65 calculators

Calculators

Small, precise tools. Type values and the answer updates immediately. Nothing leaves your device.

Standard, scientific and engineering calculators you can drive from the keyboard, pop out into their own window or install as an app.

Medical

Body surface area, kidney function, arterial pressure, IV drip rate and paediatric doses.

Molar mass, molarity, dilution, pH, the ideal gas law and equation balancing.

Motion and projectiles, Ohm’s law, energy and work, gravitation, waves and resistors.

Age, date gaps, the Hijri calendar and working days.

Loan payments, compound interest, discounts and tax.

Zakat and inheritance shares under Sunni rules.

BMI, calories, body fat, ideal weight and water.

Percentages, fractions, averages, equations and a scientific calculator.

Length, weight, temperature, area, volume and kitchen units.

Trip fuel, electricity bills, random picks and passwords.