Convert meters to yards

メーター

定義
A meter (symbol: m) is the SI’s fundamental unit of length, defined as the distance light travels in 1⁄299 792 458 of a second. This constant-based definition, refined in 1983 and adjusted in 2019 to align with the modern second, ensures unwavering global consistency.

起源

• 1793: Conceptualized as one ten-millionth of the Earth’s quadrant (Equator → North Pole).

• 1889: Anchored to an international platinum-iridium prototype bar at 0 °C.

• 1960: Recast in terms of krypton-86 emission wavelengths.

• 1983-2019: Tied directly to the speed of light.

現代の使用
Meters are ubiquitous—from scientific research and engineering to everyday measurements of distance and height. While nations like the United States still use customary units for many applications, meters dominate international trade, construction specs, and most global standards.

ヤード

定義
A yard (symbol: yd) is an Imperial and U.S. customary unit of length fixed at exactly 0.9144 meters since 1959. It equals 3 feet or 36 inches.

起源
The term “yard” likely traces back to Old English ゲルド, meaning a rod or measure of cloth. Although early English yards varied, post-1959 international agreement standardized the yard to eliminate regional discrepancies.

現代の使用
Yards are common in sports field layouts (football, soccer), cricket pitch dimensions, and UK road signs for short distances. In the U.S., yards still appear in real estate listings and informal distance references.

Meter → Yard Conversion Table

変換方法

• 1 m = 1.0936132983 yd

• 1ヤード＝0.9144メートル

例

Convert 15 m to yards:

15 m × 1.0936132983 yd/m = 16.404199475 yd