Cephalexin Dosage Calculator for Dogs

Calculate the appropriate cephalexin dosage for dogs based on body weight to treat bacterial infections.

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Input Parameters

Enter details for calculation.

Estimated Target Dose

330 mg
Standard Dose Range: 300 - 450 mg
Administer: 1.3 Capsule(s)
Dosing Interval Every 8-12 hours
โš ๏ธ Prescription antibiotic. Vet approval required.
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Expert Tip

Cephalexin is a prescription antibiotic. Always complete the entire course prescribed by your veterinarian, even if symptoms clear up early.

Calculation Methodology & Details

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Formula

Dose Range (mg) = Weight (kg) × (22 to 33 mg)

The recommended dosage of cephalexin for dogs is 10 to 15 mg per pound (22 to 33 mg/kg) administered twice or thrice daily.

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Important Disclaimer

All veterinary dosage guidelines and calculations are for educational purposes only. Always consult a licensed veterinarian before administering any medication or making major changes to your dog's diet.

How to Calculate Cephalexin Dosage: Step-by-Step

Compute target antibiotic amounts using these steps:

1

Determine Weight in Kilograms

Obtain your dog's weight. Convert from lbs to kg by dividing by 2.2 if necessary.

2

Compute Lower and Upper Limits

Multiply the weight (kg) by 22 for the lower limit, and by 33 for the upper limit (mg).

3

Select Target and Volume

Usually, the midpoint is targeted. Divide the target dose by the capsule strength (e.g. 250 mg) to determine the quantity.

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