How do I use this to plan my workout?

You can use `calculate_target_weight` by providing your estimated 1RM, your target RPE, and the number of reps you want to perform to get your target weight.

What is the difference between RPE and RIR?

RPE is the Rating of Perceived Exertion, while RIR is Reps in Reserve. You can use `get_rep_reserve_info` to convert between them instantly.

Can I adjust my weights if I am feeling tired?

Yes, use `adjust_for_fatigue` to reduce your target weight based on a fatigue factor to ensure you still hit your target RPE.

RPE to Weight Converter MCP Connector for Claude

A+

Convert RPE to training weight and vice versa using standardized intensity tables.

4 tools Official Updated Oct 1, 2026 Official Vinkius Partner

More Details Connect to Claude

This MCP server provides strength athletes with precise tools to translate perceived exertion into actionable training loads. By using standardized intensity tables, lifters can use calculate_target_weight to find the exact weight needed for a specific RPE and rep count, or estimate_rpe to predict how heavy a weight will feel. It also includes adjust_for_fatigue to account for strength loss and get_rep_reserve_info to quickly translate between RPE and Reps in Reserve (RIR).

rpeweightliftingpowerliftingtraining-loadstrength

Connect to Claude

Subscribe on Vinkius, then add this connector to Claude.ai or Claude Code.

① Claude.ai (web app)

Go to Settings → Connectors → Add custom connector
Paste the MCP endpoint URL below

https://edge.vinkius.com/vk_preview_dGmxKd1mUmAhcFSz24Nv36vICgIuY5BThlkMldmy/mcp

② Claude Code (terminal)

claude mcp add --transport http rpe-to-weight-converter https://edge.vinkius.com/vk_preview_dGmxKd1mUmAhcFSz24Nv36vICgIuY5BThlkMldmy/mcp

③ Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "rpe-to-weight-converter": {
      "url": "https://edge.vinkius.com/vk_preview_dGmxKd1mUmAhcFSz24Nv36vICgIuY5BThlkMldmy/mcp"
    }
  }
}

Get full access on Vinkius

The preview token above works for testing. Powered by Vinkius.