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Pet Feeding Calculator

Lifestyle Tools

RER/DER energy, daily grams by kcal

Quick Answer

Pet Feeding Calculator: RER/DER energy, daily grams by kcal. Pet Feeding Calculator uses standard everyday life formulas to compute accurate results instantly.

Species & life stage

kg
kcal/100g
65 g/day
2 meals ≈ 32 g each
RER216 kcal
DER260 kcal
Daily amount65 g
Per meal32 g

Calculation steps

  1. 1RER = 70 × 4.5^0.75 = 216 kcal/day
  2. 2DER = RER × 1.2 (Neutered adult cat) = 260 kcal/day
  3. 3Food = 260 ÷ 400 × 100 = 65 g/day

DER factors (WSAVA)

StageCatDog
Neutered adult×1.2×1.6
Intact adult×1.4×1.8
Kitten/puppy×2.5×2–3
Weight loss×1.0×1.0
Start from this estimate then adjust by body condition: you should feel ribs under a thin fat layer and see a waist from above. Treats count — keep them under 10% of daily calories. Kibble energy varies 320–450 kcal/100g, wet food ~70–120; always read the package. Fresh water at all times.

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How to Use

  1. Enter scenario values: fill real-life numbers into the Pet Feeding Calculator (defaults work for a quick try).
  2. Instant results: everything computes live, no button needed.
  3. Read the advice: results come with practical tips, reference standards and pitfalls.
  4. Compare options: adjust parameters to compare choices side by side.

Key Points

  • Pet Feeding Calculator is a free online everyday life tool — open and use, no sign-up.
  • All calculations run locally in your browser; your data never leaves the device.
  • Key capability: RER/DER energy, daily grams by kcal.
  • Results come with formulas and reference tables so you can verify every number.

Formula & How It Works

Pet Feeding Calculator formula

Pet Feeding Calculator uses standard everyday life formulas to compute accurate results instantly.

FAQ

How do I use the Pet Feeding Calculator?
Open the page and fill in the input fields — results update automatically. RER/DER energy, daily grams by kcal.
Are the results accurate?
Yes. Standard formulas and conversion factors are used and verified.
Is it free? Do I need to sign up?
Completely free. No registration, login or download required.
Does it work on mobile?
Yes. The responsive design works on phones, tablets and desktops.
Is my data saved?
No. Everything runs locally in your browser.

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Source & Updates

Based on common formulas and industry conventions. Last updated: 2025-07

Authoritative sources:

Last updated:

Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.

Maintained and periodically reviewed by the YiJianSuan editorial team — review process in ourEditorial Policy.

Cite this page: YiJianSuan. Pet Feeding Calculator[EB/OL]. https://www.yijiansuan.com/en/c/life/pet-feeding

Results provided by this tool are for reference only and do not constitute professional advice.