42 free online calculators
Calculate your Grade Point Average (GPA) based on grades and credit hours. Uses a standard 4.0 scale...
Final Grade CalculatorFigure out the minimum score you need on your final exam to achieve your target grade in a course....
Scientific CalculatorPerform advanced mathematical calculations including trigonometry, logarithms, exponents, roots, and...
SAT Score CalculatorEstimate your SAT score based on raw scores from the Evidence-Based Reading & Writing and Math s...
College GPA CalculatorCalculate your cumulative GPA by entering grades and credit hours for each course. Supports 4.0 scal...
Scholarship CalculatorCalculate how much of your total college costs are covered by scholarships, grants, and financial ai...
Study Time CalculatorEstimate weekly study hours needed based on course credits, difficulty level, and your target grade....
Reading Time CalculatorEstimate reading time for any text based on word count and reading speed. Average adult reads 200-25...
Typing Speed CalculatorCalculate your typing speed in WPM and accuracy based on characters typed, time taken, and errors....
Word Count CalculatorCount words, characters, sentences, and paragraphs in your text. Also estimates reading and speaking...
Roman Numeral ConverterConvert between Roman numerals (I, V, X, L, C, D, M) and standard Arabic numbers (1, 2, 3...)....
Final Exam Grade CalculatorCalculate the minimum grade you need on your final exam to achieve your desired course grade....
GPA to Percentage ConverterConvert your GPA on a 4.0 scale to equivalent percentage, letter grade, and class standing....
Standard Deviation CalculatorStandard Deviation Calculator — free online tool....
Z-Score CalculatorZ-Score Calculator — free online tool....
Probability CalculatorProbability Calculator — free online tool....
Sample Size CalculatorSample Size Calculator — free online tool....
Combination Calculator (nCr)Combination Calculator (nCr) — free online tool....
Permutation Calculator (nPr)Permutation Calculator (nPr) — free online tool....
Mean Median Mode CalculatorMean Median Mode Calculator — free online tool....
Matrix Determinant CalculatorMatrix Determinant Calculator — free online tool....
Dilution CalculatorDilution Calculator — free online tool....
Half-Life CalculatorHalf-Life Calculator — free online tool....
Wavelength CalculatorWavelength Calculator — free online tool....
Molarity CalculatorMolarity Calculator — free online tool....
Chi-Square CalculatorChi-Square Calculator — free online tool....
Confidence Interval CalculatorConfidence Interval Calculator — free online tool....
P-Value CalculatorP-Value Calculator — free online tool....
Correlation CalculatorCorrelation Calculator — free online tool....
Derivative Rules CalculatorDerivative Rules Calculator — free online tool....
Limit CalculatorLimit Calculator — free online tool....
Vector CalculatorVector Calculator — free online tool....
Integration Rules CalculatorIntegration Rules Calculator....
Taylor Series CalculatorTaylor Series Calculator....
Quadratic Formula CalculatorQuadratic Formula Calculator....
Logarithm CalculatorLogarithm Calculator....
Exponent CalculatorExponent Calculator....
Pythagorean Theorem CalculatorPythagorean Theorem Calculator....
Circle CalculatorCircle Calculator....
Triangle Area CalculatorTriangle Area Calculator....
Cylinder Volume CalculatorCylinder Volume Calculator....
Sphere Volume CalculatorSphere Volume Calculator....
Fast, accurate calculators for finance, work, tech, and everyday math. Clear formulas and instant answers.
Browse 600+ free online calculators for finance, math, health, tech, business, education, salary, time, and unit conversions. Instant, accurate results with formulas and worked examples.