Ahsan Khan
Ahsan Khan is the founder of Calculator Porch and writes, builds and reviews every calculator on the site: the formulas, the code, the worked examples and the explanations. Each calculator is checked against hand-worked examples and cited sources before it's published, and again whenever its data is refreshed.
Calculators
13 calculators across math, statistics, everyday life, construction, finance, energy & solar and pets. See the full list on the all calculators page.
How the work is checked
The methodology page explains the formulas and test cases, and the editorial policy explains how sources are chosen and how corrections are handled.
Contact
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