Browser-onlyLiveMath Calculators
Scientific Calculator
Browser scientific calculator with trig, log, powers, and memory.
Privacy note. Runs in your browser. The numbers you key in never leave this page.
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Trig functions take input in degrees. Logarithms accept positive values only; square root accepts non-negative values only.
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Frequently asked questions
Degrees. The calculator converts your input to radians internally before calling Math.sin / Math.cos / Math.tan, so sin(30) returns 0.5.
It shows "Error" instead of NaN or Infinity. Press C to reset. Reciprocal (1/x) of zero also returns Error.
Yes — one. MC clears it, MR recalls it to the display, M+ adds the current display to it, and M- subtracts. The current memory value is shown above the main display when it is non-zero.
Last updated 2026-06-03.