Scientific calculator

Explore scientific calculations

Choose degrees or radians before using sin, cos or tan. The inverse functions asin, acos and atan return an angle in the selected unit. For example, sin(30) is 0.5 in degrees, while sin(pi / 6) is 0.5 in radians.

Powers, roots and logarithms

Use ^ for a power, sqrt(144) for a square root, cbrt(27) for a cube root, ln for the natural logarithm and log for base 10. The constants pi and e are available on the keypad. Factorial, written as !, supports whole numbers from 0 through 170. Enter multiplication explicitly, such as 2 * pi.

Powers are evaluated from right to left: 2^3^2 means 2^(3^2). The expression -2^2 gives -4; use (-2)^2 for 4. Percent always divides by 100 in this calculator. Up to 12 significant digits are displayed.

Compare and download

Keep calculations with different expressions or angle units side by side. The four-scenario comparison exports as one page in Excel, Word, PDF or JPG, including the expressions and angle units.

Your calculation history

Press = or Enter to save a completed calculation. History opens your recent calculations; tap one to use it again, delete an individual entry, or clear the list. Up to 50 calculations stay in this browser. AC clears the entry without deleting history. Memory controls are below the number keys. Tap Type if you want to use your phone’s keyboard.