Health Calculators

Seven quick checks for the body numbers people actually use: weight, calories, water, and the rest. Each one explains what the number means, and none of them judges it. These are estimates for everyday use — for medical decisions, talk to a qualified professional.

• BMI Calculator — body mass index from height and weight, with the healthy range explained.
• Calorie Calculator — daily calories for weight loss, maintenance, or gain, from your stats and activity.
• Body Fat Calculator — body fat percentage from simple tape measurements.
• Water Intake Calculator — how much water you actually need a day, adjusted for activity.
• Pregnancy Due Date Calculator — due date and key dates from your last period.
• Ideal Weight Calculator — healthy weight range for your height, by two methods.
• BMR Calculator — calories your body burns at rest, plus activity-level totals.

BMI, body fat, and ideal weight all look at the same question from different sides, so it is worth running more than one. Calories and BMR pair naturally: BMR is what you burn at rest, and the calorie calculator builds your daily total from it.

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