Calculators
Ten free calculators for everyday math — ages, dates, percentages, discounts, tips, loans, units, and more.
Age Calculator
Exact age in years, months, and days between any two dates.
Days Between Dates
Count days between two dates, with business-day totals.
Percentage Calculator
Percent of a number, percent change, and more, in one tool.
Discount Calculator
Final price after one or several stacked discounts.
Tip Calculator
Split a bill and calculate tips per person.
Loan / EMI Calculator
Monthly payment and full amortization schedule for any loan.
Unit Converter
Length, weight, temperature, volume, area, speed, and more.
Password Generator
Strong random passwords or memorable passphrases.
QR Code Generator
QR codes for URLs, text, Wi-Fi, contact cards, and more.
Random Number / Team Picker
Fair random numbers, name draws, and team splits.