Dosing more frequently than at 4-6 hours, up to 4 times a day
  • Prolonged dosing (several days)

The paracetamol dosage calculator measures the correct dose of paracetamol based on  the child’s weight to avoid the possibility of overdose caused by inaccurate dosing.

What is the Maximum Dosage of Paracetamol?

The maximum dosage of paracetamol depends upon the patient’s age and weight. The dosage, quantity is maximum for adults and it is reduced for children as their weight is less, so they need a low quantity of paracetamol 125 mg dosage for babies as compared to older persons. The paracetamol 125 mg syrup dosage calculator is specifically designed for children.


Patient Timing            Maximum dosage
Adult One dose 1g/dose
Adult One day 4 g/day
Adult One day (chronic use) 2.5 g/day
Child One dose 20 mg/kg/dose
Child One day 65 mg/kg/day


For adults, it is better to use the paracetamol 250 mg dosage calculator and it is best to use the app for calculating the dosage for the adults. For babies it is better to use the paracetamol 125 mg syrup dosage calculator to avoid overdose

Paracetamol Dosage and Various Potencies:

The paracetamol dosage by weight is different for children and for adults. There are various forms of paracetamol 100mg/ml dosage by weight child and paracetamol 125 mg syrup dosage for baby. The maximum dose of paracetamol per day for a child can’t exceed 250 mg/ml. The pediatric dose of paracetamol is not the same for adults, there are six plus syrups available for paracetamol. The tablets normally contain a potency greater than 500 mg for adults, the paracetamol dosage calculation is changing along with the weight and age of a person.

  • Infant Syrup (100-250 mg/5 ml)
  • Six plus syrup (250 mg/5 ml)
  • Tablets (500 mg)

Paracetamol Dosage and Various Dangers:

The paracetamol 250 mg dosage for baby should be perfectly calibrated according to the weight and age of the growing baby and persons.

There can be following various dangers of the overdose of Paracetamol and its effect on 

  • Paracetamol dosage per kg is dosed in milligrams of body weight, rather than by age, the dosage should be calculated in children using actual body weight, without exceeding the adult dose.
  • Children who are malnourished are more prone to paracetamol toxicity due to their overweight
  • Advise caregivers to record each dose of paracetamol they administer, especially to the children and utilize a syringe to measure dose volume, paracetamol 250 mg dosage for 4-year-old should be properly administered as there is a great risk of over dosage. 

The caregiver can use the paracetamol 250 mg dosage calculator and can avoid the extra dosage.

Pediatric Dosage Chart

The chart below describes infant and adult paracetamol dosage and calculated by the p250 syrup dosage calculator
Acetaminophen Dosage (For Fever & Pain)

Child’s Weight Infant Oral Suspension

160 mg/5 ml


160 mg/5 ml


80 mg


160 mg


325 mg

More Than Amount (mg) Dropper Only Milliliters Tablet Tablet Tablet
7 lbs 40 mg 1.25 ml
14 lbs 80 mg 2.5 ml 2.5 ml
21 lbs 120 mg 3.75 ml 3 ml 1.5 Tabs
28 lbs 160 mg 5 ml 5 ml 2 Tabs 1 Tab
42 lbs 240 mg 7 ml 3 Tabs 1.5 Tabs
56 lbs 325 mg 10 ml 4 Tabs 2 Tabs 1 Tab
84 lbs 480 mg 13 ml -15 ml 5 – 6 Tabs 3 Tabs 1 – 1.5 Tabs
112 lbs 650 mg 20 ml 8 Tabs 4 Tabs 2 Tabs

You can check all the calculations by the paracetamol calculator and to avoid overdose.


Find the paracetamol dosage of a 4 year old child and the child weight is 20 Kg. Being a caregiver, you are prescribed only the infant syrup (120 mg/5ml).


Age = 4 years

Weight =  20 Kg

Dosage = 120 mg/5ml


Maximum Daily  Dose = 12 (ml)

Administer maximum 4 times in 24 hours. Wait at least 4 hours between doses.

Maximum Single Dose of Paracetamol is 300 (mg)

Maximum Daily Dose of Paracetamol is 1200 (mg)

The paracetamol dose for a child per kg can be measured by the dosage calculator pediatric.

Working of Paracetamol Dosage Calculator:

The paracetamol dose calculator can be administered by the following steps


  • Enter the child’s age
  • Enter child’s weight
  • Select the medication type
  • Hit the calculate button to find Paracetamol dosage


The paracetamol dosage calculator have the following result:

  • Maximum single dose
  • Maximum daily dose


How Do I Calculate the Paracetamol Dosage For a Child of 19 kg?

The single dosage for a 19 years old young boy is 285 mg

The Procedure for measuring the pediatric dose calculator is as follows:

  1. Find the weight of the child 
  2. For per Kg, you need 15 mg/Kg of body
  3. Multiply 19 Kg by 15 mg
  4. The single dosage = 19 × 15 mg = 285 mg

What Dosage of Paracetamol Can I Take When Pregnant?

When pregnant, you can take a standard 500 mg of an adult paracetamol dose. You should limit your paracetamol intake to the situations you need it and use the smallest effective amount for as short as possible. The paracetamol dosage calculator can make the task easy to avoid the over dosage.


The paracetamol dosage calculator is simple to find the maximum daily dosage, and distribute your dosage per day. If you are administering the dosage for 24 hours, you can divide the around-the-clock time into 4 times and need to wait for 4 hours between the doses.


From the source of Wikipedia: Hydrocodone/paracetamol, Uses

From the source of Dosing & Uses, Analgesia & Fever