Home improvement calculators can help you figure out how much of an item you'll need before you head to the store.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Whether you’re a college student enrolled in a calculus course or a professional accountant with your own ...

Planning a project with concrete? There's a simple tool that helps you avoid costly mistakes and get your measurements just ...

It’s quite likely that calculator manufacturers aren’t the biggest fans of the smartphone. For decades, students and professionals alike had used the trusty calculator whenever they needed to perform ...

If you like Nixie tubes and/or DIY calculators, checkout this interesting talk from the HP Handheld Conference in Orlando last month by [Eric Smith] from Brouhaha and [John Doran] from Time Fracture.