Math & Calculators

A collection of calculators for the numbers you need to check occasionally but don't want to do by hand — BMI, age between two dates, loan repayments, GCD and LCM for a homework problem, the area of a circle. There's also a general-purpose unit converter covering length, weight, digital storage, and data transfer rates, so you're not hunting down a separate page for each conversion type. Results update as you type, and everything is worked out client-side, so there's no lag waiting for a server round-trip on something that should be instant.