Legal
Terms and Conditions
Last updated: October 18, 2026. By using CaffeineLeft.com you agree to these terms.
Using the site
You may use the calculator for personal, non-commercial purposes. Please do not misuse the site, attempt to disrupt it, or copy it in a way that suggests it is yours.
Estimates, not medical advice
Results are rough estimates based on a simplified model and the information you enter. They are not medical advice, a diagnosis, or a recommendation about how much caffeine is right for you. No amount is universally safe or universally disruptive to sleep. Talk to a qualified professional about your own situation.
No warranty
The site is provided "as is" and "as available", without warranties of any kind, including accuracy, completeness or fitness for a particular purpose.
Limitation of liability
To the fullest extent allowed by law, we are not liable for any loss or harm arising from your use of, or reliance on, the site or its results.
Links and content
We may link to third-party sources and are not responsible for their content. The design, text and code of this site belong to its owner unless stated otherwise.
Changes and contact
We may update these terms and will change the date above when we do. Continued use means you accept the updated terms. Questions? Visit our contact page.