HerHormonesCare

Free tools for your hormones.

Calculators and trackers for periods, fertility, PCOS, thyroid, blood sugar and weight. Built by a clinical dietitian.

New calculators open every week. Need an answer today? Send your dates or lab numbers and get them read for you.

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Periods and cycle

Ovulation Calculator

Your ovulation day and most fertile days this cycle.

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Period Calculator

When your next period is due, for the next three cycles.

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Safe Period Calculator

Lower and higher chance days, with honest limits explained.

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Late Period Calculator

How late your period is, and the common reasons why.

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Fertility and pregnancy

Due Date Calculator

Your estimated due date from your last period.

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Pregnancy Week Calculator

How many weeks pregnant you are, and your trimester.

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Conception Date Calculator

The likely days you conceived, from your due date.

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Implantation Calculator

When implantation likely happens and when to test.

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hCG Doubling Time

Compare two beta-hCG results and see the doubling time.

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Pregnancy Weight Gain

Healthy weight gain for each week, based on your BMI.

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PCOS

PCOS Symptom Test

Ten symptom questions and a clear list to take to your doctor.

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Insulin Resistance (HOMA-IR)

Enter fasting glucose and insulin from your lab report.

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PCOS Calorie Calculator

Calories and protein for steady weight loss with PCOS.

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PCOS Plate Builder

Build a balanced desi meal with protein, fibre, smart carbs and good fat.

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Thyroid and blood sugar

TSH Level Checker

Enter your TSH result and see what range it falls in.

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Thyroid Symptom Tracker

Tiredness, cold hands, hair fall and weight change over weeks.

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HbA1c Calculator

Convert HbA1c to average blood sugar, and back.

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Diabetes Risk Test

A quick risk score from age, waist, activity and family history.

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Blood Sugar Log

Record fasting and after-meal readings and spot your highs.

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Weight, food and daily tracking

BMI for Women

BMI with Asian cut-offs plus waist-to-height, for a truer picture.

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Calorie Deficit Calculator

How much to eat to lose weight at a safe pace.

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Protein Calculator

Your daily protein target, with desi food examples.

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Water Intake Calculator

Your daily water target and a tap-to-log glass counter.

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Daily Hormone Check-in

Energy, mood, cravings, sleep, water and movement in two minutes.

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PMS Symptom Tracker

Rate cramps, bloating and mood in the days before your period.

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Got your results? Turn them into a plan.

Send them on WhatsApp and get a personalised starting plan from the dietitian.

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