Contact
I read every message personally. If something is wrong, tell me — I want to fix it.
Get in touch
I aim to reply within 1–2 business days. Messages sent Friday–Sunday may take until Tuesday.
Bug report
A calculator gave you a wrong result, a broken input, or a layout issue on your device.
Calculator request
You need a calculator that does not exist on the site yet. Describe what it should calculate and I'll consider adding it.
Formula question
You want to know which source a specific formula is based on, or you think a figure is out of date.
General feedback
Anything else — UX suggestions, accessibility issues, or just saying the site helped you.
What to include
- The URL of the calculator page you were using(e.g. https://allfreecalculator.com/bmi-calculator)
- What you expected vs. what you got(e.g. "I entered X and expected Y but got Z")
- Your device and browser(e.g. iPhone 15, Safari 17 — only needed for layout or input bugs)
- For formula questions: the specific value or field you are questioning
You do not need to include all of these for general feedback or calculator requests — they are most useful for bug reports.
Who you're writing to
You are writing directly to Nauman Pathan, the person who built and maintains this site. There is no support team, no ticket system, and no auto-reply bot. When you email, I read it.
This also means I take bug reports seriously — a wrong formula on this site affects every person who uses that calculator. If you spot an error, reporting it is genuinely useful and I will acknowledge it.
Common questions
Are the calculators really free?
Yes. Every calculator on this site is free to use, with no signup, no paywall, and no premium tier. The site is supported by non-intrusive advertising.
How do I know the formulas are accurate?
Each calculator category references a named official source — IRS publications for tax, WHO guidelines for health metrics, BLS data for wage and inflation figures. You can see the full source list on the About page.
Can I embed a calculator on my own site?
Not currently. The calculators are designed for use on AllFreeCalculator.com. If you have a specific need, describe it in an email and I'll see what I can do.
I found a formula error. What happens when I report it?
I verify it against the official source, update the formula if needed, and add a note to the page's last-updated date. I'll reply to confirm what I found.
Do you accept sponsored calculator pages or paid placements?
No. Every calculator on this site was built because someone might find it useful, not because someone paid for it to be there.
Ready to send a message?
Or find me on LinkedIn if email is not your thing.