Miles to Toises (mi to toise)

1 mile equals 825.7126827 toises (rounded).

1 mile = 825.7126827 toises

How to convert miles to toises

To convert miles to toises, multiply the number of miles by 825.7126827. The factor is rounded to 10 significant digits. To go the other way, multiply toises by 0.001211075016 (rounded).

toises = miles × 825.7126827

Example: 10 miles = 8,257.126827 toises.

About these units

Mile (mi)

US & ImperialCurrent unit

5,280 feet or 1,760 yards, exactly 1,609.344 meters. This is the statute (international) mile used on US and UK roads.

A thousand paces gave the mile its name. It descends from the Latin mille passus, the Roman mile, by way of Old English mil and Middle English myle. For centuries after Rome, miles of many lengths coexisted; a sixteenth-century Mercator map, for example, shows small, medium and large Flemish miles on a single scale bar. The English statute mile was fixed by an Act of Parliament under Elizabeth I in 1593, which declared that a mile contains eight furlongs, or 5,280 feet.

The 1959 international yard and pound agreement made that mile exactly 1,609.344 meters. A slightly longer US survey mile, about 1,609.347 meters, lingered in American land surveys and was slated for retirement from 1 January 2023. Today the mile is the road unit of the United Kingdom, the United States, Liberia and Myanmar, along with several territories such as the Bahamas, Belize, Guam and the US Virgin Islands. In Canada it survives chiefly in rail transport and horse racing.

1 mile = 1,609.344 meters (exactly).

Sources: Wikipedia: Mile; Wikipedia: Foot (unit); NIST Guide to the SI, Appendix B.8: conversion factors

Toise (toise)

French (Ancien Régime)Historical unit (no longer in standard use)

Six pieds du roi, about 1.949 m. Used to define the length of the meter: the first metric standard was based on a ratio to the toise.

Latin tensa brachia, meaning outstretched arms, is the root of toise, and the unit began as a fathom-like span of a man's reach. Under the Ancien Régime it was fixed at six pieds du roi, 72 pouces or 864 lignes, which equals about 1.949 metres by the 1799 definition.

Its physical standard was an iron bar set into a wall of the Grand Châtelet in Paris, in place before 1394. After the bar bent, a replacement made in 1667 was about half a percent shorter. In 1735 two new geodetic standards were calibrated against it, and one of them, the Toise of Peru, took part in the Spanish-French Geodesic Mission and became the official standard in 1766.

The toise also shaped the metre. The 1799 metre was defined as 443.296 lignes, or 3 pieds and 11.296 lignes of the Toise of Peru, which matches 13,853 parts of 27,000 of a toise. Later French usage varied: from 1812 to 1840 the customary toise was set to exactly 2 metres, and other countries had their own toises, such as about 1.8 metres in Switzerland.

1 toise = 1.94903631 meters (approximately).

Sources: Wikipedia: Toise; Wikipedia: Pied du roi; Wikipedia: Traditional French units of measurement

Related conversions

See all length units.