How many thou are in one yard?

One yard equals exactly 36,000 thou. This is because a yard is 36 inches, and one thou is one thousandth of an inch: 36 x 1,000 = 36,000.

What is the difference between a thou and a mil?

They are the same unit - one thousandth of an inch. 'Thou' is the term preferred in British and some American machining contexts, while 'mil' is more common in American wire gauge and film thickness specifications. Both equal 0.0254 mm.

How does a thou compare to a millimeter?

One thou equals exactly 0.0254 millimeters, or conversely, one millimeter is approximately 39.37 thou. Many American machinists use thou instead of millimeters, though younger engineers increasingly work in metric.

Yards to Thou (yd to thou) Converter

1 yd = 36,000 thou

1 Yard equals 36,000 Thou (1 yd = 36,000 thou). Convert Yards to Thou with formula, table, and examples.

One yard equals exactly 36,000 thou (also known as mils). A thou is one thousandth of an inch (0.001 inches or 0.0254 mm), used extensively in American engineering and manufacturing for specifying tight tolerances, wire gauges, and coating thicknesses. Since one yard contains 36 inches, and each inch contains 1,000 thou, the conversion yields a clean 36,000.

How to Convert Yards to Thou

thou = yd × 36,000

Multiply the value in Yards by 36,000

Take your value in Yards
Multiply by 36,000
Read the result in Thou

Common Yards to Thou Conversions

Yards (yd)	Thou (thou)	Status
0.001 yd	36 thou
0.01 yd	360 thou
0.05 yd	1,800 thou
0.1 yd	3,600 thou
0.25 yd	9,000 thou
0.5 yd	18,000 thou
1 yd	36,000 thou
2 yd	72,000 thou
5 yd	180,000 thou
10 yd	360,000 thou
50 yd	1,800,000 thou
100 yd	3,600,000 thou
500 yd	18,000,000 thou
1,000 yd	36,000,000 thou
1,760 yd	63,360,000 thou

Good to Know About Yards to Thou Conversion

The thou is a distinctly Anglo-American unit that developed alongside the Industrial Revolution. British and American machinists adopted it because working in thousandths of an inch allowed decimal arithmetic in a system otherwise plagued by fractions. Today, the thou exists in an interesting cultural limbo - too small for everyday use, too imperial for the rest of the world, but absolutely indispensable in the American manufacturing shops where it was born.

Yards to Thou: What You Need to Know

Machinists work in thou every day: a typical precision machining tolerance might be plus or minus 1 thou (0.001 inches). Plastic sheeting thickness is commonly specified in thou - standard garbage bags are about 1 thou thick, while heavy-duty tarps might be 10 thou. The gap in a spark plug is usually set between 28 and 60 thou. Converting yards to thou is relevant in manufacturing contexts where raw material lengths in yards must be related to precision-critical dimensions.

What is a Yard? yd

An imperial unit of length equal to 3 feet or 0.9144 meters. Used in American football, golf, and fabric measurement.

Imperial Us-customary American football golf fabric

Learn more about Yard →

What is a Thou? thou

One thousandth of an inch (0.0254 mm). Also called a mil in the US. Used in engineering, manufacturing, and for measuring thin materials like plastic film.

Imperial engineering plastic film thickness wire gauges

Learn more about Thou →

Going the other way? Use our Thou to Yards converter.

Yards to Thou FAQ

One yard equals exactly 36,000 thou. This is because a yard is 36 inches, and one thou is one thousandth of an inch: 36 x 1,000 = 36,000.
They are the same unit - one thousandth of an inch. 'Thou' is the term preferred in British and some American machining contexts, while 'mil' is more common in American wire gauge and film thickness specifications. Both equal 0.0254 mm.
One thou equals exactly 0.0254 millimeters, or conversely, one millimeter is approximately 39.37 thou. Many American machinists use thou instead of millimeters, though younger engineers increasingly work in metric.

Non-Frequently Asked Questions About Yards to Thou

Questions nobody should ask - but someone did.

A human hair is roughly 2 to 3 thou thick (50 to 75 micrometers). So you could theoretically split a hair into 2 or 3 thou-thick slices, though actually doing so would require either a very expensive laser or a very steady hand. Hair-splitting in thou is about as literal as it gets.
No machinist in history has ever needed to say 'thirty-six thousand thou.' By the time you reach that scale, you have left the world of thou and entered the world of yards, feet, or inches. Thou is the unit of the very small; yards are the unit of the very walkable. They rarely meet.
It has a strong claim. The thou lives in machine shops, on factory floors, and in engineering workshops. It does not appear on highway signs or in cooking recipes. It is the measurement of people who make things with their hands and care about precision to one-thousandth of an inch - which is either admirable or obsessive, depending on your perspective.