Track your fertile window and estimated ovulation date based on your last menstrual period. Helps with family planning. Everything runs locally in your browser — nothing is uploaded.
Calculate your waist-to-hip ratio and assess health risk based on your measurements and gender. Everything runs locally in your browser — nothing is uploaded.
Calculate your daily calorie needs using BMR and activity level. Shows maintenance, cutting, and bulking calorie targets for fitness planning. Everything runs locally in your browser — nothing is uploaded.
Calculate your ideal body weight using Devine and Robinson formulas. Provides a healthy weight range for your height and gender. Everything runs locally in your browser — nothing is uploaded.
Calculate your estimated due date from the first day of your last period. Get trimester dates and important pregnancy milestones. Everything runs locally in your browser — nothing is uploaded.
Estimate your income tax with progressive tax brackets. Enter income and deductions to calculate estimated tax liability and effective rate. Everything runs locally in your browser — nothing is uploaded.
Ovulation Tracker lets you track your fertile window and estimated ovulation date based on your last menstrual period. Helps with family planning. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Track your fertile window and estimated ovulation date based on your last menstrual period. Helps with family planning. Everything runs locally in your browser — nothing is uploaded. It runs entirely in your browser — no software installation or data uploads required.
Enter numeric values in the input fields — amounts, rates, or percentages.
Yes. After the initial page load, Ovulation Tracker runs entirely on your device with no internet connection needed. All processing is done locally.
Yes, this tool is completely free with no usage limits, registration, or credit card required.
All processing happens locally in your browser. Your data is never uploaded to any server.
Yes. After the initial page load, the tool runs entirely offline without requiring an internet connection.
No. You can use this tool unlimited times with no quotas or restrictions.
Any modern web browser (Chrome, Firefox, Safari, Edge) on desktop or mobile. No installation needed.
Body Fat Estimator
Estimate body fat percentage using BMI-based formula adjusted for age and gender. Shows fitness range and category. Everything runs locally in your browser — nothing is uploaded.
Daily Calorie Needs
Calculate your daily calorie needs using BMR and activity level. Shows maintenance, cutting, and bulking calorie targets for fitness planning. Everything runs locally in your browser — nothing is uploaded.
Daily Macronutrients
Calculate recommended daily protein, carbs, and fat grams based on calorie intake. Follows standard 30/40/30 macro split. Everything runs locally in your browser — nothing is uploaded.
Sleep Requirements
Get recommended sleep hours based on your age. Follows CDC and National Sleep Foundation guidelines from newborn to senior. Everything runs locally in your browser — nothing is uploaded.
Ideal Body Weight
Calculate your ideal body weight using Devine and Robinson formulas. Provides a healthy weight range for your height and gender. Everything runs locally in your browser — nothing is uploaded.
Steps to Distance
Convert steps walked to distance in km and miles. Also estimates calories burned based on height and step count. Everything runs locally in your browser — nothing is uploaded.