Mechanical Engineering Library Guide

Free online calculators. Standard and scientific calculators, plus a large variety of financial, fitness, and specialty calculators.

Online engineering reference that includes calculators, unit conversion, formulas, and more.

Calculators, converters, and other free tools and information for Engineers.

Vendor directory and specs for industrial products and components. Requires a free account to search.

Search scientific and technical content published by the IEEE. Includes some open access articles.

An online directory of U.S. manufacturers by product.