ComfyUI Resolution Helper

Pick a preset, flip orientation, or enter custom sizes. Use the slider to scale in 16‑pixel steps while preserving aspect as closely as possible. Copy your final width/height straight into your workflow.

Presets & Orientation

Resolution Preset

Includes common video and AI sizes. Add your own below.

Orientation

Custom Size

Custom Width (px)

Custom Height (px)

Scale (16px steps)

Scale

10% 100% 300%

Lock Aspect Ratio Snap to 64 as well

Fine Tuning

Output Width

Output Height

Edit these directly (16‑step). If aspect locking is on, the partner value will follow.

Preview & Output

Current Size

—

Aspect Ratio

—

Megapixels

—

Model‑Friendly

multiples of 16

Copy‑ready Outputs

Tips: many models like dimensions divisible by 16 (sometimes 64). Enable Snap to 64 if your pipeline prefers stricter blocks.

720p · 1280×720 1080p · 1920×1080 Square · 1024×1024 SDXL‑ish · 2048×1152