LD50 Calculator

Estimate the median lethal dose (LD50) of chemicals efficiently with our free online calculator designed for toxicologists and researchers.

LD50 Calculator IconA modern, flat design SVG representing toxicity and risk assessment with a flask, a dose slider, and a risk symbol

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About This Tool

The LD50 Calculator is a specialized online tool that helps toxicologists, researchers, and health professionals estimate the median lethal dose (LD50) of various substances based on experimental data. By inputting data such as the dose administered, mortality counts, and sample size, users receive immediate, accurate estimates crucial for chemical safety evaluation.
This tool simplifies complex calculations, supports multiple units and parameters, and offers clear output summaries, including confidence intervals when applicable. It is ideal for laboratories, regulatory agencies, and academic institutions conducting toxicity testing or safety evaluations.
Designed with a clean, user-friendly interface, the LD50 Calculator ensures quick data entry and instant results. Its validation routines prevent common input errors, maintaining the integrity of the calculation. Optional features like calculation history, data export, and multi-parameter input enhance usability for ongoing research and compliance reporting.
By providing reliable, scientific-based estimates, this tool empowers professionals to make informed decisions about chemical hazards and safety protocols efficiently.

How to Use

1. Enter the dose in milligrams per kilogram (mg/kg).
2. Input the number of subjects tested.
3. Record the number of subjects that experienced mortality.
4. Click the 'Calculate' button.
5. View the estimated LD50 value and relevant statistics displayed below.

FAQs/Additional Resources

Find Quick Answers

What is LD50 and why is it important?

Can I use this calculator for different species?

What data do I need to input?

Is this tool suitable for regulatory reporting?

What if I get an error message?

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CEO of Company

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John Doe

John Doe

CEO of Company

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John Doe

John Doe

CEO of Company

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John Doe

John Doe

CEO of Company

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John Doe

John Doe

CEO of Company

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

John Doe

John Doe

CEO of Company

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

John Doe

John Doe

CEO of Company

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