KV Cache & Context Length VRAM Calculator

Calculate how much VRAM an LLM's KV cache consumes at any context length.

See the model-weights + KV-cache + overhead breakdown, a total-VRAM-vs-context curve against common GPU capacities, and the max context that fits per GPU.

All math runs in your browser — nothing is uploaded.

Interactive Calculator

Use this calculator to analyze your finances and make informed decisions.

Enter your values below to see personalized results.

From the same team

Turn your GPU into an OpenAI-compatible API endpoint

Wide Area AI routes your LLM API calls to your own hardware over a Cloudflare Tunnel — free local inference with edge caching and automatic cloud failover. Works with any OpenAI SDK.

Start routing — free