The findings add to the speculation that the famous aviator did not crash in the ocean but landed safely on an atoll.
In an attempt to solve the mystery of Earhart's disappearance, the US-based International Group for Historic Aircraft Recovery re-examined evidence of a partial skeleton found in 1940 on a tiny atoll Nikumaroro which is part of the nation of Kiribati.
Despite speculation in 1940 that the remains were those of Earhart, British authorities rejected the claim after a doctor concluded that the bones were from a male.
The bones were lost but the doctor's files were uncovered in 1998.
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The researchers have now re-examined the doctors findings which included the skeletal measurements, which showed that the length of the forearm was larger than average.
It compared the ratio of the skeleton's upper and lower arm bones to that from a clear photograph of Earhart standing in a short-sleeved top and concluded that the two ratios were virtually identical, 'The Telegraph' reported.
Accompanied by Fred Noonan, her navigator, she planned to fly to Hawaii before completing her journey in California.