A fully interactive calculator node for ComfyUI. You can use it standalone for quick calculations without connecting it to anything, or optionally wire it into your workflow—build expressions visually, connect inputs as variables, and output the result when the workflow runs.

Features

Basic & Scientific modes — toggle between standard arithmetic and trig/log/power functions
Variable inputs (A, B, C) — optional float inputs (scalar or list) you can wire from other nodes and reference in expressions; lists enable sine waves and temporal scheduling
Three outputs — result_float, result_int, result_string
Live preview — expressions without variables evaluate instantly on =; expressions with variables evaluate server-side when queued

Installation

Clone into your ComfyUI custom_nodes directory and restart:

cd ComfyUI/custom_nodes
git clone https://github.com/ryanontheinside/ComfyUI-CalculatorX.git

No additional dependencies required.

Other ComfyUI Projects

ComfyUI_RyanOnTheInside — Main node pack
ComfyUI_ProfilerX — Performance profiling
ComfyUI_ControlFreak — Universal MIDI & gamepad mapping