Calculators are battery-powered, solar-powered, or a hybrid of both—and a few higher-end models are rechargeable. We recommend battery-powered calculators for most people, ...

Calculators haven't always been accurate, but engineers, scientists and accountants have relied on them to make their lives easier for over 2,000 years.

Smartphones double as calculators and are attached to our hip 24/7. Does the ubiquitous access to calculators affect our ability to do maths in our heads like we used to?

Miami University provides Student Aid Calculators to assist in early financial planning for college. These calculators offer a preliminary estimate of federal and institutional financial aid ...

Calculators are most useful, they said, when woven into teaching materials. Ministers banned the use of calculators in national maths tests for 11-year-olds in England from 2014.