Contact
Have a question about the concrete calculator, spotted a mistake, or want to suggest something? We would like to hear from you. The quickest way to reach us is by email at [email protected]. We prefer email, because it lets us check the details and reply with a proper answer.
Reasons to get in touch
These are the messages we receive most often; including the address of the page concerned saves time:
- Corrections. Found an error in a result or a guide? Send us the page address and a short note on what seems wrong.
- Suggestions. If there is something the tool should do but doesn't, describe it and how you would use it.
- Bug reports. When the tool misbehaves, the browser, the device and the inputs you used help us find the cause quickly.
- Copyright. If you believe material here infringes your rights, see our DMCA page for what to include.
- Privacy requests. To access, delete or ask about data, write to us; our Privacy Policy explains your rights.
Send a message
Nothing is sent by the site itself: the button simply opens your email program with the address, subject and text ready, and you decide whether to send it. No mail app on this device? Just email [email protected].
Before you write
- Your address is used for our reply and nothing else.
- Ideas you share may help shape the concrete calculator; sending one creates no obligation for you or for us.
- Please don't ask for professional advice about your own case: engineering, medical, legal and financial questions need a qualified professional.
- Every message is read, and we answer whenever a reply is needed.
- Leave out any sensitive personal details that aren't necessary for your question.
Other pages that may help
Many questions about how the concrete calculator works are answered in the guides on calculator-concrete.org. How we handle data is set out in our Privacy Policy, the rules for using the site are in our Terms of Use, and copyright notices follow the steps on our DMCA page. If you still have a question after that, the form above is the easiest way to ask it.