Education Calculators
GPA calculators, grade trackers, and academic tools. 124 free calculators — instant results, no sign-up required.
Axis of Symmetry Calculator
Find the axis of symmetry and vertex of a quadratic function from standard form ax² + bx + c.
Quadratic Maximum and Minimum Calculator
Find the maximum or minimum value of a quadratic function using the vertex.
Polynomial End Behavior Calculator
Analyze polynomial end behavior from the degree and leading coefficient.
Polynomial Degree Calculator
Find the degree, leading term, and leading coefficient of a polynomial expression.
Leading Coefficient Test Calculator
Apply the leading coefficient test to predict polynomial end behavior.
Scale Factor Calculator
Calculate scale factor for dilations and scale drawings. Find enlargements and reductions. Geometry transformation calculator.
Triangle Missing Angle Calculator
Find the missing interior angle of a triangle when two angles are known.
Isosceles Triangle Calculator
Calculate height, area, perimeter, and angles of an isosceles triangle from equal side and base.
Equilateral Triangle Calculator
Calculate side, height, area, perimeter, and angles of an equilateral triangle from one known value.
Right Triangle Altitude Calculator
Find the altitude to the hypotenuse of a right triangle from the two legs.
Triangle Inequality Calculator
Check whether three side lengths form a triangle or find the possible range for a missing third side.
Law of Sines Calculator
Solve non-right triangle side and angle problems using the Law of Sines, with step-by-step proportions and ambiguous-case notes.
Law of Cosines Calculator
Solve SAS and SSS triangle problems using the Law of Cosines, with side, angle, and validity checks shown step by step.
Ambiguous Case SSA Calculator
Determine whether an SSA triangle has no solution, one solution, or two solutions, then solve the possible triangles with Law of Sines steps.
Radian to Degree Calculator
Convert degrees to radians and radians to degrees, with exact π-form notes, decimal answers, and common angle examples.
Middle School GPA Calculator
Calculate middle school GPA without credit hours. Supports letter grades, percentages, and grade points. Track cumulative GPA across all semesters, set grade goals, and see how your GPA compares. Built for 6th, 7th, and 8th grade students and parents.
Unit Circle Coordinates Calculator
Find unit circle coordinates, sine, cosine, tangent, quadrant, normalized angle, and reference angle from degrees or radians.
Arc Length Calculator
Calculate the arc length of a circle from radius and central angle, with degree/radian conversion, chord length, and step explanation.
High School GPA Calculator
Calculate weighted and unweighted high school GPA simultaneously. Supports Regular, Honors, AP, IB, and Dual Enrollment courses with credit hours. Track cumulative GPA across all 4 years, set grade goals, and see which college tiers your GPA matches.
Sector Area Calculator
Calculate sector area from radius and central angle, with arc length, sector perimeter, degree/radian conversion, and examples.
Central Angle Calculator
Find a circle central angle from arc length, sector area, or chord length, with radians, degrees, and formula steps.
GPA Calculator
Calculate semester GPA, cumulative GPA, high school weighted and unweighted GPA, and grade goals all in one place. Supports letter grades, percentages, and credit hours. Updates live as you type.
GPA Calculator for Sri Lanka
Calculate SGPA and CGPA for any Sri Lankan university — all 17 government universities plus major private institutes. Pick your university to see its classification thresholds, then calculate your GPA using letter grades or marks.
Inscribed Angle Calculator
Calculate an inscribed angle, intercepted arc, or related central angle using the inscribed angle theorem with clear steps.
Similar Triangles Calculator
Solve similar-triangle proportions, find missing corresponding sides, check side-ratio similarity, and calculate scale factor with steps.
GPA Calculator for Nigeria
Calculate CGPA using Nigeria's official 5-point NUC scale, covering all major federal, state, and private universities. See your degree classification — First Class, Second Class Upper, Second Class Lower, Third Class, or Pass.
GPA Calculator for Rwanda
Calculate GPA and degree classification for University of Rwanda and other Rwandan institutions using the official 5-point scale. Includes an A-Level (AGCSE) to GPA conversion tool. Available in English and Kinyarwanda.
GPA Calculator for Malawi
Calculate your weighted average and degree classification for University of Malawi (UNIMA), MUBAS, MZUNI and other Malawian universities. Includes MSCE to GPA conversion. Available in English and Chichewa.
GPA Calculator for Papua New Guinea
Calculate Grade 12 GPA for university selection, check Grade 10 eligibility for Grade 11, or calculate your University of Papua New Guinea (UPNG) GPA. Available in English and Tok Pisin.
GPA Calculator for Laos
Convert Lao grades to a US 4.0 GPA and calculate your GPA for the National University of Laos and other major Lao universities. Available in Lao and English.
GPA Calculator for Cambodia
Convert Cambodia Baccalaureate (Bac II) grades and university marks to a US 4.0 GPA. Covers AUPP, RUPP, NIM, and other major Cambodian universities. Available in Khmer and English.
GPA Calculator for Myanmar
Convert Myanmar Matriculation Exam marks and university grades to a US 4.0 GPA. Select your specific university for its exact grading scale. Available in Burmese and English.
Z Score Step-by-Step Calculator
Calculate a z score from a raw score, mean, and standard deviation with formula steps and normal-area interpretation.
Empirical Rule Calculator
Calculate 68-95-99.7 rule intervals from a mean and standard deviation.
Chebyshev’s Theorem Calculator
Calculate Chebyshev minimum percentages and intervals for any distribution.
Normal Distribution Range Calculator
Find the probability between two values in a normal distribution with z-score steps.
Binomial Probability Step-by-Step Calculator
Calculate exact, at most, at least, and between binomial probabilities with steps.
Geometric Probability Distribution Calculator
Calculate geometric probabilities for trials until first success or failures before first success.
Permutation and Combination Difference Calculator
Compare permutations and combinations and learn when order matters.
Conditional Probability Calculator
Calculate P(A|B), P(B|A), and check independence from probabilities.
Bayes Theorem Student Calculator
Calculate posterior probability using Bayes theorem with prior, likelihood, and false-positive probability.
Expected Value Calculator
Calculate expected value, variance, and standard deviation from a discrete probability table.
AP Calculus AB Score Calculator
Estimate an AP Calculus AB score from multiple-choice and free-response raw scores with editable composite thresholds.
AP Calculus BC Score Calculator
Estimate an AP Calculus BC score from MCQ and FRQ results with editable thresholds and AB subscore context.
APES Exam Score Calculator
Estimate an AP Environmental Science exam score from MCQ and FRQ points using APES section weights.
Bell Curve Grade Calculator
Convert a raw score into a bell-curve grade using class mean, standard deviation, and editable letter cutoffs.
Square Root Curve Calculator
Apply a square-root grade curve or adjustable exponent curve to a raw score and compare raw versus curved grades.
RogerHub Final Grade Calculator
Calculate the final exam score needed to reach a target course grade, plus what-if final grade outcomes.
Cumulative GPA Calculator (Rutgers)
Calculate Rutgers-style semester and cumulative GPA using credits, grades, current GPA, and current completed credits.
Oakland University GPA Calculator
Calculate an Oakland University-style GPA using credit hours, letter grades, and the OU four-point grade scale.
GPA to Percentage Calculator
Convert GPA to percentage using common methods such as simple scale conversion, 9.5 multiplier, and custom scale mapping.
Law School GPA Calculator
Estimate a law-school application GPA using credit-weighted grades on a CAS-style 4.33 scale.
Law School Admissions Calculator
Estimate law school admissions strength from LSAT, GPA, and a target school’s LSAT/GPA percentile profile.
Law School Acceptance Calculator
Estimate law school acceptance likelihood from LSAT, GPA, school medians, application timing, and soft-factor strength.
Law School Scholarship Calculator
Estimate law school scholarship competitiveness from LSAT/GPA position, school medians, and annual tuition.
GOAT Academy Calculator
Calculate weighted grades, points grades, and final-exam targets for GOAT Academy style academic planning without changing your official course rules.
GPA Calculator SSC
Calculate SSC GPA on a 5.00 scale with compulsory subjects, optional subject bonus, fail handling, A+ count, and clear result breakdowns.
Grading Bell Curve Calculator
Estimate bell-curve grades using score, class mean, standard deviation, z-score bands, and percentile placement.
Elimination Method Calculator
Solve a system of two linear equations using the elimination method, with step-by-step work, system classification, and answer checking.
Inequality Interval Notation Calculator
Convert inequalities to interval notation, including linear inequalities, bounded intervals, outside intervals, brackets, parentheses, and number line descriptions.
Compound Inequality Calculator
Solve compound inequalities joined by AND or OR, then convert the answer to interval notation with number-line guidance.
Absolute Value Equation Calculator
Solve absolute value equations in the form A|Bx+C|+D=E with step-by-step branches, checks, and no-solution detection.
Absolute Value Inequality Calculator
Solve absolute value inequalities with less-than and greater-than cases, compound inequalities, interval notation, and number-line descriptions.
Midpoint Formula Calculator
Find the midpoint between two coordinate points with step-by-step work. Includes distance, slope, formula explanation, examples, and common midpoint mistakes.
Nepal SEE GPA Calculator
Calculate Nepal SEE GPA from subject percentage marks, credit hours, grade points, and NG status with Nepali and English guidance.
Semester GPA Calculator
Calculate semester GPA from course credits, grades, optional dropped courses, pass/fail exclusions, extra credit, and cumulative GPA projection.
College GPA Calculator
Calculate college semester GPA, cumulative GPA, target GPA gap, and graded credit impact with college-style course rules.
Distance Formula Calculator
Calculate the distance between two coordinate points using the distance formula. Includes step-by-step substitution, distance squared, examples, and common mistakes.
Nepal NEB GPA Calculator
Calculate Nepal NEB Grade 11 or Grade 12 GPA from theory and practical marks, full marks, credit hours, and grade points.
Nepal TU KU PU GPA Calculator
Calculate SGPA and estimated CGPA for TU, KU, Pokhara University, and Purbanchal University from credit hours and letter grades.
Slope Intercept Form Calculator
Convert slope and intercept, two points, or standard form into slope-intercept form. Includes steps, intercepts, examples, and line-form explanations.
Weighted GPA Calculator
Calculate weighted GPA with regular, honors, AP, IB, and dual-enrollment course weighting plus unweighted comparison.
Point Slope Form Calculator
Build point-slope form from a point and slope or two points. Includes slope-intercept form, standard form, steps, examples, and vertical-line notes.
Unweighted GPA Calculator
Calculate unweighted GPA on a 4.0 scale from letter grades, percentages, or grade points with credit-weighted or equal-course averaging.
Arithmetic Sequence Calculator
Find arithmetic sequence terms, common difference, explicit formula, recursive formula, and the sum of the first n terms with step-by-step work.
Geometric Sequence Calculator
Find geometric sequence terms, common ratio, explicit formula, finite sum, and infinite sum checks with step-by-step work.
Nth Term Calculator
Detect arithmetic, geometric, and quadratic sequence patterns and calculate the nth term with steps, formulas, and generated terms.
Arithmetic Series Sum Calculator
Calculate the sum of an arithmetic series from first term, common difference, number of terms, or first and last term with steps.
Significant Figures Calculator
Count significant figures and round numbers to a chosen number of sig figs. Includes rules, examples, scientific notation, and lab-report guidance.
Empirical Formula Calculator
Calculate empirical formulas from percent composition or element masses. Includes mole ratios, multiplier, empirical formula mass, molecular formula option, and examples.
Geometric Series Sum Calculator
Calculate finite and infinite geometric series sums with convergence checks, formulas, examples, and step-by-step work.
Recursive Formula Calculator
Write recursive formulas for arithmetic and geometric sequences from entered terms, with explicit formula comparison and step-by-step work.
Explicit Formula Calculator
Find explicit formulas for arithmetic and geometric sequences from terms, with nth-term output and recursive formula comparison.
Kinematic Equations Calculator
Solve constant-acceleration kinematic equations for initial velocity, final velocity, acceleration, time, and displacement with steps and examples.
Factor by Grouping Calculator
Factor four-term polynomials by grouping with step-by-step GCF extraction and common-binomial checks.
Morocco Baccalaureate to GPA Calculator
Convert Moroccan baccalaureate moyenne from continuous assessment, regional exam, and national exam into an estimated 4.0 GPA with Arabic and French guidance.
Difference of Squares Calculator
Factor expressions in the form Ax² − B using the difference of squares pattern with step-by-step checks.
Morocco Moyenne to GPA Calculator
Convert a Moroccan moyenne out of 20, or a coefficient-weighted subject average, into an estimated GPA with Arabic and French explanations.
Perfect Square Trinomial Calculator
Check and factor perfect square trinomials in the form Ax² + Bx + C with step-by-step pattern tests.
Assignment Grade Calculator
Calculate an assignment grade from points, rubric score, weight, extra credit, late penalty, dropped-score logic, and course impact.
Test Grade Calculator
Calculate a test grade from correct answers, wrong answers, partial credit, extra credit, curve, penalties, and grade-scale conversion.
Homework Grade Calculator
Calculate a homework category grade with multiple assignments, weights, dropped lowest score, late penalties, extra credit, and course impact.
Course Grade Calculator
Calculate a full course grade from weighted categories such as homework, tests, quizzes, projects, final exam, participation, curve, and extra credit.
Extra Credit Grade Calculator
Estimate how extra credit changes an assignment, category, or course grade, including points-based bonus, percentage bonus, caps, and GPA impact.
Pass Fail Grade Calculator
Check whether a score is pass or fail, calculate the score needed to pass, and estimate pass/fail impact with cutoffs, weights, curves, and policy warnings.
Letter Grade Calculator
Convert percentages, points, or custom cutoffs into letter grades and grade points with plus/minus scale options and grading-policy warnings.
Grade Percentage Calculator
Calculate grade percentage from points, missed questions, extra credit, penalties, category weight, and rounding rules.
Maldives GPA Calculator
Calculate a Maldives-style weighted GPA from subject grades, credits, and optional manual grade points with Dhivehi and English guidance.
Maldives O-Level/A-Level to GPA Calculator
Convert Maldives O-Level, IGCSE, GCE O/L, A-Level, or HSC grades into an estimated GPA with pass checks and Dhivehi-English guidance.
Rubric Grade Calculator
Calculate a rubric grade from weighted criteria, points, performance levels, extra credit, penalties, and course impact.
Grade Replacement Calculator
Estimate how replacing an old grade with a new grade changes a course grade, category average, or GPA with replacement-policy warnings.
Dropped Lowest Grade Calculator
Calculate an average after dropping the lowest score, lowest percentage, or lowest weighted assignment with extra-credit and policy warnings.
Weighted Assignment Calculator
Calculate weighted assignment impact on a course grade with category weights, points, extra credit, late penalties, dropped-score context, and target planning.
Namibia GPA Calculator
Calculate an estimated Namibia GPA from subject grades, marks, credits, and major university guidance with English, Afrikaans, and Oshiwambo notes.
Namibia NSSC to GPA Calculator
Convert Namibia NSSCO, NSSCAS, and old NSSCH subject symbols into estimated GPA, best-subject totals, and university planning notes.
Sum and Difference of Cubes Calculator
Factor expressions using the sum of cubes and difference of cubes patterns with step-by-step explanations.
Rational Expression Simplifier Calculator
Simplify rational expressions by factoring, cancelling common factors, and keeping denominator restrictions.
Rational Equation Calculator
Solve rational equations with cross multiplication, denominator restrictions, and extraneous solution checks.
Complex Fraction Simplifier Calculator
Simplify complex fractions and complex rational expressions by multiplying by the reciprocal and tracking restrictions.
Function Composition Calculator
Find f(g(x)), g(f(x)), and evaluated composite values for linear and quadratic polynomial functions.
Inverse Function Calculator
Find inverse functions for linear, fractional linear, and restricted quadratic functions with one-to-one condition notes.
Domain and Range Calculator
Find the domain and range for quadratic, rational, and square root functions with interval notation and explanations.
Piecewise Function Calculator
Evaluate piecewise functions by selecting the correct interval and applying the matching function rule.
Vertex Form Calculator
Convert quadratic functions from standard form to vertex form and identify the vertex, axis, and maximum or minimum.
Quadratic Discriminant Calculator
Calculate the discriminant of a quadratic equation and classify the number and type of solutions.
Microeconomics AP Score Calculator
Estimate an AP Microeconomics composite score and unofficial 1–5 score from multiple-choice and free-response practice points, with adjustable section weights and cutoffs.
NSPIRE Score Calculator
Estimate an NSPIRE-style inspection score by entering defect deductions, severity levels, inspectable areas, and optional score caps for study or training use.
pH and pOH Calculations Worksheet
Practice pH, pOH, hydrogen ion concentration, hydroxide ion concentration, Kw, and acidity classification with instant step-by-step answers.
QPA Calculator CMU
Calculate a Carnegie Mellon-style Quality Point Average from course units and grades, with semester QPA, cumulative planning, and target QPA options.
Speed Velocity and Acceleration Calculations Worksheet
Practice speed, velocity, acceleration, time, displacement, and constant-acceleration equations with instant answers and worksheet-style result breakdowns.
Texas Curve Calculator
Curve test scores using common Texas-style classroom curve methods, including top-score-to-100, points added, square-root curve, and target mean adjustment.
What Does the HESI A2 Calculator Look Like?
Practice with a simple HESI A2-style on-screen calculator and learn what to expect from calculator use during HESI A2 math preparation.
AP Art History Calculator
Estimate an AP Art History practice composite score and unofficial 1–5 score from multiple-choice and free-response results with editable cutoffs.
AP Biology Exam Calculator
Estimate an AP Biology exam composite score and unofficial 1–5 score from multiple-choice and free-response practice points with editable cutoffs.