Toolkit

Health & Fitness Toolkit

Health isn't a single number — but a few simple checks can tell you whether to dig deeper. This toolkit groups the body composition and energy calculators that actually inform real decisions.

Tools in this kit

BMI Calculator

Check your Body Mass Index and the healthy weight range for your height.

Health

BMR & Calorie Calculator

Find your Basal Metabolic Rate and daily calories for maintenance, loss or gain.

Health

Calorie & Macro Calculator

Find your daily calorie target and protein/carbs/fat split for any goal — fat loss, maintain, lean gain.

Health

Body Fat Percentage Calculator

Estimate body fat % using the US Navy circumference method — quick, no equipment.

Health

Age Calculator

Calculate exact age in years, months and days — plus your next birthday countdown.

Lifestyle

Worth reading

2 min read

What BMI actually means — and what it doesn't

BMI is a useful screening number, not a verdict. Here's what it can and cannot tell you about your health.

Quick tips

1BMI is a screening number, not a diagnosis — pair it with body fat %.
2Eat for your TDEE, not someone else's plan on the internet.
3Sleep, stress, and movement matter more than any single metric.
4Recheck markers every 3–6 months — trends matter more than single readings.