Collatz Conjecture Calculator - Free, Instant, In Your Browser
Enter a positive whole number to see its full Collatz sequence and how many steps it takes to reach 1.
How to use Collatz Conjecture Calculator
- 1Paste your text or data into the input box above.
- 2Collatz Conjecture Calculator runs instantly, right in your browser.
- 3Copy the result or use it directly.
Your file is processed in your browser and is never uploaded.
Frequently Asked Questions
What's the formula?
If the number is even, divide it by 2; if odd, multiply by 3 and add 1. Repeat until reaching 1 - conjectured (and verified for enormous starting values) to always terminate.
Is my data sent to a server?
No - everything runs entirely in your browser with JavaScript. Nothing is uploaded.