Contact

Last updated 2026-10-08

Email hello@sortedsums.com. We read every message and usually reply within a few business days. To report a wrong result or suggest a calculator, thefeedback page has ready-made forms.

What to include

• A result looks wrong? Press Share link on the calculator and paste the link into your email (it contains your inputs), then tell us what you expected and where that number comes from. We check every report against the cited source.
• A source link is broken? Tell us which calculator and which link.
• Want a new calculator? Describe what you calculate by hand at work or at home, and if you can, a public reference for the formula.
• Privacy or legal requests. See the privacy policy andterms of use, then write to the same address.

What we can’t help with

We can’t review your specific project, design, tax return or loan. The calculators give general estimates for informational and educational purposes only; for decisions, please consult a qualified professional.