OneRepMax vs KitQuarter

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

OneRepMax compared with KitQuarter
Detail	OneRepMax	KitQuarter
What it does	Free one rep max calculator with seven formulas and percentage charts	Free online calculators with transparent formulas and instant answers
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	Seven 1RM formulas (Epley, Brzycki, Lombardi, Lander, Mayhew, O'Conner, Wathen) Average of all formulas as recommended result Percentage chart from 100% to 50% of 1RM Rep-max table for 1RM through 12RM Support for kilograms and pounds Exercise-specific formula defaults RPE adjustment for reps in reserve Multiple exercise categories (chest, back, legs, shoulders, arms, Olympic) Browser-based history with no account Warm-up sets calculator and rep-max table	Shows exact formulas with worked examples for every calculation No sign-up or account required Calculations run entirely in browser with no data upload Input validation with clear error messages Covered by automated unit tests for accuracy
What makes it different	Uses seven published formulas instead of one, showing average and range for transparency No account, sign-up, or data storage required Covers dozens of exercises with exercise-specific guidance and lift variations Warns about formula accuracy limits and when estimates are unreliable Includes linked tools for related calculations (DOTS, Wilks, training max, FFMI, VO2)	All data stays private in your browser
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	2 no change since last check
Trust Flow (Majestic)	0	0
Citation Flow (Majestic)	0	10
Referring domains (Majestic)	0	2

4 details filled in for both companies.

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