Categories
🧮 Calculator
Calculation tools for everyday life and business, such as unit conversion, percentages, sales tax, and loans.
Tools in this category
Convert between units of length, weight, and temperature.
Calculate a new width or height while keeping the original aspect ratio.
Calculate percentages using three common patterns.
Convert between prices excluding and including tax, and calculate the tax amount.
Calculate the greatest common divisor (GCD) and least common multiple (LCM) of two or more integers.
Calculate the mean, median, variance, standard deviation, and more for a set of numbers.
Calculate exact age, days since birth, and days until the next birthday from a birth date and a reference date.
Calculate BMI, weight category, and ideal weight from height and weight.
Calculate the monthly payment from a loan amount, annual rate, and term.
What you can do here
Everyday calculations
Convert units of length, weight, and temperature, and calculate percentages, consumption tax, and age.
Money and health
Calculate monthly loan payments, BMI, and ideal weight.
Math and statistics
Find the GCD and LCM, and calculate statistics such as mean, median, variance, and standard deviation.
Screens and images
Calculate sizes that keep a given aspect ratio.
Common use cases
Work out amounts including consumption tax when preparing quotes and invoices
Estimate monthly payments and the total repayment before taking out a loan
Find dimensions that keep the aspect ratio when resizing images or video