Our Mission
Gestational diabetes affects approximately 6–9% of pregnancies in the United States. Managing this condition requires timely access to accurate clinical calculations — from determining gestational age and estimated due dates to calculating individualized caloric needs and insulin dosing protocols. Yet many of these tools remain locked behind expensive software or fragmented across unreliable sources.
GestationalDiabete.com was built to change that. Our free online gestational diabetes calculator brings together five essential clinical tools into a single, easy-to-use dashboard. Every calculation follows the latest NASEM 2023 Dietary Reference Intakes and established ACOG/OB-GYN guidelines, ensuring that both patients and healthcare professionals can trust the results.
What We Offer
Our clinical calculator suite includes:
- Gestational Age & EDD Calculator — Compute gestational age from LMP, conception date, IVF, or ultrasound inputs with precise weeks-and-days output.
- Pre-Pregnancy BMI & Weight Gain Advisor — Assess BMI and track recommended weight gain ranges based on IOM/NASEM guidelines for singleton and twin pregnancies.
- NASEM 2023 DRI Calorie Calculator — Calculate individualized maternal energy requirements based on activity level, trimester, and gestational age.
- Initial Insulin Dose Split Calculator — Determine weight-based total daily dose and split between NPH/rapid-acting insulin regimens.
Evidence-Based Approach
Every calculation in our tool is grounded in peer-reviewed clinical guidelines. We reference the National Academies of Sciences, Engineering, and Medicine (NASEM) 2023 Dietary Reference Intakes for energy requirements, the American College of Obstetricians and Gynecologists (ACOG) practice bulletins for gestational diabetes management, and established insulin dosing protocols used in obstetric endocrinology.
Our medical reference guide is regularly reviewed to reflect current evidence. We believe that accurate, accessible information empowers better health decisions — and that every expectant mother deserves access to the same clinical tools used by healthcare professionals.
Important Disclaimer
While we strive for clinical accuracy, GestationalDiabete.com is designed for educational and informational purposes only. Our calculator outputs do not constitute medical advice, diagnosis, or treatment. Always consult with your OB/GYN, endocrinologist, or qualified healthcare provider before making any changes to your diet, exercise, or insulin regimen.
Get in Touch
We welcome feedback from patients, clinicians, and developers. If you have questions, suggestions, or want to report a clinical error, please visit our Contact Us page.