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
- Download this repository
- Extract to
ComfyUI/custom_nodes/comfyui-tile-calculator - 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.