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Calculators » Conversion » Speed » Km per hour and Speed of light in vacuum

Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can convert speed in different units of measurement, viz., from km per hour to speed of light in vacuum and vice-versa.

Android: Use this speed converter offline with our all-in-one calculator app.

**Conversion formula**: 1 c = 1079252848.8 km/h

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