Miles to Yards Converter

The international mile is exactly 1,609.344 meters, or 1.609344 kilometers. It descends from the Roman mile of a thousand paces and remains the standard road distance in the United States and the United Kingdom.

Road signs and speed limits, distance markers on highways, running and cycling events and aviation track distances are quoted in miles in those countries. Nautical miles are separate and longer.

Since the mile is defined as 1,609.344 meters exactly, converting to kilometers or feet is exact arithmetic; only the printed result is rounded. A value converted to kilometers and back can return with a changed last digit.

The common error is using a statute mile where a nautical mile is meant, which understates the intended distance by about thirteen percent. Miles also measure length, not area or speed.

Miles measure road distance, kilometers do the same on metric roads, and nautical miles measure sea and air distance. A nautical mile is longer than a statute mile, so a flight quoted in the wrong one is misread by roughly thirteen percent.

The yard is exactly 0.9144 meters, three feet or thirty-six inches. It is a defined multiple of the meter, not an independent standard. Its value was fixed by the same international agreement that defined the foot and the inch.

Fabric, carpet and some flooring are still sold by the yard, and the chain and furlong used in land and horse racing are built from yards. American football is measured in yards.

Conversions run through the exact metric value, so a yard in meters is exactly 0.9144 and in centimeters exactly 91.44. Printed results are rounded, which can alter the final digit on a conversion there and back.

A yard is not a meter, though the two are close enough that a rough estimate will look plausible on fabric. Buyers who order yards and measure in meters can come up short.

A yard is three feet, a little less than a meter. Fabric is sold in yards in some markets and in meters in others, so a price per yard and a price per meter are not comparable, differing by about nine percent.