Convert mm to cm

ミリメートル

定義
A millimeter (symbol: mm) is an SI unit of length equal to one-thousandth of a meter (0.001 m). It corresponds to the distance light travels in 1 / 299 792 458 000 of a second, ensuring exactness through the meter’s constant-based definition.

起源
接頭辞 ミリ (ラテン語 ミル, “thousand”) denotes 10⁻³ in the metric system. While the meter itself has evolved—from a platinum-iridium bar to a light-based standard—the fixed relationship (1 mm = 0.001 m) remains unchanged.

現代の使用
Millimeters are indispensable for precise measurements: engineering tolerances, technical drawings, machining parts, and any application requiring fine granularity.

センチメートル

定義
A centimeter (symbol: cm) is an SI unit of length equal to one-hundredth of a meter (0.01 m). It’s a convenient subdivision of the meter for everyday and scientific measurements alike.

起源
Formed by combining the センチ prefix (Latin センタム, “hundred”) with “meter,” the centimeter is part of the metric system’s decimal structure, making unit conversions straightforward.

現代の使用
Centimeters are used globally for measuring dimensions too small for meters but larger than millimeters—heights on medical charts, small object dimensions, classroom rulers, and more.

Millimeter → Centimeter Conversion Table

変換方法

• 1 mm = 0.1 cm

• 1 cm = 10 mm

例

To convert 15 mm to centimeters:

15 mm × 0.1 cm/mm = 1.5 cm