DISCAS (Display Image Size) Calculator

Choose BDM (Basic Decision‑Making) for general messaging or ADM (Analytical Decision‑Making) when viewers must inspect fine detail. Enter the values you know, pick what you want to solve, and results update live.

BDM explained

BDM uses %‑Element Height. Common presets:
3 % = lecture slides • 2 % = financials • 1.5 % = dense spreadsheets.

ADM explained

ADM replaces %EH with vertical pixel resolution (720 / 1080 / 1440 / 2160). Use it for CAD, medical imaging, or anything where users must read small detail.


Quick reference (%EH & Closest Viewer)
Content type %EH preset Closest viewer ≈ 1.5 × IH
Lecture / key bullets3 %1.5 × IH
Standard PPT2.5 %1.5 × IH
Financial tables2 %1.5 × IH
Dense spreadsheets1.5 %1.5 × IH
Fine CAD (ADM)1 %1.5 × IH