Metre is the standard spelling of the metric unit for length in nearly all English-speaking nations, the exceptions being the United States and the Philippines which use meter.
Measuring devices … See more

Universal measure: the metre linked to the figure of the Earth
Galileo discovered gravitational acceleration to explain the fall of bodies at the surface of the … See more

SI prefixes can be used to denote decimal multiples and submultiples of the metre, as shown in the table below. Long distances are usually … See more

Within this table, "inch" and "yard" mean "international inch" and "international yard" respectively, though approximate conversions in the left column hold for both international and … See more

The etymological roots of metre can be traced to the Greek verb μετρέω (metreo) ((I) measure, count or compare) and noun μέτρον (metron) (a measure), which were used for physical measurement, for poetic metre and by extension for moderation or avoiding extremism … See more

In France, the metre was adopted as an exclusive measure in 1801 under the Consulate. This continued under the First French Empire until 1812, when Napoleon decreed the … See more

• ISO 1 – standard reference temperature for length measurements
• Metric prefix
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