Mathematics Calculators
Solve complex math problems instantly with our powerful computational tools.
From basic arithmetic to advanced trigonometry and geometry, our Mathematics Calculators are here to simplify your studies and work. Designed for students, teachers, and professionals, these tools handle everything from fraction arithmetic to triangle properties and scientific calculations, ensuring accuracy and saving you time.
All Calculators36
Percentage Calculator — What Is X% of Y? Increase & Decrease
Solve any percentage problem instantly: X% of Y, percentage increase/decrease, what % is X of Y, and percentage difference. With step-by-step formula shown.
Final Grade Needed Calculator
Find the score needed on a final exam to reach a target course grade.
GPA to Percentage Calculator
Convert a GPA on a 4.0, 5.0 or 10-point scale to a percentage estimate.
Cumulative GPA Calculator
Combine completed credits and a new term GPA into a cumulative GPA.
Tuition cost
Estimate total tuition and mandatory fees across a multi-year programme.
Assignment grade
Convert points earned on an assignment into a percentage, letter grade and course contribution.
Attendance
Calculate attendance percentage, missed sessions and the classes needed to reach a target rate.
College budget
Add up the main annual costs of college and see the monthly and semester equivalents.
Exam countdown
Count the days, weeks and weekdays between a reference date and an exam date.
Final exam score
See the final course grade from a current grade, exam score and exam weight.
GPA goal
Find the GPA you need next term to reach a cumulative GPA target.
Percentage to GPA
Convert a course percentage to a GPA on a 4.0, 5.0 or 10.0 scale.
Quiz average
Average up to four quiz scores and see the percentage, letter band and range.
SGPA
Calculate semester grade point average from credits and grade points.
Semester average
Average four course percentages into a single semester score.
Student loan
Estimate the monthly payment, total repayment and interest on a student loan.
Test score percentage
Turn correct answers into a test percentage and compare it with a passing threshold.
Unweighted GPA
Calculate an unweighted GPA by averaging course grade points on a standard 4.0 scale.
Weighted GPA
Calculate a credit-weighted GPA and add an optional honours bonus.
Weighted average
Combine two values with different weights into a single weighted average.
Basic Calculator - Free Online Calculator for Everyday Math
Use a simple online calculator for quick addition, subtraction, multiplication, and division with instant results on any device.
Scientific Calculator - Free Online Calculator for Math and Trig
Solve trigonometry, logarithms, exponents, and advanced equations with a scientific calculator built for fast, accurate results.
Triangle Calculator - Find Sides, Angles, Area and Perimeter
Calculate triangle sides, angles, area, and perimeter for right, isosceles, equilateral, and scalene triangles in one place.
Fraction Calculator - Add, Subtract, Multiply and Divide Fractions
Work out fraction problems online, simplify answers, and calculate mixed numbers quickly with step-friendly fraction tools.
GPA Calculator — CGPA & SGPA on 4.0 and 10-Point Scale
Enter your course credits and grades to instantly calculate GPA, SGPA, or cumulative CGPA. Supports the 4.0 scale and the 10-point grading scale used by many universities.
Percentage Change Calculator - Calculate Increase or Decrease
Find percentage increase or percentage decrease between two values quickly for prices, revenue, marks, and metrics.
Percentile rank
Find the share of a group that scored below a given result using the standard percentile-rank formula.
Reading list time
Estimate the total time needed to finish a reading list at a steady reading pace.
Course load
Add up semester credits and the weekly study time they usually require.
Credit hours
Convert enrolled credits into weekly study, class and total commitment hours.
Pomodoro plan
Turn an estimated focus time into pomodoro sessions, breaks and a realistic finish time.
Reading time
Convert a page count and reading speed into minutes and hours of reading time.
Scholarship gap
Find the funding still needed after scholarships, grants and current savings.
Study time
Work out how many study hours are needed and whether your available days can cover them.
Words per page
Estimate the total word count of a document from its page count and page density.
Test score improvement
Compare two test scores and see the point gain, percentage change and share of the maximum.
Frequently asked questions
Can I solve geometry problems online?
Yes, our Triangle and specialized geometry calculators can solve for area, perimeter, and missing angles instantly.
Is the scientific calculator free?
Yes, our full-featured scientific calculator is completely free to use directly in your browser.
Do you have a fraction calculator?
Yes, we have a dedicated Fraction Calculator that handles addition, subtraction, multiplication, and division of fractions.