How Long How Many Days vs TDEE Steps

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

How Long How Many Days compared with TDEE Steps
Detail	How Long How Many Days	TDEE Steps
What it does	Free live countdown timer to any time of day or date	Free Mifflin-St Jeor calculator that shows every step of the equation
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	Live countdown to any time of day Day countdowns for every date Full-screen mode Optional sound alert Timers with pause and restart Light and dark themes	Shows full equation working with step-by-step substitution Multiple activity levels from sedentary (×1.2) to extra active (×1.9) Katch-McArdle calculator using body fat percentage Step-based TDEE estimation Adaptive TDEE calculator from weight changes Embeddable calculator iframe Metric and imperial unit switching Comparison with other equations like Harris-Benedict
What makes it different	Works on device's own clock and time zone Every minute of every day has its own page No installation or account required Automatically counts to next day if time passed	Shows all working so users can verify the math themselves Uses the most accurate equation for healthy adults Multiple calculation methods beyond basic equation Transparent about accuracy limitations and sources Completely free with no tracking or cookies
Community votes	0	0
DR (Domain Rating by Ahrefs)	33 +15 (up) since last check	16 +1 (up) since last check
Trust Flow (Majestic)	10	1
Citation Flow (Majestic)	23	16
Referring domains (Majestic)	8	3

4 details filled in for both companies.