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Mm to Cm - How to Convert Millimeters to Centimeters
Both millimeters (mm) and centimeters (cm) are metric units of length. The metric system, widely used around the world, makes conversions simple because it is based on powers of 10. For seamless unit switching and instant accuracy, give our intuitive Length Converter a try!
To convert mm to cm, use this formula:
Centimeters = Millimeters ÷ 10
For example, to convert 50 mm to centimeters:
50 ÷ 10 = 5 cm
This means that 1 centimeter equals 10 millimeters.
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Interesting Facts
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The thickness of a credit card is about 0.76 mm.
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A human hair can be as thin as 0.02 mm to 0.18 mm.
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The smallest handwriting ever recorded measured just 0.05 mm per letter, written by a scientist using an ion beam.
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Raindrops typically range from 0.5 mm to 4 mm in diameter.
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The world's thinnest gold sheet is 0.47 nm thick, meaning it would take 2 million sheets stacked together to equal 1 mm.
The Tiny Precision of Swiss Watchmaking
Swiss watchmakers are famous for their precision craftsmanship, where millimeters and even fractions of a millimeter make a difference. High-end watches, such as those from Rolex or Patek Philippe, are assembled with extreme accuracy, ensuring that every gear, spring, and component fits perfectly.
One of the smallest parts in a mechanical watch, the hairspring, is usually around 0.02 mm thick—thinner than a human hair. A minor miscalculation of just 0.1 mm in a gear’s size could cause a watch to lose minutes per day. This is why Swiss watches are tested for accuracy down to fractions of a second, proving that millimeter-level precision is essential in luxury timepieces.
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Conclusion
To convert mm to cm, simply divide by 10. This simple conversion is used in design, engineering, and daily measurements. Whether you're measuring small objects, designing a watch, or crafting intricate models, understanding millimeters and centimeters is essential for accuracy and precision. Ready to handle all your unit needs in one place? Check out our powerful Conversion tool and streamline your workflow!
