Greek Feet to Millimeters (pous to mm)

1 Greek foot (Olympic) equals 320 millimeters exactly.

1 Greek foot (Olympic) = 320 millimeters

How to convert Greek feet to millimeters

To convert Greek feet to millimeters, multiply the number of Greek feet by 320. This factor is exact. To go the other way, multiply millimeters by 0.003125.

millimeters = Greek feet × 320

Example: 10 Greek feet = 3,200 millimeters.

Approximate value. Standards for the Greek foot (Olympic) varied by place and period, so this converter uses the most commonly cited value. Treat results as estimates, not exact figures.

About these units

Greek Foot (Olympic) (pous)

Ancient GreekHistorical unit (no longer in standard use)Approximate value

One 600th of the Olympic stadion, about 32.0 cm. Greek feet differed by city; the Attic foot was nearer 29.6 cm and the Aeginetan about 33.3 cm.

Greek pous simply means foot, and the plural is podes. Every city-state kept its own foot, so the word never named a single length. Aegina used a foot of about 333 mm, Athens one of about 296 mm, and a general-purpose table gives 308.2 mm. The value used here, roughly 32.0 cm, is the Olympic foot, which is derived by dividing a stadion of about 192 m by 600.

That makes the Olympic foot a reconstruction and not a measured object, and it moves with the stadion figure chosen. Scholars have also proposed stadia near 157 m, 185 m, 196 m and 209 m, implying feet from about 26 to 35 cm. Within a Greek system the foot divided into 16 daktyloi, or fingers, and 100 feet made a plethron, a little over 30 m in the standard table. A foot of about 32 cm is close to the modern English foot of 30.48 cm, only a little longer.

1 Greek foot (Olympic) = 0.32 meters (approximately).

Sources: Wikipedia: Ancient Greek units of measurement; Wikipedia: Stadion (unit)

Millimeter (mm)

Metric (SI)Current unit

One thousandth of a meter. Used in engineering, manufacturing and rainfall measurement.

Carl Friedrich Gauss put the millimeter at the base of his 1832 proposal for absolute units, pairing it with the milligram and the second, although the centimeter-based CGS system later won out among scientists. The name combines the metric prefix milli-, from the Latin for one thousand, with the meter. Since 1983 a millimeter has been tied to the speed of light: it is the distance light covers in 1/299,792,458,000 of a second.

Millimeters are the language of fine mechanical work. Standard rulers are divided into them, digital calipers commonly read to 0.01 mm, and mechanical pencil leads come in 0.5 and 0.7 mm. Copy paper is about 0.1 mm thick, and a thin hair, at 0.02 to 0.04 mm across, is close to the smallest thing the naked eye can see. A wave with a frequency of 300 GHz has a wavelength of 1 mm. An inch is exactly 25.4 mm. One trap for readers in the United States is that mil there traditionally means a thousandth of an inch, not a millimeter.

1 millimeter = 0.001 meters (exactly).

Sources: Wikipedia: Millimetre; Wikipedia: Centimetre-gram-second system of units; NIST Guide to the SI, Appendix B.8: conversion factors

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