Frequently asked questions

FYGIX (fygix.com) is a free website of calculators in English and Arabic. It offers 39 calculators in five categories: financial, health, math, unit conversions and everyday life. Every calculator shows its formula, assumptions, limitations and the official sources it follows.

Yes. Every calculator is free and works without an account, registration or payment.

No. FYGIX at fygix.com is an independent calculator website. It has no connection with FYGIX LIMITED, a company registered in the United Kingdom and since dissolved, or with any other business that has used a similar name.

Financial calculators for loans, mortgages, compound interest, savings goals, VAT, and YouTube and website earnings; health calculators for BMI, calories, body fat and pregnancy due dates; math calculators for percentages, fractions, averages and age; unit conversions for length, weight, temperature, area, volume, speed and data; and everyday calculators for unit prices, splitting a bill and the electricity cost of an appliance. The calculator directory has the full list of 39 calculators.

Each calculator applies a published formula from the sources it cites, such as NIST, the CDC or HMRC, keeps full precision while calculating and rounds only for display. Every formula has a version, a review date and tested reference examples. A result is only as accurate as the values you enter and the assumptions shown on its page.

No. The calculators are informational tools. Before a decision about a loan, taxes, your health or a legal matter, confirm the result with a qualified professional or the responsible authority.

Yes. Every page is available in Arabic and English, and the calculators accept Arabic-Indic digits (٠١٢٣) as well as Western digits (0123).

Money calculators currently show results in US dollars (USD) and Egyptian pounds (EGP). The formulas do not depend on the currency, so the same amounts give the same result in any currency.

Yes. Every page is designed for phones from 320 pixels wide as well as tablets and computers, and it is tested in both languages and with text enlarged to 200%.

No. The values you enter in a calculator are processed only to return the result. They are not written to an account, the session, the page address or the application log. The Privacy page lists what is kept and for how long.

No. An account is optional; today it keeps your display language and your unit preference. Saving calculations is planned for a future release.

Use the official channel on the Contact page. Describe the calculator and the case with representative round numbers, and never send passwords or your personal financial or health details.