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About Calc Drawer

Calc Drawer gathers practical calculators for recurring decisions. It is a static site run by an individual maker.

What we build

Calc Drawer focuses on tools that show a trajectory over time, not just a single output. Instead of stopping at one number, the goal is to let timelines and comparisons react immediately as inputs change.

Areas we cover

  • Time — dates, D-Day, age, and schedule planning
  • Body — sleep, weight, pace, and health-related estimates
  • Money — compound growth, inflation, and saving targets
  • Learning — study pacing and exam scheduling

Operating principles

  • No hype. Each tool should make its formula and assumptions visible.
  • Lightweight. No login or tracker should be required to run a calculation.
  • Long-term maintenance. The goal is to keep adding durable tools over time.

Technology

The site is built with Next.js static export, React, and TypeScript. There is no server-side calculation path. Everything runs in the browser. See the Privacy Policy for details.

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