Kat Leeftijdscalculator

Ontdek de menselijke leeftijdsequivalent van je kat — met de veterinaire AAFP-formule.

Direct resultaat Werkt in de browser

Hoe kattenleeftijd werkt

Jaar 1 = 15 mensenjaren, jaar 2 = 24. Daarna ≈ 4 mensenjaren per kattenjaar. Bron: International Cat Care / AAFP.

Quick Reference

Cat AgeHuman AgeStage
1 yr15Jong
2 yrs24Jong
5 yrs36Prim
10 yrs56Rijp
15 yrs76Geriatrisch
20 yrs96Geriatrisch

Hoe gebruik je dit?

  1. 1
    Leeftijd invoerenHuidige leeftijd van de kat in hele jaren invoeren.
  2. 2
    Leefstijl kiezenBinnen, gemengd of buiten voor typische levensverwachting.
  3. 3
    Resultaten lezenMensenjaren, AAFP-levensfase en gepersonaliseerde verzorgingstips zien.

Veelgestelde vragen

Waarom veroudert mijn kat zo snel in het eerste jaar?
Katten bereiken de geslachtsrijpheid in het eerste jaar (≈ 15 mensenjaren). Het 2e jaar voegt 9 toe, daarna ~4 per jaar.
Hoe lang leven binnenkatten?
Gemiddeld 12–18 jaar. Buitenkatten 7–12. UK VetCompass 2024: mediaan 12,69 jaar.
Hoe oud werd de oudste kat?
Creme Puff, 38 jaar (Austin TX, 1967–2005) ≈ 168 mensenjaren volgens de AAFP-formule.

How to Convert Cat Years to Human Years

The International Cat Care organisation and the American Association of Feline Practitioners (AAFP) agree on a three-phase conversion: the first cat year equals 15 human years, the second equals 24, and each additional year adds roughly 4 human years. This reflects cats' explosive early development followed by a slower, steadier aging process.

Feline Life Stages (AAFP 2010 Guidelines)

Kitten (0–6 months): rapid physical growth and immune development. Junior (6 months–2 years): social maturation and learning. Prime (3–6 years): peak health. Mature (7–10 years): equivalent to a human in their 40s–50s, when health monitoring becomes important. Senior (11–14 years): regular blood panels and dental care are critical. Geriatric (15+ years): focus on comfort and quality of life.

Indoor vs Outdoor Cats

Lifestyle dramatically affects lifespan. Indoor cats live an average of 12–18 years in a safe, controlled environment. Outdoor cats face hazards including road traffic, predators, toxins, and infectious disease, reducing median lifespan to 7–12 years. Even part-time outdoor access carries risk.

Famous Long-Lived Cats

Creme Puff (38 years, Austin TX) is the longest-lived cat on record. At 38 cat years, the AAFP formula gives a human equivalent of 168 — extraordinary even by human standards. Her diet reportedly included bacon, eggs, and coffee, though veterinarians attribute her longevity to genetics and attentive care rather than diet.

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