CalculatorSwitch
Calculator Switch

Calculate Anything,
Instantly.

Free calculators for math, education, time, and everyday tasks. No sign-up required.

GPA Calculators Unit Converters Math Calculators

Popular Calculators

View all →

Random Number Generator

Free random number generator. Generate one or multiple random integers in any range. Options for min, max, and quantity. No sign-up required.

Grade Calculator

Free grade calculator. Enter assignment grades and weights to find your overall course grade. Also calculates what you need on your final exam.

College GPA Calculator

Free college GPA calculator. Enter your letter grades and credit hours to instantly calculate your semester or cumulative GPA on the standard 4.0 scale.

High School GPA Calculator

Free high school GPA calculator with weighted and unweighted GPA. Supports Regular, Honors, and AP/IB courses. Calculate your GPA instantly.

Time Calculator

Free time calculator. Add or subtract hours, minutes, and seconds. Get instant results for scheduling, cooking, work hours, and time tracking.

Date Calculator

Free date calculator. Find days between two dates or add/subtract years, months, weeks, and days from any date. Includes end-day toggle.

Browse by Category

Math

Random Number Generator

Free random number generator. Generate one or multiple random integers...

Percentage Calculator

Free percentage calculator. Calculate what percent of any number insta...

Fraction Calculator

Free fraction calculator. Add, subtract, multiply, or divide two fract...

Percentage Change Calculator

Free percentage change calculator. Enter the original and new values t...

Average Calculator

Free average calculator. Enter a list of numbers to find the mean, med...

Speed Distance Time Calculator

Free speed distance time calculator. Enter any two values to solve for...

Area Calculator

Free area calculator. Select a shape and enter dimensions to calculate...

Volume Calculator

Free volume calculator. Select a 3D shape and enter dimensions to calc...

Ratio Calculator

Free ratio calculator. Solve proportions by finding the missing value ...

Standard Deviation Calculator

Free standard deviation calculator. Enter your data to calculate stand...

Quadratic Formula Calculator

Free quadratic formula calculator. Solve any quadratic equation with s...

Aspect Ratio Calculator

Free aspect ratio calculator. Find the aspect ratio of any image or vi...

GCF Calculator (Greatest Common Factor)

Free GCF calculator. Find the greatest common factor of two or more nu...

LCM Calculator (Least Common Multiple)

Free LCM calculator. Find the least common multiple of two or more num...

Slope Calculator

Free slope calculator. Find slope, y-intercept, equation, angle, and d...

Pythagorean Theorem Calculator

Free Pythagorean theorem calculator. Find any side of a right triangle...

Circle Calculator

Free circle calculator. Find radius, diameter, circumference, and area...

Triangle Calculator

Free triangle calculator. Solve any triangle from any 3 values (SSS, S...

Exponent Calculator

Free exponent calculator. Compute any base raised to any power with st...

Logarithm Calculator

Free logarithm calculator. Compute log base any value with step-by-ste...

Prime Number Checker

Free prime number checker. Check if any number is prime with step-by-s...

Factorial Calculator

Free factorial calculator. Compute factorial of any number up to 1000 ...

Frequently Asked Questions

What calculators does CalculatorSwitch offer? +
CalculatorSwitch offers free online calculators across multiple categories: math (percentages, fractions, averages), education (GPA, grades), time and date, work hours, everyday tools (tips, discounts, fuel cost), unit conversions (temperature, weight, length, volume), and more.
Are these calculators free to use? +
Yes, every calculator on CalculatorSwitch is completely free with no sign-up, no paywalls, and no limits on usage. All calculations run in your browser — we don't store any data.
How accurate are the calculators? +
All calculators use verified formulas and internationally standardized conversion factors. Results are calculated with full precision and rounded for readability. Every formula is tested against multiple sources before publication.