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

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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.

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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.