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RaqamLab
Everything you need in one place, from everyday math to specialist tools.
Arithmetic, percentages, algebra, geometry and advanced math.
View allTaxes, discounts, loans and interest.
View allBody indicators, calories and nutrition, fitness and running, sleep, water, and pregnancy age.
View allAge, date differences, Gregorian and Hijri calendars, time zones, and event planning.
View allLength and distance, weight and mass, area, volume, temperature and pressure, speed, energy, and data.
View allTips, bills, fuel and sleep.
View allAreas, paint, tiles and concrete.
View allAverages, standard deviation and probability.
View allMost used:
Start with the tools people use most.
Find a percentage of any value quickly and accurately.
Open calculatorCalculate your body mass index and healthy weight range for your height.
Open calculatorConvert dates between the Gregorian and Hijri calendars in both directions, with the weekday and a one-day variance note.
Open calculatorCalculate your age in years, months and days, and find your next birthday.
Open calculatorEstimate a due date from the last period, conception date or ultrasound scan, with a clear estimate disclaimer.
Open calculatorCalculate total daily energy expenditure from basal metabolic rate and activity level.
Open calculatorCompare the time in two cities, see the difference in hours and minutes, and view each local time.
Open calculatorSolve ax² + bx + c = 0 with the discriminant, roots and parabola vertex.
Open calculatorRaqamLab
Every detail is designed to be fast, clear and trustworthy.
Instant results as you type, without reloading the page.
Written, tested formulas with a clear explanation of every step.
Original content in both languages, not machine translation.
Most calculations run in your browser, so your data stays with you.
Every calculator is available without sign-up or subscription.
Formula, examples and FAQs on every page.
We are building RaqamLab with you. Tell us which calculator you need and we will add it to the priority list.