Feline Blood Volume
Enter a cat's body weight to estimate total blood volume using the standard 60 mL/kg veterinary reference value.
Use the Feline Blood Volume
Cat Weight
Standard reference: 60 mL/kg. Accepted range: 55–70 mL/kg.
Results
Total Blood Volume
Weight × constant
Safe Single Draw Limit
10% of TBV
Max Transfusion Volume
20% of TBV (acute loss)
Weight Used
Clinical estimates only. Always apply species-specific guidelines and consult a veterinarian for critical cases.
Quick Reference
| Weight (kg) | TBV — 55 mL/kg | TBV — 60 mL/kg | TBV — 70 mL/kg |
|---|
Summary
This tool estimates total blood volume (TBV) in cats using the standard veterinary reference of 60 mL/kg body weight. Enter the cat's weight in kilograms or pounds to get TBV in milliliters, a safe single-draw limit (10% TBV), and donor collection limits (15–20% TBV). Note that recipient transfusion volumes depend on target PCV deficit formulas.
How it works
- Enter the cat's body weight.
- Select the weight unit (kg or lbs).
- The calculator applies the formula: Total Blood Volume (mL) = Weight (kg) × 60 mL/kg.
- View estimated total blood volume, safe blood draw limit (10% of TBV), and safe donor collection limit (15–20% of TBV).
- Use results to guide blood collection, transfusion planning, or anesthesia fluid protocols.
Use cases
- Determine safe blood draw volumes before diagnostic phlebotomy.
- Plan packed red blood cell or whole blood transfusion volumes.
- Estimate blood loss tolerance during feline surgery.
- Calculate fluid replacement targets during anesthesia.
- Teach veterinary students standard feline hematology reference values.
- Verify manual calculations before clinical procedures.