The tests
Some of the most useful body checks need nothing more than a tape measure, a camera or a bit of floor space.
- The BMI calculator shows your body mass index on the WHO scale and the healthy weight range for your height.
- The body fat calculator estimates your body fat percentage from neck, waist and, for women, hip measurements.
- The heart rate monitor online reads your pulse when you rest a fingertip on your phone or webcam camera.
- The balance test times how long you can stand on one leg with your eyes open or closed.
- The breath hold test is a safety-first stopwatch for how long you can comfortably hold your breath while sitting.
Safety first
- Do the balance test next to a wall or a sturdy chair you can hold.
- Never hold your breath in or near water, while driving, or if you feel dizzy, and do not breathe fast and deep before a breath hold.
- Skip a test if you have a heart, lung or balance condition, are pregnant or feel unwell, unless your doctor says it is fine.
Know the limits
These are self-checks for curiosity and tracking progress, not a medical fitness assessment. BMI and body fat are estimates, and a camera pulse reading is not a medical device.