☾ Free Cycle Syncing & Fitness Tools
Scientific calculators to identify your cycle phases, estimate period delays, track ovulation windows, map calendars, and generate personalized meal plans.
Cycle Phase Identifier
Identify your current menstrual cycle phase, energy levels, and get custom recommendations for today.
Open Tool →Late Period Calculator
Calculate the exact number of days your period is delayed and find potential causes.
Open Tool →Period Calendar & Predictor
Predict your upcoming period dates for the next 3 months to plan your workouts.
Open Tool →Ovulation & Fertile Window Calculator
Calculate your fertile window and peak ovulation days for reproductive health tracking.
Open Tool →Cycle-Synced Meal Plan & Recipes
Get a customized 1-day nutrition structure tailored to your cycle phase.
Open Tool →Cycle-Synced Workout Generator
Generate a strength, cardio, and stretching routine customized to the active hormonal profile of your phase.
Open Tool →BMI Calculator
Calculate your Body Mass Index and understand how hormonal water retention during the luteal phase affects your reading.
Open Tool →Calorie & TDEE Calculator
Calculate your Basal Metabolic Rate and Total Daily Energy Expenditure using the Mifflin-St Jeor formula.
Open Tool →Macro Calculator (Protein, Carbs, Fat)
Get a custom macronutrient split based on your body stats, activity level, and fitness goal.
Open Tool →Body Fat Calculator
Estimate your body fat percentage using the US Navy method with neck, waist, and hip measurements.
Open Tool →Pregnancy Due Date Calculator
Estimate your due date, current pregnancy week, and trimester using Naegele's rule.
Open Tool →Water Intake Calculator
Calculate your optimal daily water intake based on weight, activity level, and climate conditions.
Open Tool →Sleep Cycle Calculator
Find the ideal bedtime or wake-up time based on 90-minute sleep cycles for optimal rest.
Open Tool →Ideal Weight Calculator
Compare your ideal weight across 4 scientific formulas: Devine, Robinson, Miller, and Hamwi.
Open Tool →One Rep Max (1RM) Calculator
Estimate your one-rep max for any lift using Epley, Brzycki, and Lander formulas with a percentage chart.
Open Tool →Sync to Your Cycle
Get personalized daily workouts, cycle tracking, and custom nutrition plans matching your current phase inside the Moona Web App.
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