comfyui-tile-calculator

ComfyUI Tile Calculator

A simple ComfyUI custom node that calculates tile dimensions for tiled upscaling workflows.

What it does

Given an input image, magnification (zoom) factor, and desired number of tiles, this node calculates the optimal tile dimensions using the formula:

tile_dimension = ceil((original_dimension × zoom) / tiles_per_dimension)

The original image is passed through unchanged, making it easy to integrate into existing workflows.

Installation

Option 1: ComfyUI Manager

Search for "Tile Calculator" in the ComfyUI Manager and install.

Option 2: Git Clone

cd ComfyUI/custom_nodes
git clone https://github.com/jchiotaka/comfyui-tile-calculator.git

Option 3: Manual

1. Download this repository
2. Extract to ComfyUI/custom_nodes/comfyui-tile-calculator
3. Restart ComfyUI

Usage

Find the node at: Add Node → image → utils → Tile Calculator

Inputs

| Input | Type | Description | |-------|------|-------------| | image | IMAGE | The input image | | tiles_per_width | INT | Number of tiles horizontally (1-16) | | tiles_per_height | INT | Number of tiles vertically (1-16) | | zoom | FLOAT | Magnification factor (0.1-8.0) |

Outputs

| Output | Type | Description | |--------|------|-------------| | image | IMAGE | Pass-through of the input image | | tile_width | INT | Calculated tile width in pixels | | tile_height | INT | Calculated tile height in pixels |

Example

For a 1024×768 image with:

• zoom: 2.0
• tiles_per_width: 2
• tiles_per_height: 2

Results:

• tile_width: ceil((1024 × 2) / 2) = 1024
• tile_height: ceil((768 × 2) / 2) = 768

License

MIT License - see LICENSE for details.