Infact
66 / 100
Mostly True

The text states that the hardest bone in the human body is the femur.

Infact verdict: Mostly True (66/100).

The claim that the femur is the hardest bone in the human body is supported by evidence indicating it is the strongest bone, capable of supporting significant weight and typically only breaking under severe trauma. However, the term 'hardest' is not explicitly confirmed in the evidence, which focuses on strength rather than hardness. Therefore, while the femur is indeed the strongest bone, the claim about it being the hardest is not directly substantiated by the evidence provided.

July 31, 2026 Language: en 1 claim analyzed
How is this score determined? →

Individual claims

66
Mostly True Science
The hardest bone in the human body is the femur.
The evidence supports that the femur is the strongest bone in the human body, capable of supporting up to 30 times the body's weight and usually breaking only from severe trauma. However, the evidence does not explicitly confirm it as the 'hardest' bone, which is a slightly different attribute. Therefore, while the femur is the strongest, the claim about it being the hardest is not directly substantiated by the evidence provided.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 75
Web Consensus Weight 40
Source Quality Score 70
Source Quality Weight 20
Llm Reasoning Score 65
Llm Reasoning Weight 40
Llm Reasoning Score Raw 65
Weighted Total 66
Evidence Summary 2 web sources confirm the femur is the strongest bone, but not explicitly the hardest.

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