Know your numbers.
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Research-backed
Calculators grounded in published science — not self-help clichés or gym-bro averages. Use them to get an honest baseline, then build the streak that moves it.
What's inside.
Pushup Standards Calculator
How many pushups should you do by age? Find your rating against ACSM / CSEP pushup standards by age and sex — instant, no email required.
Open tool →Habit Formation Calculator
How long until your habit is automatic? The real answer isn't 21 days. Enter your streak and see where you stand against the research-backed 66-day median.
Open tool →Honest baselines,
not motivation.
Most fitness tools tell you what you want to hear. These don't. The pushup norms come from the American College of Sports Medicine and the Canadian Standardized Test of Fitness — population-wide samples, not self-selected gym forums.
The habit timeline comes from Lally et al. (UCL, 2010) — the most rigorous peer-reviewed study on automaticity, with a median of 66 days, not the mythical 21.
A number you can trust is more useful than a number that feels good.
— 26 Pushups, field manual