LLM VRAM Calculator · free online ai tools
Estimate the VRAM needed to self-host an LLM from its parameter count and quantization, including KV cache. No install, opens instantly, works offline — data stays in your browser.
How to use LLM VRAM Calculator
- Open this page (or search “LLM VRAM Calculator” on www.258tool.com).
- Enter your input in the tool panel — results update instantly.
- Copy, download or save as needed; your data is stored locally on this device.
FAQ
Is LLM VRAM Calculator free?
Completely free. No sign-up, no account — open and use.
Is my data uploaded to a server?
No. All processing runs locally in your browser; data stays on your device.
Does LLM VRAM Calculator work offline?
Yes. After the first visit, add 258tool to your home screen and everything works offline.
Reference显存按 Transformer 推理通用模型估算:权重 = 参数量 × 每参数字节数;KV cache = 2 × 层数 × KV 头数 × head_dim × 序列长度 × 并发 × 每元素字节