bitcoincalculator.org is up for sale on Flippa.
![Cheesy](https://bitcointalk.org/Smileys/default/cheesy.gif)
I own the domain, so feel free to reach out to me with any questions you may have. Serious offers only.
On flippa it said the minimum offer you'd accept is $1 - surely that'll be a loss for you.
I'd suggest you to move this to Digital Goods / Auction and start an auction for your domain - you will definitely have better results there.