Calculators

This page links you to web-calculators that you can use to check your work. Note that it is better to solve problems without the web-calculators and then use them to check your work, because setting up the problem by hand on paper, doing the complete unit analysis, is the only way to build intuition for energy analysis problems.

Instructions for using calculators

The calculators are based on downloadable Excel spreadsheets contained in a single file. Therefore numbers must be input in a style recognized by Excel. Specifically, to input numbers in scientific notation use 'E' to represent multiplication by powers of 10.

Examples:

• 2.3 x 10⁷ must be entered as 2.3E7, with no additional spaces
• 6.692 x 10^-6 must be entered 6.693E-6, with no additional spaces

Output notation follows the same rules.

Web Calculators to Test Your Work

• Energy Unit Converter
• Carbon Emissions Calculator
• Power Plant Energy Use Calculators

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