Cat Food Calculator
Find the right amount to feed for any life stage
catrepairwoman.com
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@catrepairwoman
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Step 1
Tell me about your cat
INPUT
Name
Current Weight
lbs
kg
Life Stage
-- Select --
Neutered Adult
Intact Adult
Growing Kitten
Pregnant
Activity Level
-- Select --
Inactive/Obese Prone
Active
Step 2
Body Condition Score (BCS)
INPUT
Enter
Your cat
's BCS
1 • Emaciated
2 • Very Thin
3 • Thin
4 • Underweight
5 • Ideal
6 • Slightly Overweight
7 • Overweight
8 • Obese
9 • Severely Obese
How to score BCS:
petobesityprevention.org/catbcs
Step 3
🧮 Daily Calorie Needs
MATH
Show detailed calculation and factor breakdown
Formula used:
RER = 70 × (weight in kg^0.75)
MER = RER × Life Stage Factor
RER: Resting Energy Requirement • MER: Maintenance Energy Requirement
Show factor reference table
Nutritional assessment
Factor
Neutered adult
1.2
Intact adult
1.4
Inactive/obese prone
1.0
Weight loss (High BCS)
0.8
Pregnant
2.0
Growing kitten
2.5
Step 4
Calories Listed on Cat Food Label(s)
INPUT
Does
your cat
eat wet, dry, or both?
-- Select --
Both Wet & Dry
Wet Only
Dry Only
Enter the calories (kcal) per unit of measure (can, cup, etc) listed on the food labels.
Note: calories and kcal are interchangeable terms.
Wet Food
kcal per
can
pouch
Dry Food
kcal per
cup
kg
Step 5
Meal Planning
INPUT
TIP:
Prioritize wet food as it helps cats feel full and usually has fewer calories per volume.
Wet Food (change amounts if needed)
Units
Dry Food Amount
Units
Dry Food
Meal Plan Calories
Calorie Target (MER)
I have reviewed this plan with my veterinarian. Show the results.
Show summary for this plan anyway.
Cat Repairwoman
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youtube.com/@catrepairwoman
Step 6
Summary and Feeding Plan:
RESULT
Enter values above to see the plan.
❗️ Never reduce food by more than 20% per month. This is a starting point and may need to be adjusted to meet individual metabolism.
👩🏻⚕️ Always follow your veterinarian’s guidance.
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