How accurate are these health calculators?

Our health tools use evidence-based formulas from WHO, NIH, and US Navy standards. However, they provide estimates and should not replace professional medical advice.

Is my health data stored anywhere?

No. All calculations run locally in your browser. We never collect, store, or transmit any personal health information.

Can I use these tools on mobile?

Yes, all health calculators are fully responsive and optimized for mobile devices, tablets, and desktops.

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Pregnancy Due Date Calculator

Quick Answer: The Calcora Pregnancy Due Date Calculator helps you track vital wellness metrics based on evidence-based standards like the WHO classification or U.S. Navy methods. It is a private, instant way to monitor your health goals without signing up for intrusive health apps.

Estimate your due date from your last menstrual period (LMP) using Naegele's rule.

📅 Enter Last Period Date

Last Menstrual Period (LMP)

Average Cycle Length (days)

🤰 Estimated Due Date

Your Due Date

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Current Week

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Trimester

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Days Remaining

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Conception ~

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📖 How it Works & Guide

This tool is designed to be fast, private, and easy to use. All calculations and processing happen directly in your browser.

Input: Enter your data or upload the required file into the designated input area.
Process: Click the primary action button to trigger the instant calculation or conversion.
Result: Review the output and use the copy button to save your results to the clipboard.

Learn more: World Health Organization | National Institutes of Health

Pro Tip: Health metrics like BMI or Body Fat are better used as trends over time rather than single points of data. Consistently track your results under similar conditions (e.g., same time of day) for better insights.

Note: Your data never leaves your device. We prioritize your privacy and security.

💡 About pregnancy due date

Professional-grade pregnancy due date tool designed for accuracy and privacy. Calcora provides expert-built utilities entirely free of charge with zero data collection.

All calculations happen instantly and locally within your browser, ensuring your data remains absolutely private.

❓ Frequently Asked Questions

Is my data stored on your servers?

No. Calcora tools run 100% client-side. No data is uploaded or stored on any external server.

Is this service free?

Yes, all tools on Calcora are completely free to use without any account or subscription.