Calculators & Converters
Financial loan calculators, unit converters, and computational utilities.
US Mortgage Calculator
Calculate estimated monthly US mortgage payments including principal, interest, property taxes, home insurance, and HOA fees.
Binary, Hex, Octal & Decimal Converter
Convert numbers between Binary (Base 2), Octal (Base 8), Decimal (Base 10), and Hexadecimal (Base 16) in real-time.
BMI & Health Fitness Calculator
Calculate Body Mass Index (BMI), healthy weight range, and body composition fitness category.
Data Storage & Bandwidth Unit Converter
Convert data storage units between Bytes, KB, MB, GB, TB, and PB in real-time.
EMI & Loan Repayment Calculator
Calculate monthly EMI, total interest payable, and repayment schedules for home, car, and personal loans.
Exact Age & Date Difference Calculator
Calculate exact age in years, months, weeks, days, and hours between two calendar dates.
File Download & Upload Time Calculator
Calculate file download and upload duration based on file size and internet connection bandwidth.
JSON to YAML Quick Converter
Convert JSON objects to clean YAML configuration strings or parse YAML back to structured JSON.
Percentage & Discount Calculator
Calculate percentage increases, percentage differences, store discount prices, and profit margins.
PX to REM / EM Units Converter
Convert pixel values (px) to responsive REM and EM CSS units based on custom root font sizes.
Responsive Container & Scale Calculator
Calculate responsive web canvas sizes, scaling factors, and container dimensions for web layouts.
Roman Numeral Converter (Numbers to Roman)
Convert decimal numbers to Roman numerals (e.g. 2026 to MMXXVI) and decode Roman numerals back to numbers.
Unix Epoch Timestamp & Time Zone Converter
Convert Unix epoch timestamps to human-readable date strings and convert dates across global timezones.
US GPA Calculator
Calculate your US High School and College Grade Point Average (GPA) on standard 4.0 scale with AP/Honors weighting.
US Paycheck Take-Home Calculator
Estimate your net take-home pay after federal income taxes, FICA (Social Security & Medicare), and state tax withholdings.
US Sales Tax Calculator
Calculate total sales tax and final price for US state and local tax rates, or reverse-calculate pre-tax amounts.