Cat MER Calculator

Conditional cat maintenance scenario composing existing Kleiber70mass^0.75reference and explicitly independently veterinarian applicable multiplier. Not measured energy expenditure or individual feeding prescription; growth, body condition, disease, neutering/activity and uncertainty external.

Description

A feline maintenance-energy scenario uses a mass-based resting-energy reference and an applicable multiplier.

A feline maintenance-energy scenario uses a mass-based resting-energy reference and an applicable multiplier.^{[1, 2]}

Clinical state and body condition must be assessed separately before applying the scenario to feeding.

When to use Cat MER Calculator

Use this tool to calculate or review the supplied observations under the stated rules. Establish the animal, measurement protocol, units and independently applicable veterinary prescription or reference.

How to use Cat MER Calculator and understand its results

Establish the animal, measurement protocol, units and independently applicable veterinary prescription or reference.
Enter independentlyMeasuredAnimalMassKg, callerVeterinarianApplicableMaintenanceMultiplier, using the field meanings and rules below, then run the tool.
Read result.conditionalReferenceRerKcalPerDay, result.conditionalCallerMerKcalPerDay. Use the units and subtraction order below to interpret each value; retain negative differences where returned.
Correct any reported input issue and run again. Before using a successful result, check the stated units, signs, reference scope and observation coverage.

Input field	Meaning	Value type	Requirement
independentlyMeasuredAnimalMassKg	Independently measured animal mass kg	number	Required
callerVeterinarianApplicableMaintenanceMultiplier	Caller veterinarian applicable maintenance multiplier	number	Required

Require positive body mass in kilograms and a positive independently applicable maintenance multiplier. The shared Kleiber helper evaluates the existing 70×mass^0.75 resting-energy reference; multiply that by the supplied factor. No multiplier is selected and no feeding recommendation is generated.^[3]

RER_kcal=70×massKg^0.75; conditionalMER_kcal=RER_kcal×callerMultiplier

Use the matching field units and the exact boundary, ordering and reference rules above.

Output field	Meaning	Value type
result	Qualified observation, conditional calculation or reference	object
result.conditionalReferenceRerKcalPerDay	The 70 × massKg^0.75 resting-energy reference in kcal/day.	number
result.conditionalCallerMerKcalPerDay	Resting-energy reference times the caller-applicable maintenance factor, in kcal/day.	number

json

{
  "input": {
    "independentlyMeasuredAnimalMassKg": 16,
    "callerVeterinarianApplicableMaintenanceMultiplier": 1.5
  },
  "output": {
    "result": {
      "conditionalReferenceRerKcalPerDay": 560,
      "conditionalCallerMerKcalPerDay": 840
    }
  }
}

Limitations and assumptions

The patient context, observations and applicability of any reference or prescription must be independently established. This result supplies no diagnosis, default dose, treatment selection or assessment of clinical suitability.

Missing required fields, unknown fields, wrong types and violated rules return input issues. Numeric values and outputs must be finite. Extremely large composite outputs are rejected.

Alternative or Complementary methods

For a related step, use Dog MER Calculator: A maintenance-energy scenario starts from a mass-based resting-energy reference and an applicable multiplier. For a complementary comparison, use Pet Weight Loss Calorie Intake Calculator: A weight-management energy budget can be reconciled with energy from other foods and a verified food energy density.

References

Cat MER Calculator — tool.io
Nutrition and weight management: resting energy reference — American Animal Hospital Association
Calculation or validation: biology/basal-metabolic-rate-kleiber — tool.io

Similar or alternative tools

Dog MER Calculator
A maintenance-energy scenario starts from a mass-based resting-energy reference and an applicable multiplier.
Pet Weight Loss Calorie Intake Calculator
A weight-management energy budget can be reconciled with energy from other foods and a verified food energy density.