Converters & Calculators
Convert units, currencies, and time zones. Calculate tips, ages, and recipes.
Unit, currency, and time zone conversions, along with everyday calculations like tips and recipe scaling, are things almost everyone needs occasionally and almost nobody wants to do by hand. This category groups those small, frequent conversions together specifically because they're too minor individually to search for a dedicated app, but genuinely useful to have on hand as a set.
Unit Converter
Convert length, weight, temperature, and more
Currency Converter
Convert currencies with live exchange rates
Time Zone Converter
Convert times between any time zones
Tip Calculator
Calculate tips and split bills easily
Age & Date Calculator
Calculate age, date differences, and more
Job Experience Calculator
Calculate work experience in years, months, and days -- add multiple jobs for a combined total
Recipe Scaler
Scale recipe ingredients up or down
Percentage Calculator
Calculate percentages, percentage change, and what-percent-of
GPA Calculator
Calculate your grade point average from courses and credits
Roman Numeral Converter
Convert between numbers and Roman numerals
Random Number Generator
Generate random numbers in any range, with or without duplicates