🧰 Miscellaneous Tools
BMI, alcohol burn calculator, age calculator and other handy utilities
Body mass index calculator in metric or imperial. Free BMI checker with chart.
Open tool →Calculate blood alcohol level and when you reach 0.0‰. Free BAC calculator with graph.
Open tool →Calculate your exact age from any birth date. How old am I today?
Open tool →Test your typing speed in WPM with accuracy tracking.
Open tool →A handful of tools that do not belong anywhere else: body metrics, a drinks calculator, an age converter and a typing speed test.
Mixed bag by design. They exist because they were needed and did not fit an existing category.
Which tool do I want?
| If you… | Use |
|---|---|
| You want BMI from height and weight | BMI Calculator |
| You are estimating units in a drink | Alcohol Burn Calculator |
| You need an age in years, months and days | Age Calculator |
| You want to measure your typing speed | Typing Speed Test |
BMI was never designed to assess an individual
The formula comes from Adolphe Quetelet in the 1830s, who was describing populations and explicitly said it should not be used to judge any one person. It went into individual clinical use much later, largely because it is cheap to compute from two numbers anyone can measure.
Its central limitation is that it cannot distinguish muscle from fat, so athletes are routinely classified overweight while someone sedentary with low muscle mass can sit mid-range with a poor metabolic profile. It also ignores where weight sits, and abdominal fat carries more risk than the same mass elsewhere — which is why waist-to-height ratio predicts outcomes better and takes no longer to measure.
Read as one rough population-level number among several, it is informative. Read as a verdict on a person's health, it is not, and this tool is not medical advice.