Authors Behind Callculation

The engineers, developers, and writers who design our calculators, verify the formulas, and write the explanations behind every tool we publish.

Mehmet Demiray

Metallurgical & Materials Engineer · Software Developer · Bug Bounty Hunter

Founder of Callculation. Materials engineer turned software developer; security researcher with bug bounty work on HackerOne, Bugcrowd, and a 2021 Microsoft MSRC acknowledgment.