ScienceCalculators

Count significant figures, round numbers to N sig figs, and apply addition, subtraction, multiplication, and division with correct sig fig precision rules.

Calculate your VO2 Max (maximal oxygen uptake) and aerobic fitness level

Calculate Body Mass Index (BMI) based on height and weight

Calculate daily caloric needs based on personal factors and activity level.

Calculate your Basal Metabolic Rate (BMR) and daily calorie needs

Solve any equation step by step -- linear, quadratic, cubic, polynomial, and transcendental. Free solutions with interactive graph and discriminant analysis.

Compute definite integrals numerically with Simpson's rule, trapezoidal rule, or midpoint method. Visualize the shaded area under any curve with free step-by-step solutions.

Perform matrix operations including addition, multiplication, determinant, inverse, RREF, rank, trace, and eigenvalues with step-by-step results.

Convert numbers between binary, octal, decimal, hex, and any base 2-36. Instant multi-base display with positional breakdown and step-by-step conversion.

Solve quadratic equations ax² + bx + c = 0 using the quadratic formula. Find roots, discriminant, vertex, and graph the parabola.

Solve systems of 2 or 3 linear equations step by step. Gaussian elimination, Cramer's rule, and matrix inverse methods with system classification.

Calculate your personal carbon footprint based on daily activities and consumption.

Calculate confidence intervals for population means, proportions, and differences

Calculate solution molarity, mass, or volume for chemistry solutions

Generate random numbers with customizable ranges and distribution types.

Fit linear, polynomial, exponential, logarithmic, and power regression models to data

Quickly convert temperatures between Celsius, Fahrenheit, and Kelvin.

Perform 2D and 3D vector operations including addition, subtraction, dot product, cross product, and more

Calculate the volume of various 3D shapes with different units.

Calculate velocity, acceleration, distance, and time in motion problems.

Calculate DNA/RNA concentration, purity ratio, and yield from spectrophotometer readings.

Calculate p-values and statistical significance for various hypothesis tests

Advanced scientific calculator with trigonometric, logarithmic, and exponential functions.

Convert between various units including length, weight, volume, area, speed, and pressure.

Explore the unit circle interactively: enter any angle to see all six trigonometric function values, coordinates, quadrant, and reference angle.