Proportion Overlay Tool

Upload an image and overlay classic drawing grids, calibrated Loomis guides, Reilly rhythms, and a measuring tool.

Image

Recommended: straight-on portrait for most accurate calibration.

Grids

Horizontal thirds

Vertical fifths

Fifths use default full image width. Not calibrated

Golden ratio (φ) lines

Guide opacity 0.80

Head Guides

Loomis landmarks

Reilly rhythms

Loomis/Reilly use approximate full-image head until calibrated. Not calibrated

Measuring Tool

Enable measuring tool

Click-drag to measure. Hold Shift to lock horizontal/vertical. Shows length (px) and angle (°).

Export

Loomis Calibration Nose-Based Fifths Reilly Rhythms Measuring Tool

Loomis: Click "Calibrate hairline → chin" then click hairline and chin.
Fifths: Click "Calibrate fifths (nose width)" then click left & right edges of the nose.
Measuring: Enable, then click-drag. Hold Shift for horizontal/vertical.