What is the Prednisone for Dogs Dosage Calculator?
Prednisone is a corticosteroid commonly prescribed for dogs to reduce inflammation, suppress an overactive immune system, and treat allergies, arthritis, autoimmune disease and certain cancers. The correct dose depends mainly on your dog's body weight and the reason for treatment. This calculator converts your dog's weight to kilograms and multiplies it by the standard mg/kg rate to estimate a daily dose range. It is an educational tool — your veterinarian sets the final dose, frequency and tapering plan.
How to use it
Enter your dog's weight, choose pounds or kilograms, and select the treatment purpose. Anti-inflammatory dosing uses 0.5–1 mg/kg per day, while immunosuppressive dosing uses 2–4 mg/kg per day. The calculator shows a low-to-high range plus a convenient midpoint figure.
The formula explained
The core equation is simply
$$\text{Dose} = \text{Weight (kg)} \times \text{Rate (mg/kg)}$$Pounds are first converted to kilograms (\(1\ \text{lb} = 0.45359237\ \text{kg}\)). Each purpose has a low and high rate, so the tool produces a dose range. The midpoint is the average of the low and high doses, giving a typical starting estimate.
Worked example
A 20 kg dog needing anti-inflammatory treatment: low = \(20 \times 0.5 = 10\) mg/day, high = \(20 \times 1 = 20\) mg/day, midpoint = 15 mg/day. If the same dog needed immunosuppressive dosing: \(20 \times 2 = 40\) mg/day to \(20 \times 4 = 80\) mg/day.
FAQ
Can I give prednisone to my dog without a vet? No. Dosing, duration and tapering must be supervised by a veterinarian; stopping abruptly can be dangerous.
How often is it given? The daily total may be given once or split into two doses, depending on the condition and your vet's instructions.
Are there side effects? Increased thirst, urination, appetite and panting are common. Report any severe or unusual signs to your vet.
