Online Calculators

GIGAcalculator features hundreds of online calculators and converters that can help you in many daily tasks that require calculations to complete. Start by picking from one of our most popular ones, by browsing our categories, or by searching for a specific tool below.


Our tools are developed with rigor and offer plenty of educational information on how to make best use of them. Should you find yourself in need of information on any of the input fields just consult the question mark next to it's label for relevant contextual help. Output and assumptions behind the calculations are typically explained in the supporting text.

Popular online calculators

Popular online converters

Popular random generators

Categories of online calculators

Categories of online converters

Featured in

Our calculators have been featured in multiple scientific papers and articles published in high-profile science journals by:

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GIGAcalculator has also been featured in:

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