Scientific Calculator

Free online scientific calculator with advanced math functions. Includes basic arithmetic, trigonometric functions (sin, cos, tan), logarithms (log, ln), square roots, powers, factorials, and constants (π, e). Features calculation history, memory functions, and keyboard support.

Keyboard: type numbers and operators directly. Enter = evaluate, Esc = clear, Backspace = delete.

Functions Reference

sin, cos, tanTrigonometric (respects angle mode)

logBase-10 logarithm

lnNatural logarithm

√Square root

x^yPower / exponent

n!Factorial (integers only)

πPi (3.14159...)

eEuler's number (2.71828...)

How to Use Scientific Calculator

1Click buttons or use your keyboard to enter calculations.
2Use scientific functions (sin, cos, log, etc.) for advanced math.
3Toggle between Degrees and Radians mode.
4View calculation history and use memory functions (M+, MR, MC).

Frequently Asked Questions

What functions does the scientific calculator have?▾

Basic operations (+, -, ×, ÷), trigonometry (sin, cos, tan and inverses), logarithms (log base 10, natural log), powers (x^y), square root, factorial, and constants (π, e).

Can I use my keyboard?▾

Yes! Type numbers and operators directly. Use * for multiply, / for divide, Enter for equals, Backspace to delete, and Escape to clear.

What is the difference between degrees and radians?▾

Degrees divide a circle into 360 parts. Radians use the ratio of arc length to radius (2π radians = 360°). Most scientific work uses radians, while everyday angles use degrees.

About Scientific Calculator

NexTool's Scientific Calculator is completely free to use with no sign-up required. Your data is processed directly in your browser and never sent to our servers, ensuring complete privacy and instant results.