petcalc vs The Body Index

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

petcalc compared with The Body Index
Detail	petcalc	The Body Index
What it does	Free dog age calculator and veterinary research-based pet tools	Free body-metric calculators with no accounts or ads in results
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Not given	Free
Pricing	Not given	Not given
Key features	Dog age conversion by size (small, medium, large, giant breeds) AKC chart showing human-year equivalents DNA formula comparison (UC San Diego 16 × ln(age) + 31) Life stage identification (puppy, young adult, mature adult, senior, end of life) Dog lifespan by breed tool Puppy weight calculator Dog food calculator Dog calorie calculator Dog pregnancy calculator	Open source formulas on GitHub
What makes it different	Research-based: built on peer-reviewed studies and veterinary guidelines from AAHA and AVMA Independent and transparent with no brand sponsorship or bias Mobile-friendly design that works on phones Multiple calculation methods shown for comparison (AKC chart and DNA formula)	Calculators for metrics beyond BMI that major sites haven't adopted Open source formulas validated against peer-reviewed research papers All code available under MIT license for verification and reuse Free embeddable widgets with attribution for other websites
Community votes	0	0
DR (Domain Rating by Ahrefs)	5 +2 (up) since last check	Not checked yet
Trust Flow (Majestic)	10	0
Citation Flow (Majestic)	19	0
Referring domains (Majestic)	12	0

3 details filled in for both companies.