InstantCalcs 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.

InstantCalcs compared with The Body Index
Detail	InstantCalcs	The Body Index
What it does	Free online calculators for math, finance, health, pregnancy, and more	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	BMI calculator for health assessment Ovulation and pregnancy tracking calculators Percentage and fraction calculations Loan and mortgage financial calculators Construction calculators for measurements Unit conversion tools FFMI and body composition analysis Instant results with no processing delays	Open source formulas on GitHub
What makes it different	Completely free with no signup or registration required Privacy-focused with local browser processing Accurate calculations based on industry-standard formulas 73 calculators across multiple categories Clean and intuitive user interface	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)	15 +3 (up) since last check	Not checked yet
Trust Flow (Majestic)	1	0
Citation Flow (Majestic)	13	0
Referring domains (Majestic)	1	0

4 details filled in for both companies.