Loading...
HealthCheck Platform
Free tools for calorie planning, body composition, GLP-1 tracking, Army fitness testing, and day-to-day health decisions.
Start here
Quickly jump into the tools users rely on most.
Browse all 56 calculators across 10 categories including body composition, performance, nutrition, and pregnancy.
Connected tools
Follow step-by-step workflows that connect multiple calculators. Enter your details once and get a complete health picture.
Assess your body, calculate energy needs, and build a deficit plan.
Understand your body shape, fat-free mass, and ideal weight targets.
Establish your cardio fitness metrics: heart rate and VO2 max.
Calculate calories, set macro splits, and plan hydration.
Our promise
Most health calculator sites hide the answer behind sign-up walls, pop-ups, and upsells. Here is what we do differently.
Every calculator uses published equations like Mifflin-St Jeor for BMR, the Navy method for body fat, and WHO references for BMI.
No account required. No data leaves your browser. Your measurements stay on your device, not on our servers.
No paywalls, no premium tiers, no "unlock full results" gates. Ads keep the tools free — your numbers never sit behind one.
The calculation methodology behind every tool is transparent. You can see exactly which formula produced your result.
Go deeper
Evidence-based explainers to help you understand what the numbers mean.
What the numbers actually mean for your health, how different ranges affect disease risk, and which measurement methods are worth your time.
Read article
Energy ExpenditureBreak down each component of your daily energy expenditure and learn how it shapes your nutrition strategy.
Read article
Weight ManagementWhy weight loss is not always linear, why starvation mode is overstated, and how to set expectations that actually hold up.
Read article
It takes less than a minute. No sign-up, no data stored, no paywall — just answers.