RepMaths 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.

RepMaths compared with The Body Index
Detail	RepMaths	The Body Index
What it does	Free fitness calculators for strength, training, nutrition and body composition	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	Free	Free
Pricing	Not given	Not given
Key features	One-rep max estimation from weight and reps Bench press, squat, deadlift and overhead press max calculators 5/3/1 training cycle generator TDEE and BMR calculators Macro and protein intake calculators Body fat percentage estimation using US Navy method Barbell plate loading calculator RPE and RIR conversion chart Calorie deficit and weight loss timeline calculator Warm-up set generator	Open source formulas on GitHub
What makes it different	All formulas and sources cited on every page No sign-up required to use calculators Built on established, peer-referenced formulas from fitness and sports nutrition literature Works in both pounds and kilograms Built by a lifter	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)	Not checked yet −1 (down) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	0	0
Citation Flow (Majestic)	13	0
Referring domains (Majestic)	1	0

4 details filled in for both companies.