Fear & Greed Index 0-100
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
About this calculator
The Fear & Greed Index measures crypto market sentiment on a 0-100 scale (0: extreme fear, 100: extreme greed). It combines volatility, trading volume, and social metrics (like tweets/forums). Scores near 0 suggest panic, while 80+ indicates excessive optimism.
The formula weights volatility (signals uncertainty) and volume (reflects interest) against social data (captures non-quantifiable sentiment). No fixed formula exists; weights vary by platform. For example, a surge in positive tweets could boost the score even with high volatility.
Use it to identify entry points (0-20) or exits (80-100), but not alone. Combine with technical and fundamental analysis. Caution: during severe crashes or bubbles, the index may lag due to delayed social data, misrepresenting true panic or euphoria.
This index has limits. It doesn't capture macroeconomic factors or regulatory news. In highly volatile markets, social metrics might be skewed by artificial hype. Use it as a supplement to avoid decisions driven solely by crowd psychology.
Frequently asked questions
How does the index calculate fear and greed?
It examines volatility (price swings) and volume (active trades), but its unique aspect is social metrics like posts and sentiment. Scores below 30 indicate fear, above 70 greed.
Why trust social media data?
These metrics capture perceptions not visible on technical charts. For example, a token might rise 20% with normal volume, but if tweets mention 'scam', the index warns of hidden risks.
Does the index predict crashes or gains?
It doesn't anticipate events, only indicates market states. A score of 95 might follow 48 hours of gains, but doesn't guarantee the trend will continue.
What's its relevance for beginners?
Helps avoid emotional decisions. If a new user sees the index at 85, they might question whether they're entering due to opportunity or herd mentality.