Scientific Calculator

About This Tool

The Scientific Calculator is a full-featured online calculator that handles both basic arithmetic and advanced mathematical functions. It is designed for students, engineers, and anyone who needs quick access to scientific calculations without downloading software or finding a physical calculator. All calculations happen instantly in your browser with no data sent to any server.

Basic Operations

The calculator supports addition, subtraction, multiplication, and division with standard order of operations. Use parentheses to group expressions. The percent button converts the current number to its decimal equivalent (dividing by 100), and the plus/minus button toggles the sign of the current value. The C button clears all input and resets the calculator.

Trigonometric Functions

The sin, cos, and tan buttons calculate the sine, cosine, and tangent of the displayed value. Toggle between degree and radian mode using the DEG/RAD buttons at the top. In degree mode, entering 90 and pressing sin gives 1. In radian mode, you would enter 1.5708 (approximately pi/2) for the same result. Most students work in degrees, while advanced math and physics courses often use radians.

Logarithmic and Exponential Functions

The log button calculates the base-10 (common) logarithm, while ln calculates the natural logarithm (base e). The e^x button computes the exponential function, x^2 squares the value, and x^n raises it to any power. The square root function extracts the positive root. These functions are essential for algebra, calculus, chemistry, and physics calculations.

Memory Functions

The memory system lets you store and recall values during complex multi-step calculations. MC clears memory, MR recalls the stored value, M+ adds the current display to memory, and M- subtracts it. The current memory value is shown below the display when it is not zero. Memory persists until you clear it or refresh the page.