Pet Weight-Loss Tracker
Weekly target weights from your pet’s current weight down to the breed’s healthy-range goal — a safe pace (1–2%/week for dogs, up to 1% for cats), portions per
Figures are estimates from this calculator’s standard formula — adjust the inputs in the tool below for your exact number.
How the Pet Weight-Loss Tracker Works
The tracker sets the goal weight as the first 10%-step down that lands inside your breed’s healthy adult range, then projects week-by-week weights. Dogs are fed at RER of the target weight × 1.0 and cats at × 0.8 — a cat must never be crash-dieted — and the plan re-derives the deficit as weight falls so the pace stays safe.
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Step 1
Enter the breed and current weight — the breed’s healthy adult range sets the goal
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Step 2
Review the weekly targets: each week lists target weight, kcal per day and grams per day
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Step 3
Weigh weekly and log it — same scale, same time of day
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Step 4
Compare the trend to the target — the logger shows whether actual weight tracks the plan’s weekly marks
Use Cases
Running a vet-advised slimming plan for an overweight dog or cat
Checking whether the current ration is actually producing loss
Coordinating the household around one weigh-in schedule
Preparing monthly progress numbers for the veterinary team
Tips
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Weigh before the morning meal for the most comparable numbers
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Treats count: they come out of the daily kcal, never on top
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A gram scale for food beats measuring cups on a slimming plan
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If weight stalls two weeks running, re-cut portions with your vet — don’t crash-cut
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Record body-condition notes alongside weights; the scale isn’t the only signal
Common Mistakes
Expecting linear loss — healthy plans zigzag week to week
Cutting food sharply to speed results, which risks muscle loss
Dieting a growing pet; juniors should not be put in a deficit
Rewarding progress with extra treats that erase the week’s deficit
FAQs
How fast should a pet lose weight?
How is the goal weight decided?
Why does my pet’s daily food change from week to week?
How should I weigh my pet between vet visits?
Related tools
Pick another tool to continue your calculation.
Pet Food Portion Calculator (RER/MER)
Science-based daily portions (RER/MER) for your dog or cat — exact grams and cups
Pet Treat Budget Calculator
Daily treat calorie budget for your dog or cat — the 10% rule with per-treat maximums in units and grams
Pet Food Transition Planner
A 7- or 10-day pet food switch plan — daily grams of each food at the same calories
Dog Food Amount Calculator per Meal
Calculate daily food amount for your dog.
How much High-protein grain-free dry dog food — all ages should a Chihuahua adult eat for healthy maintenance?
Standard complete-and-balanced feeding — weigh every 2–4 weeks and adjust ±10% to hold condition. Daily grams and per-meal splits for a Chihuahua adult eating High-protein grain-free dry dog food — all ages.
How much Weight-management dry dog food — high-fiber chicken should a Mixed Breed (Large) adult eat for diabetes management?
Same energy, locked schedule — 3 consistent meals a day timed around insulin. Daily grams and per-meal splits for a Mixed Breed (Large) adult eating Weight-management dry dog food — high-fiber chicken.