Energy Unit Calculators

Energy units range from the very small to the very large, and different industries/countries measure energy in different ways. This is an overview of conversion tools for energy (work), power and other units:

• International Energy Agency's unit convertor
• WolframAlpha, a computational knowledge engine that accepts queries in natural language
• Process Associates of America unit convertor for energy and much more
• unitconversion.org
• Digital Dutch and much more
• NIST reference on constants, units and uncertainty.