Half-Life Calculator

Calculate radioactive decay and remaining substance.

Half-Life Calculator

N(t) = N0 x (0.5)^(t / t-half)

Tip: Carbon-14 dating uses t1/2 = 5730 years

How to use Half-Life Calculator

1
Navigate to the Half-Life Calculator tool above and enter or upload your input data.
2
Configure any available options or settings to match your needs.
3
Click the action button to process your input. Results appear instantly.
4
Copy or download the result. All processing happens in your browser โ€” no data is sent anywhere.

Frequently Asked Questions

Is the Half-Life Calculator free to use? โ–ผ
Yes, Half-Life Calculator is completely free. No signup, no account, and no payment required. It will always be free.
Does Half-Life Calculator work on mobile? โ–ผ
Yes, this tool is fully responsive and works on all devices โ€” mobile, tablet, and desktop. It runs entirely in your browser.
Is my data safe when using Half-Life Calculator? โ–ผ
Absolutely. All processing happens in your browser. Your data is never sent to any server and is not stored or logged anywhere.
Do I need to install anything? โ–ผ
No installation required. Half-Life Calculator works directly in your browser โ€” just visit the page and start using it instantly.