QuickCalcs

Free calculators and tools for
students and professionals

Academic grades, investment returns, loan EMIs, developer utilities, and everyday math. No sign-up, no tracking — runs entirely in your browser.

Academic

GPA Calculator

Grade Point Average from course grades and credit hours

Weighted Grades

Final grades from weighted categories like exams and homework

Percentage Calculator

Percentages, percentage change, and percentage of amounts

Financial

SIP Calculator

Systematic investment plan returns with compound growth

Lumpsum Calculator

One-time investment growth over time with compounding

XIRR Calculator

True annualized returns for irregular cash flows

Loan EMI Calculator

Monthly installments and total cost for any loan type

Lifestyle

Age Calculator

Exact age in years, months, days, hours, and minutes

Calorie Calculator

Daily calorie needs based on your body and activity level

Time Calculator

Add, subtract, and convert time durations

Dice Roller

Virtual dice for games, D&D, and random decisions

Developer

JSON Formatter

Format, minify, and validate JSON data

Base64 Encoder

Encode and decode Base64 strings with unicode support

Password Generator

Generate strong, random passwords with custom rules

Conversion

Text Case Converter

Convert text between camelCase, snake_case, Title Case, and more

Unit Converter

Convert length, weight, temperature, volume, and speed

All tools are free and private

Every calculation happens in your browser. Nothing is sent to any server. No accounts, no data collection, no limits on usage.

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