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Health

Track wellness metrics like BMI, heart rate zones, and hydration.

Most tools process directly in your browser — we’ll call out whenever something needs uploads or extra permissions.

BMI Calculator

Calculate your Body Mass Index and healthy weight range

Visit BMI Calculator

BMR/TDEE Calculator

Calculate basal metabolic rate and daily calorie needs

Visit BMR/TDEE Calculator

Target Heart Rate

Calculate your target heart rate zones for exercise

Visit Target Heart Rate

Pace ↔ Speed Converter

Convert between running pace and speed

Visit Pace ↔ Speed Converter

Pregnancy Due Date

Calculate your pregnancy due date and milestones

Visit Pregnancy Due Date

Daily Water Intake

Calculate recommended daily water intake

Visit Daily Water Intake
offlinewebtools.com

A 300-tool library of calculators, converters, and creative helpers that favour running directly in your browser. No accounts, and most tools avoid uploads by working locally.

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