Technology Calculator Guides
Articles that explain formulas, edge cases, and interpretation for technology calculators. Each guide links to the relevant tools so you can apply what you learn.
Jul 22, 2026
Password Entropy: Policy, Length Ladder, and Local CSPRNG
Treat password strength as length × log2(pool size). Compare Everyday 16 to a PIN sketch, climb a fixed-pool length ladder, and generate locally with a CSPRNG. Policy shares only; secrets stay off the URL.
Jul 22, 2026
Download Time: Ideal Clock vs Effective Throughput
Convert Mbps to MB/s, run an ideal transfer clock, then derate for real utilization. Worked game and document examples plus a speed ladder for the same file.
Jul 22, 2026
No-Background PNGs: White Cleanup vs Full Cutout
Choose white-studio cleanup or a full transparent cutout, run a fringe quality checklist, and match exports to marketplace, design, and social channels. Browser remove-background loops beat Photoshop for most SKU drafts.