Radioactive Decay Calculator

This tool determines the activity remaining in a sample based on the initial activity, isotope, and time elapsed.

Radioactivity Unit Converter

This tool converts between traditional units of radioactivity (curies) and the SI measure (becquerels).

Last Updated: 4/17/2026
Lab Safety Week
2/9/26 - 2/13/26

Celebrate Laboratory Safety Awareness Week with us February 9th to February 13th. Join us for scavenger hunts, escape rooms, and more. Increase your chances to win a prize each time you participate!

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