Blog

Short guides. Plain language. Each one links to its calculator.

How much to tipA short guide to tipping: common percentages, when to tip more, and how to split a bill fairly.
Kg to lbs, and lbs to kgHow kilogram to pound conversion works, with a table of common weights.
How GPA worksHow the 4.0 GPA scale works, how credits weight each course, and how a GPA is computed.

Every post links back to its calculator. All calculations happen in your browser.