Keto Dog Calculator

Inputs

Dog weight

Use ideal body weight.

Life stage

Breed size preset

Quickly set a protein floor by size.

Activity level / multiplier

MER factor

Multiplier applied to RER to estimate daily energy.

Goal

Applies an adjustment to daily energy.

Target ketogenic ratio

Fat

Protein+Carb

Typical veterinary keto ranges from 1.5:1 to 4:1.

Protein floor (g/kg)

g/kg

Minimum grams of protein per kg body weight.

Carb cap (%)

% of calories

Optional ceiling on carbohydrate calories.

Use net carbs (subtract fiber)

Fiber allowance g/day

Treat allowance

% of calories

Reserved for treats; feeding plan covers remaining calories.

MCT share of fat

% of fat calories

Omega-6:Omega-3 target

EPA+DHA target mg per 1000 kcal

Electrolyte targets (per 1000 kcal)

Na mg

K mg

Mg mg

Water intake estimate

ml/kg

Meal count per day

Macro energy densities

Fat kcal/g

Protein kcal/g

Carb kcal/g

Food energy density

kcal / 100 g

For portion grams estimation.

Preset name

Results

Metric	Daily	Per meal

Reference data for keto planning

1) Common ketogenic ratios for dogs

Ratio (F : P+C)	Fat % kcal	P+C % kcal	Typical use
2 : 1	≈ 67%	≈ 33%	Moderate therapeutic keto
3 : 1	≈ 75%	≈ 25%	Stronger therapeutic target
4 : 1	≈ 80%	≈ 20%	Strict therapeutic target

2) Activity multipliers (MER factors)

Activity level	Factor	Notes
Resting / low	1.2	Limited walks
Moderate	1.4	Daily walks
Active	1.6	Play/training
Very active / working	1.8–2.0	Working dogs

3) Protein floors by size

Size	Example weight	Protein floor
Toy	< 5 kg	3.5 g/kg
Small	5–10 kg	3.2 g/kg
Medium	10–25 kg	3.0 g/kg
Large	25–40 kg	2.8 g/kg
Giant	> 40 kg	2.6 g/kg

4) Electrolyte & omega targets per 1000 kcal

Nutrient	Target per 1000 kcal	Comment
Sodium (Na)	300–500 mg	Adjust for health status
Potassium (K)	800–1200 mg	Balance with sodium
Magnesium (Mg)	120–200 mg	Support muscular function
EPA + DHA	500–1500 mg	From marine oils

Values are general planning ranges. Always personalize with veterinary guidance.

Example data table

Scenario	Weight	Life stage	Ratio	MER kcal	Protein g	Fat g	Carb g
Toy	3 kg	Adult	2:1	300	9	23	4
Medium	15 kg	Adult	3:1	900	45	75	5
Senior	20 kg	Senior	2:1	950	60	80	6

Ingredient macro database

Search ingredient

Quick add grams for selected

Ingredient (per 100 g)	kcal	Fat g	Protein g	Carb g	Fiber g	Net carb g	Select

Macros are representative typical values. Actual brands vary. Verify labels.

Recipe builder & comparison

Ingredient	Grams	kcal	Fat g	Protein g	Carb g	Fiber g	Net carb g	Remove
Total	0	0	0	0	0	0	0

Recipe ratio (fat : P+C): - vs per-meal target: -

Diff vs per-meal plan → Fat: 0 g, Protein: 0 g, Carbs: 0 g

Formula used

Unit conversion: kg = lb × 0.453592.
RER: Resting Energy Requirement = 70 × (kg^0.75).
MER: Maintenance Energy Requirement = RER × activity factor × goal.
Treats: Feeding-plan calories = MER × (1 − treat%).
Ketogenic ratio: F : (P + C) by calories.
Given target ratio R = F / (P+C) and total calories T:
Fat cal = T × R/(1+R), Protein+Carb cal = T × 1/(1+R).
Apply protein minimum: protein grams ≥ proteinFloor × kg; protein calories = grams × kcal/g.
Limit carbs: carb calories ≤ carbCap% × T; net carbs = carbs − fiber.
MCT suggestion = fat calories × mct% ÷ kcal/g fat.
Electrolytes (Na/K/Mg) targets scale per 1000 kcal selected.
Water/day = kg × water ml/kg. Portion grams/day = T ÷ (food kcal per 100 g / 100).

How to use this calculator

Enter your dog’s ideal weight and choose units.
Select life stage, activity, and a goal to adjust energy.
Set a ketogenic ratio. Common therapeutic targets are 2:1–4:1.
Choose protein floor, optional carb cap, and fiber for net carbs.
Optionally set treats%, MCT share, electrolytes, omega targets, and water.
Review daily and per-meal outputs, then export CSV, PDF, or JSON.

This tool is informational and not a substitute for veterinary advice.

FAQs

What ketogenic ratio should I start with?

Many dogs begin near 2:1 and progress to 3:1 based on tolerance, goals, and veterinary advice. Monitor weight, stool quality, energy, and labs. Adjust gradually while maintaining adequate protein and minimal carbohydrates.

How do I set an appropriate protein amount?

Use grams per kilogram of ideal body weight. Start with the size-based floor here, then increase for active or lean-mass preservation needs. Protein should not drop below the floor to protect muscle and metabolic health.

Are net carbs better than total carbs?

Net carbs subtract fiber, which usually has minimal glycemic impact. For keto planning, limiting digestible carbs is the priority. Track either consistently, but ensure digestible carbohydrate stays within your selected cap.

Can I use MCT oil for deeper ketosis?

Yes, MCTs can support ketone production. Introduce slowly to avoid GI upset. The calculator suggests grams and milliliters by fat share. Distribute across meals and observe tolerance carefully, especially in sensitive dogs.

How often should I adjust the plan?

Reassess every two to four weeks. Update weight, activity, stool, appetite, and body condition. Modify ratio, energy, or protein floor incrementally. Recalculate and export a new plan when meaningful changes occur.

Is this a substitute for veterinary guidance?

No. This tool provides planning estimates only. Medical conditions, medications, and lab values require professional oversight. Consult your veterinarian before starting or changing a therapeutic ketogenic diet for your dog.