About Us
CalcTypes is a free calculator website built and maintained by Mohammad Faisal Khan. Our goal is simple: build calculators that are fast, honest about their assumptions, and genuinely useful.
- Independently run — no advertiser or sponsor influences how a calculator is built or what it shows.
- Every calculator is tested with worked examples and edge cases before publishing.
- We clearly disclose assumptions, limitations, and — where used — AI assistance in writing supporting content.
1) Our Mission
Most calculator tools online are either cluttered with ads, hard to trust, or vague about how they actually compute a result. CalcTypes exists to fix that: every calculator on this site aims to be fast, mobile-friendly, transparent about its assumptions, and tested before it’s published.
We don’t just want to give you a number — we want you to understand roughly how that number was calculated, and what its limitations are, so you can use it responsibly.
2) Who’s Behind CalcTypes
CalcTypes is owned and operated by Mohammad Faisal Khan.
[Placeholder — replace with a short bio. Example: “I work in [your field] and started building CalcTypes because I wanted simple, no-nonsense calculators for everyday financial and practical decisions. I built and personally test every calculator on this site.”]
Where a calculator involves specialized knowledge (such as tax rules, medical estimation formulas, or engineering standards), we reference established public formulas and methods rather than personal opinion — see our Methodology page for details.
3) How We Build Our Calculators
Every calculator on CalcTypes is built with the same core principles:
- Fast and mobile-friendly — calculators should work well on any device without lag.
- Transparent about assumptions — where a calculator relies on an assumption (e.g., compounding frequency, rounding rules), we try to state it clearly.
- Tested with examples and edge cases — before publishing, we run each calculator through realistic scenarios as well as edge cases (zero values, very large numbers, minimum/maximum inputs).
- Reviewed content — supporting explanations may be drafted with AI assistance, but are reviewed by a human editor before publishing. See our AI Content & Editorial Disclosure.
4) What We Cover
CalcTypes currently offers calculators across the following categories, with more being added regularly:
- Finance — Income Tax, EMI/Loan, SIP, and Fixed Deposit (FD) calculators
- Health — general health estimation tools, including sugar/blood glucose-related calculators
- Construction — material and estimation calculators
- Operations Research — optimization and decision-support tools
- Islamic — Zakat and related religious calculators
Mathematics, Statistics, and additional categories are planned. See our Disclaimer for how future categories are covered.
5) Editorial Independence
CalcTypes may display advertising (such as Google AdSense) in the future, and may participate in affiliate programs. These relationships never influence how a calculator is designed, what formula it uses, or what result it shows. Calculators are built to be accurate and useful first — monetization is separate from editorial and technical decisions.
See our Advertising Policy and Editorial Policy for more detail.
6) Corrections & Feedback
We actively welcome corrections. If a calculator gives an unexpected result, or you believe an assumption is outdated or incorrect, please tell us. See our Editorial Policy for how we handle correction reports.
7) Contact
Found an error, or want to request a new calculator?
- Contact page: calctypes.com/contact
- Email: support@calctypes.com
You can also read our Editorial Policy and Methodology to understand how we build and verify our calculators.