About HealthWealthTools

HealthWealthTools is a free collection of health and finance calculators built to give you instant, science-backed answers without any signup, tracking or cost.

Every calculation runs entirely in your browser — no data ever leaves your device.

Health tools

Our health calculators use established formulas: Mifflin-St Jeor for BMR, the US Navy method for body fat percentage, and clinical ideal weight formulas.

Finance tools

Our finance calculators use standard financial maths: compound interest, amortization, the 4% retirement withdrawal rule. They support 15 currencies.

Privacy

We do not collect personal data. We use Google AdSense to display ads that help keep the service free. Ads are clearly marked and never interfere with calculators.