Infact
94 / 100
True

Sound travels 4 times faster in water than in air.

Infact verdict: True (94/100).

The claim that sound travels four times faster in water than in air is supported by multiple reliable sources. Sound travels at approximately 1,480 meters per second in water compared to 343 meters per second in air, confirming the claim's accuracy. This difference is due to water's higher density and lower compressibility compared to air.

September 18, 2026 Language: en 1 claim analyzed
How is this score determined? →

Individual claims

94
True Science
Sound travels 4 times faster in water than in air.
Multiple high-quality sources confirm that sound travels approximately four times faster in water than in air. The speed of sound in water is about 1,480 meters per second, while in air it is about 343 meters per second. This is due to water's higher density and lower compressibility.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 95
Web Consensus Weight 40
Source Quality Score 90
Source Quality Weight 20
Llm Reasoning Score 85
Llm Reasoning Weight 40
Llm Reasoning Score Raw 85
Weighted Total 94
Evidence Summary 3 web sources confirm sound travels 4 times faster in water than in air.

Related fact-checks

Check any claim, instantly

Free AI-powered fact-checking — on every platform you already use.