Last updated: September 24, 2026
By using SumCalculator.net, you agree to these terms. If you do not agree, please do not use the site.
The service
SumCalculator.net offers a free, browser-based tool for adding lists of numbers and displaying basic statistics. You may use it for lawful personal or business purposes. You are responsible for the numbers you enter and how you use the results.
Accuracy and availability
We aim to make the calculator useful and accurate, but software or input mistakes can affect results. Sums use exact decimal arithmetic; repeating decimal averages are rounded to 10 places. Verify important totals independently, especially for financial, legal, medical, or other consequential uses. We may change, suspend, or discontinue the site at any time.
Acceptable use
Do not interfere with the site, attempt unauthorized access, or use it in a way that violates applicable law or the rights of others.
No professional advice
The calculator provides arithmetic output only. It does not provide accounting, financial, legal, medical, or other professional advice.
Liability
To the extent permitted by applicable law, the site is provided “as is” and without warranties. We are not liable for losses arising from your use of, or inability to use, the site. Nothing in these terms excludes rights or liability that cannot legally be excluded.
Changes
We may revise these terms. The date above indicates the latest revision. Continued use after changes are posted means you accept the updated terms.
Contact
Questions about these terms can be sent to yimin.space.fe@gmail.com.