Contact

Get in touch

The fastest way to reach us is e-mail at hello@calc.acharid.com. We read every message and use them to prioritize fixes and new tools, even when we cannot reply to each one individually.

What to include

• Calculation issues: the calculator, the exact inputs you used, the result you saw, and the result you expected — with the source of the expected figure if possible.
• New calculator suggestions: what you were trying to compute and in which language you searched. Suggestions that include the formula or the real-world rule behind them move fastest.
• Language feedback: anything awkward in the Arabic or English wording — natural phrasing matters as much as correct math.

A note on scope

We can answer questions about how the calculators work and what their assumptions are. We cannot provide financial, medical, tax, or legal advice: the tools are calculations, not professional opinions, and the terms of use spell out that distinction in full.