Pet Medication Dosage Calculator

Pet Weight:

Unit:

Dosage per kg/lb (mg):

How to Use the Pet Medication Dosage Calculator

A Pet Medication Dosage Calculator is an online tool designed to help pet owners and veterinarians accurately determine the correct medication amount for pets based on weight and medication strength.

This calculator helps ensure pets get the right dose—not too little to be ineffective and not too much to cause harm. It’s especially useful for medications that are dosed per kilogram or pound of the animal’s body weight.

Step-by-Step: How to Use It

Step 1: Enter Your Pet’s Weight

Use the “Pet Weight” field to input your pet’s body weight.
You can enter weight in kilograms (kg) or pounds (lb).

Step 2: Choose the Weight Unit

Select whether you entered the weight in kg or lb.
The calculator will automatically convert pounds to kilograms if needed.

Step 3: Enter the Dosage Rate

Enter the dosage per kg or lb in milligrams (mg).
For example, if your vet prescribes 5 mg per kg, just enter 5.

Step 4: Click “Calculate Dosage”

Press the green “Calculate Dosage” button.
The calculator instantly shows the total required dosage in milligrams (mg).

Example Calculation

Pet weight: 15 lb
Unit: Pounds (lb)
Dosage per kg: 10 mg

Result:

Weight in kg = 15 × 0.453592 = 6.8 kg
Total Dosage = 6.8 × 10 = 68 mg

Important Notes:

Always verify results with your veterinarian.
This calculator is a tool to assist—not replace—professional guidance.
For liquid medications, your vet may also provide dosing in mL based on the mg/mL concentration.

FAQ: Pet Medication Dosage Calculator

Q1: Is this calculator accurate for all pet medications?

A: It’s accurate for weight-based dosage instructions (mg/kg or mg/lb), but always confirm the medication's specific instructions with a vet.

Q2: Can I use this for both cats and dogs?

A: Yes! Just input the correct weight and dosage rate based on your pet species and vet’s prescription.

Q3: What if I don’t know if the dosage is per kg or lb?

A: Most professional guidelines use mg/kg. Double-check with your vet to be sure.

Q4: Does this calculator work for liquid medication in mL?

A: No. This gives results in mg. You’ll need to divide that by your liquid medication’s concentration (e.g., 25 mg/mL) to convert to mL.

Q5: Can I use this on my mobile phone?

A: Absolutely. The calculator is fully responsive and works great on all devices.