This is an online javascript scientific calculator. You can click the buttons or type to perform calculations as you would on a physical calculator.
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A scientific calculator is an essential computational instrument engineered for scientists, engineers, mathematicians, students, and educators. Unlike basic four-function calculators, scientific calculators support complex mathematical operations including higher-degree roots, transcendental functions, trigonometric ratios, natural logarithms, permutations, factorials, and scientific exponential notation.
Our online calculator is designed with 100% JavaScript execution running entirely inside your browser. No data is sent to external servers, providing instantaneous performance, zero latency, and complete privacy.
Degree mode (DEG) measures angles from 0° to 360° for a full circle, commonly used in basic geometry, navigation, and surveying. Radian mode (RAD) measures angles in terms of circle radius (2π radians = 360°), which is the standard unit in calculus, physics, and advanced trigonometry.
M+ adds the current display value to the stored memory register. M- subtracts the current value from memory. MR recalls the memory value into your active formula, and MC resets the memory register to zero.
The Ans key holds the numeric result of your most recent calculation. You can use Ans in a new formula (e.g., Ans × 2 or sqrt(Ans)) without having to retype long decimal figures.
EXP inserts scientific notation (powers of 10). For example, entering 5 EXP 3 represents 5 × 10³ = 5,000. Entering 2.5 EXP -4 represents 2.5 × 10⁻⁴ = 0.00025.
In trigonometry, tan(θ) = sin(θ) / cos(θ). At 90°, cos(90°) equals 0. Dividing by zero is mathematically undefined, so the calculator correctly outputs an error rather than an invalid number.
Yes, this scientific calculator is 100% responsive and touch-optimized for smartphones, tablets, laptops, and 4K desktop screens.