About Do Calculate

Do Calculate (احسب in Arabic) is the largest Arabic website for free online calculators. It offers 3,076 calculators in Arabic and English, covering health and fitness, finance and zakat, education and grades, math, physics and chemistry, dates and ages, pregnancy, cooking, unit conversion and more. Our goal is simple: an accurate, easy calculator for every everyday question, with a clear explanation of how the result is calculated and what it means. Most of our calculators are interactive: there is no Calculate button, the result appears and updates instantly as you type, so you see the effect of every change straight away.

Exactly How Many Calculators?

The site has 3,076 calculator pages today. This is not an estimate: we count it automatically from our sitemaps every time the site is updated, the same files we submit to Google and other search engines. Only calculator pages are counted, including the page for each currency pair, unit pair, percentage and stock, and not the home page, category pages, lists or articles.

Calculators Built for Your Country

Alongside our general calculators, we build calculators for the rules and prices of specific countries. On our Arabic site these include Saudi calculators such as the Citizen Account, Nitaqat, salary scale, overtime and Massar points calculators, electricity bill calculators for Saudi Arabia, Egypt, Jordan and Syria, plus gold prices for each country and stocks on the Saudi, Egyptian, Kuwaiti and Qatari markets. We keep adding country-specific calculators to cover as many local systems as we can; you can find them all in our country calculators (in Arabic).

Built From Your Suggestions

Many of our calculators were designed or improved based on feedback and requests from our users: when visitors ask for a new calculator or a feature in an existing one, we work on adding it. Some calculators also include richer content that helps you understand the result at a glance, such as pie charts, bar charts and tables, as in our absence percentage calculator (in Arabic).

Results You Can See at a Glance

We don't just show a number; we draw what it means. Most of our math, health and women's health calculators show a picture built from your own numbers alongside the result. It updates as you type and comes with a short line explaining what you are looking at. For example:

• Shapes drawn to scale: our area calculator draws each shape with your dimensions, marking the base, height, radius or angle, and our cylinder and sphere calculators draw the solid in its true proportions. On our Arabic site, the triangle calculator draws your triangle from any three values and can show its heights, medians, angle bisectors, incircle and circumcircle.
• Percentages and fractions: our percentage calculator shades a 100-square grid where each square is 1%, and compares values before and after an increase or decrease with bars.
• Roots and statistics: our root calculator shows the square root as the side of a square and plots the root curve, and our median calculator highlights the middle value in your sorted data.
• Numbers (in Arabic): a prime factor tree in the factors calculator, a Venn diagram and a multiples chart in the LCM calculator, and box plots in the quartile calculator.
• Health and women's health (in Arabic): a colour-banded scale showing where your result falls in the BMI calculator, and your cycle as a wheel and a calendar in the period calculator.

The First Arabic Calculator Site Powered by AI

Do Calculate is the first Arabic calculator website that lets you calculate simply by asking. Our AI assistant, Hassoub AI, understands questions in plain language, such as "How many days until Ramadan?" or "How much will I save in a year if I put aside 10 a day?", then builds a calculator with your numbers in seconds and points you to the trusted calculators on our site that fit your question.

When does Hassoub use one of our calculators, and when does it build a new one? Hassoub always searches our own calculators first. If one answers your question, it shows it to you (for health questions, first and marked ✅ as a trusted calculator on our site); these are calculators our team wrote and checked. If none fits, or your question needs a calculation with your own numbers that our calculators don't do directly, it builds a new calculator with AI, always labelled "This calculator was generated automatically". These generated calculators are quick and useful, but no one on our team has reviewed them and they can make mistakes, so each one explains how it calculates (and, for health questions, which standard formula it uses) so you can check it. Double-check important results, or use the trusted calculator on our site when there is one. For your safety, Hassoub does not calculate medication doses or anything that requires official medical reference tables. Instead, it refers you to a doctor or pharmacist, or to our expert-reviewed calculators.

How We Keep Our Calculators Accurate

• Ongoing expert review: Sensitive calculators, such as those for health, pregnancy, medication and nutrition, are continually reviewed by doctors, pharmacists and nutritionists, and updated when trusted health bodies publish new guidance.
• Formulas from trusted sources: More than 92% of our calculators use well-known formulas from scientific references, textbooks and trusted organizations such as the World Health Organization, as in our BMI calculator.
• We name our health sources: In our health calculators we make a point of naming the organization behind the formula, classification or recommended limits, so you know where the result comes from. For example, our BMI calculator uses the World Health Organization (WHO) classification, our child BMI calculator uses the growth charts of the US Centers for Disease Control and Prevention (CDC), and our sleep calculator follows CDC sleep recommendations. On our Arabic site, the pregnancy weight gain calculator follows the US Institute of Medicine (IOM) guidelines, the caffeine calculator uses the daily limit recommended by the US Food and Drug Administration (FDA), the daily vitamin needs calculator uses data from the US National Institutes of Health (NIH), and the walking calories calculator cites the UK's National Health Service (NHS). The blood sugar calculator follows the American Diabetes Association (ADA) criteria, the kidney function (GFR) calculator uses the 2021 CKD-EPI equation used by laboratories, and the smoking recovery calculator follows the WHO recovery stages and a study published in the New England Journal of Medicine.
• Transparency when experts disagree: When there is more than one accepted formula, we show the results of all the popular ones so you can compare, as in our Ideal Weight Calculator.
• An explanation for every calculator: Each calculator explains its method and formula, gives a worked example with real numbers, and says when to use it, so you can understand the result and check it yourself.
• Step-by-step working with your numbers: Many of our math, physics and chemistry calculators don't just give the answer; they show every step of the solution using the numbers you entered, as in our quadratic formula calculator and long division calculator (in Arabic), so you can check the result yourself and see how it was reached.
• Solve for any value, with instant results: In our formula calculators you choose what to find and enter the rest, and the result appears as you type, with no Calculate button, along with the formula and your numbers substituted in. For example, our speed calculator finds speed, distance or time, and our financing calculator finds the monthly installment, the amount, the profit rate or the term (both in Arabic).

Results from health calculators are estimates for information only and are not a substitute for advice from your doctor or pharmacist.

Free for Everyone, No Sign-Up

We believe useful knowledge should be free, so all our calculators and services are completely free, require no registration, and work on phones, tablets and computers alike.

Designed for Every Device

Do Calculate adapts to the screen you are using. On a phone, each calculator fits neatly in a single column that is easy to use with one hand. On a tablet such as an iPad, pages are laid out to make good use of the larger screen in both portrait and landscape. On a computer, you get a wider layout with more shown side by side. You can also add Do Calculate to your phone's home screen and open it like an app.

Help Us Improve

We work hard to make sure every calculator works correctly. We regularly review our calculators against up-to-date scientific references and official rules, and fix any error we find straight away. If you spot a mistake, however small, or have an idea for a new calculator, we would love to hear from you at info@do-calculate.com.