About Do Calculate

Do Calculate (احسب in Arabic) is the largest Arabic website for free online calculators. It offers 3,065 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.

Exactly How Many Calculators?

The site has 3,065 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 and overtime 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).

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).
• 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 the method and formula it uses and how to read your result.
• 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.

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. If you spot a mistake, however small, or have an idea for a new calculator, we would love to hear from you.