Health July 13, 2026 · 8 Min Read

Cephalexin For Cats Dosage Calculator – Guide & Formulas

Calculate the correct Cephalexin dose for your cat by weight. Get safe, vet-recommended antibiotic dosage guidelines for feline skin and urinary infections.

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Put these formulas into practice with our instant, step-by-step Cephalexin For Cats Dosage Calculator.

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Calculate the correct Cephalexin dose for your cat by weight. Our free antibiotic dosage calculator provides safe, vet-recommended amounts for feline skin and urinary infections.

Key Takeaway

Use the free Cephalexin For Cats Dosage Calculator to calculate the correct cephalexin dose for your cat by weight. get safe, vet-recommended antibiotic dosage guidelines for feline skin and urinary infections. Get instant results with step-by-step explanations.

How to Use the Cephalexin For Cats Dosage Calculator

  1. Enter your cat's weight in pounds or kilograms.
  2. Select your preferred unit system (Imperial or Metric).
  3. Review the recommended dose range and frequency.
  4. Check safety notes and consult your vet before administering.

The Formula

Cephalexin Dose = Cat's Weight (kg) × 10—25 mg per kg of body weight. Standard feline dose is 10—15 mg/kg given every 8—12 hours (three times daily). Duration typically 5—14 days depending on infection type. Maximum single dose should not exceed 500 mg.

Variable Definitions

  • Weight: Your cat's body weight in pounds or kilograms
  • mg/kg: Milligrams of medication per kilogram of body weight
  • Cephalexin: A first-generation cephalosporin antibiotic used to treat bacterial skin, urinary, and soft tissue infections in cats
  • Dosing Interval: How often the medication is given, typically every 8—12 hours for cats

Calculating Cephalexin Dose for a 10 lb Cat

Find the safe Cephalexin dose for a 10-pound cat with a skin infection.

  1. Step 1: Convert weight: 10 lbs ÷ 2.2 = 4.5 kg.
  2. Step 2: Calculate minimum dose: 4.5 kg × 10 mg/kg = 45 mg.
  3. Step 3: Calculate standard dose: 4.5 kg × 15 mg/kg = 67.5 mg.
  4. Step 4: Calculate maximum dose: 4.5 kg × 25 mg/kg = 112.5 mg.
  5. Step 5: A 10 lb cat can safely receive 45—112.5 mg per dose, typically 67.5 mg every 8—12 hours.

Financial Advisory Notice

This Cephalexin Dosage Calculator provides general guidelines only. It is not a substitute for professional veterinary advice. Always consult your veterinarian before giving any medication to your cat. Dosage may vary based on your cat's health conditions, kidney function, and other medications.

Frequently Asked Questions