Calc40: Your Reliable Companion for Scientific Calculations.

An online scientific calculator to perform mathematical calculations.

An online scientific calculator to perform mathematical calculations.

Convert to 170+ currencies with ease. Integrated calculator.

Convert to 50+ units of length with ease. Integrated calculator.

Convert to 30+ area (surface) units with ease. Integrated calculator.

Convert to volume units. Support for many units. Brings an integrated calculator.

Convert temperatures between eight (8) quantities. Kelvin celsius, fahrenheit, rankine and more. Integrated calculator.

Convert to energy units. Support for many units. Brings an integrated calculator.

Convert units between the 20 si multiples (including submultiples). Brings an integrated calculator.

Convert square units between the 20 si multiples (including submultiples). Brings an integrated calculator.

Convert cubic units between the 20 si multiples (including submultiples). Brings an integrated calculator.

Convert to 50+ weight and mass units with ease. Integrated calculator.

Convert to density units (density mass). Metric and imperial system supported.

Convert to units of volume output — amount of volume per unit of time. With multiple si supported.

Convert to units of frequency or revolutions per unit of time. Metric and imperial systems supported.

Convert between degrees, radians, gradians, and more. Brings an integrated calculator.

Convert between square, steradian and spat degrees. Brings an integrated calculator.

Convert to units of speed. Support for many units. Brings an integrated calculator.

Convert to units of force. Support for many units. Brings an integrated calculator.

Convert to acceleration units. Support for many units. Brings an integrated calculator.

A tool for converting units of time between seconds, minutes, hours, days, weeks, months, and years.

A tool to convert between different units of power or heat flow rate, such as watts (w), btu/hour (btu/h), and horsepower (hp).

Converts inductance units between henry, millihenry, microhenry, etc.

A tool to convert between different units of pressure, such as pounds per square inch (psi), pascals (pa), and atmospheres (atm).

A tool to convert between different units of capacitance, such as farads (f), microfarads (μf), and picofarads (pf).

The dynamic viscosity converter is a tool that helps convert viscosity values between different units of measurement.

The electric charge converter is a tool that helps convert electric charge values between different units of measurement.

The electric current converter is a tool that helps convert electric current values between different units of measurement.

Converts electric tension (voltage) (emf) between different units, such as volts to millivolts or microvolts.

The electric dipole converter is a tool that helps convert electric dipole moment values between different units of measurement.

Converts electromotive force (emf) between different units, such as volts to millivolts or microvolts.

Converts electrical resistance between different units, such as ohms to kilohms or megohms.

Converts illuminance units between lux, foot-candle, meter-candle, etc.

Converts kinematic viscosity units between stokes, centistokes, square meter/second, etc.

A tool to convert between different units of luminance such as candelas per square meter, nits, and foot-lamberts.

A tool to convert between different units of luminous intensity such as candelas, lumens per steradian, and apostilbs.

A tool to convert between different units of torque such as newton-meters, pound-feet, and dyne-centimeters.