# Decision Weight Score Calculator

> Rate a decision's reversibility, impact and uncertainty to get its Decision Weight Score (1 to 10) and how much time and process it deserves. Free.

Canonical: https://mentarium.io/tools/decision-weight-score.md

Tool · Mentarium framework

Most decisions deserve less thought than they get, and a few deserve much more. The Decision Weight Score (DWS) tells you which is which: round(R × I × U ÷ 27 × 10), from 1 to 10.

## What to do with the score

- **1 to 3, Decide fast:** Decide in under 10 minutes. Pick a good-enough option and move on.
- **4 to 6, Light loop:** Give it a light pass of the Decision Loop, about an hour: frame it, map the options, run one or two models, write your prediction.
- **7 to 10, Full loop:** Run the full Decision Loop, do a pre-mortem, write a journal entry with your prediction and confidence, and sleep on it for a night before you commit.

The heavier the decision, the more of the [Mentarium Decision Loop](https://mentarium.io/decision-making) it gets. One-way doors score high on reversibility by definition; see [reversible vs irreversible decisions](https://mentarium.io/mental-models/reversible-decisions) and [how to make a hard decision](https://mentarium.io/decision-making/how-to-make-a-hard-decision).

 Mentarium Decision Coach · free

Use this with your AI

Connect the free Decision Coach to Claude or ChatGPT and it walks you through the Decision Loop, picks the right Model Stack and runs the Bias Radar on your reasoning.

 [Connect it free](https://mentarium.io/coach)