analyticsScience-Backed Calculator

PMS Water Retention Calculator

Estimate likely cyclical water retention in the luteal phase.

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Clinical Accuracy

Grade A

PMS Water Retention Estimator

Estimate how much of your scale-weight fluctuation is cyclical water retention.

Current Cycle Day (1–35)

Day 1 = first day of your period

Weight Change vs Baseline (kg)

Positive = gained weight vs your baseline

Bloating Severity: 1

NoneMildModerateSevere

Breast Tenderness

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3 tools

PMS Severity Calculator

Estimate PMS burden from symptom intensity ratings.

Menstrual Cycle Length Calculator

Estimate average cycle length and identify expected fertile days.

Weight Loss Timeline Calculator

Project how long your target fat loss may take with adaptation adjustments.

biotechScientific Method

Uses cycle day and symptom severity to estimate short-term fluid fluctuation.

Stachenfeld NS. (2014)

Reprod Sci.