LLM calculator

A calculator to estimate the potential size of an LLM, as well as the minimum required RAM (Random Access Memory) for running the model.

By inputting the number of model parameters, for example, 3 billion for models like Gemma3:4b, and the number of bits per parameter, such as 2, 4, 6, or 8 bits for quantized models, and 16 or 32 bits for unquantized models, the approximate disk space required to install the model is calculated (without accounting for the size of the runtime environment (Ollama, LM Studio, etc.)). The calculator includes an input for an additional coefficient "C" to estimate the extra model file size needed for internal data. The calculator also does not estimate the required RAM for multimodal models, which typically load only a portion of their parameters into RAM.