9 free tools · Health Tools
Free online
Health tools.
Free health and fitness calculators that run entirely in your browser: check your BMI and weight category, estimate your maintenance calories, and plan from there. No signup — and your health data never leaves your device.
Browse 9 toolsHealth Tools
9 tools · Free to use
Maintenance Calorie Calculator
Highly functional, beautifully designed calorie calculator to determine your daily maintenance calories, BMR, and macro targets for weight loss or gain.
Lifestyle
BMI Calculator
Calculate your Body Mass Index in metric or imperial units, see your weight category, and find your healthy weight range.
Lifestyle
Macro Calculator
Calculate your daily calories, protein, carbs, fat, fiber and water from your body weight — instantly and privately.
Lifestyle
Adult BMI Calculator
Calculate an adult BMI estimate from height and weight using metric or imperial units, directly in your browser.
Lifestyle
BMI Calculator for Women
Estimate BMI for adult women from height and weight, with clear unit choices and screening limitations.
Lifestyle
Protein Calculator
Calculate daily protein grams from body weight and an adjustable grams-per-kilogram factor.
Lifestyle
Carb Calculator
Calculate carbohydrate grams from the calories remaining after your selected protein and fat allocation.
Lifestyle
TDEE Calculator
Estimate total daily energy expenditure from body measurements and a selected activity level.
Lifestyle
BMR Calculator
Estimate basal metabolic rate from the calculator's body-measurement inputs and inspect the result separately from activity needs.
Lifestyle
A quick guide
Choosing the right Health tools
Use these calculators to explore estimates from the measurements you enter. Check the requested units and input values before interpreting a result. Calculated ranges are general reference points; they do not account for every aspect of an individual's health and cannot replace advice from a healthcare professional.
Digital ToolPad brings together 9 free Health tools in one collection. Open a tool, add your input, and review the result on your device. All tool processing happens in your browser, without uploading your data to our servers for processing.
Is my health data private when I use these calculators?
Yes — completely. Your height, weight, and other inputs are processed on your device and never transmitted, stored, or logged. That matters more for health data than for almost anything else you type into a website.
Are these calculators a substitute for medical advice?
No. They use standard published formulas (like WHO BMI categories and the Mifflin-St Jeor equation) and are great for orientation, but they can't account for your individual health context. Talk to a healthcare professional about what the numbers mean for you.
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