Instacalc Help Center

Appearance

Science / Engineering Calculations ​

Instacalc loves science. It supports most imperial and SI units.

Scientific Calculator ​

  • Note: Degrees are default: specify radians directly: sin(2pi rad)

Scientific Units ​

Instacalc works with most SI units, and you can do comparison as seen above.

  • Units can be treated as variables: cm is 1 cm, and you can do 15 * cm
  • Merge base units to compound with to SI: 15 kg m/s^2 to SI => 15 newton
  • Split compound into base units to SIBase: 15 N to SIBase => 15 kg m/s^2
  • Make compound units with space or multiplication: 15 kg m/s^2 or 15 kg * m/s^2
  • See the predefined constants for physics constants (speed of light, gravity, etc.)

Imaginary and Complex Numbers ​

Instacalc has support for complex numbers (a + bi) for regular arithmetic and most math functions (ln, exp, trig functions, abs value, etc.).