⚡ Mass-Energy Calculator

Convert mass into pure energy using Einstein's Theory.

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Speed of light (c) is constant: ~300,000,000 m/s

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Einstein's Formula Explained

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The world's most famous equation is E = mc².

• E = Energy measured in Joules
• m = Mass measured in Kilograms
• c = Speed of light (approx. 299,792,458 m/s)

This formula explains why a tiny amount of matter (like in a nuclear reaction) can release a massive amount of energy.