Everyday & Utility
Essential calculators for daily life — tips, discounts, conversions, and more.
Percentage Calculator
Calculate percentages, percentage change, increase, decrease, and difference between two values instantly.
Tip Calculator
Split bills and calculate tips easily. Supports custom tip percentages and bill splitting between multiple people.
Age Calculator
Calculate your exact age in years, months, days, hours, minutes, and seconds from your date of birth.
Date Calculator
Add or subtract days, weeks, months from a date. Calculate the difference between two dates.
Unit Converter
Convert between hundreds of units of length, weight, temperature, volume, speed, and more.
Length Converter
Convert between meters, feet, inches, kilometers, miles, centimeters, yards, and more length units.
Weight Converter
Convert between kilograms, pounds, ounces, grams, stones, tons, and other weight units.
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin temperature scales instantly.
Speed Calculator
Calculate speed, distance, or time. Convert between mph, km/h, m/s, knots, and other speed units.
Time Zone Converter
Convert times between different time zones worldwide. Plan meetings across continents easily.
Discount Calculator
Calculate the sale price after a discount. Find the final price, amount saved, and effective discount rate.
Fuel Cost Calculator
Estimate fuel costs for road trips. Calculate based on distance, fuel efficiency, and gas prices.
Word Count Calculator
Count words, characters, sentences, paragraphs, and estimate reading time for any text.