thou
Lengthexact by definition
A thou is one thousandth of an inch, exactly 25.4 micrometres. It is the working precision of machining and sheet metal: a general-purpose turned tolerance is a few thou, a feeler gauge set steps in thou, and paint film thickness and plastic sheeting are specified in them.
Watch out: The same length is called a mil in the wire, plastics and coatings trades, which collides badly with the angular mil of artillery and with the millimetre. "Twenty mil" of polyethylene is 0.5 mm; "twenty mil" on a gun sight is an angle. This site keeps the machinist's name to avoid the ambiguity.
| 1 | 0.0000254 |
One thou in every length unit
| 1.57153e+30 | Planck length (lP) | |
| 25,400,000,000 | femtometer (fm) | |
| 25,400,000 | picometer (pm) | |
| 479,990 | bohr radius (a0) | |
| 254,000 | angstrom (Å) | |
| 25,400 | nanometer (nm) | |
| 25.4 | micrometer (μm) | |
| 1 | thou (thou)this unit | |
| 0.072 | point (pt) | |
| 0.0254 | millimeter (mm) | |
| 0.006 | pica (pc) | |
| 0.00254 | centimeter (cm) | |
| 0.001 | inch (in) | |
| 0.000254 | decimeter (dm) | |
| 0.00025 | hand (hh) | |
| 0.000126263 | link (li) | |
| 0.0000833333 | foot (ft) | |
| 0.0000833332 | US survey foot (ftUS) | |
| 0.0000277778 | yard (yd) | |
| 0.0000254 | meter (m) | |
| 0.0000138889 | fathom (ftm) | |
| 0.00000505051 | rod (rd) | |
| 0.00000126263 | chain (ch) | |
| 1.37149e-07 | cable length (cb) | |
| 1.26263e-07 | furlong (fur) | |
| 2.54000e-08 | kilometer (km) | |
| 1.57828e-08 | mile (mi) | |
| 1.37149e-08 | nautical mile (nmi) | |
| 5.26094e-09 | league (lea) | |
| 2.54000e-11 | megameter (Mm) | |
| 3.98682e-12 | Earth radius (REarth) | |
| 8.47253e-14 | light-second (ls) | |
| 6.60772e-14 | lunar distance (LD) | |
| 3.65100e-14 | solar radius (Rsun) | |
| 1.41209e-15 | light-minute (lmin) | |
| 1.69789e-16 | astronomical unit (AU) | |
| 2.68478e-21 | light-year (ly) | |
| 8.23158e-22 | parsec (pc) | |
| 8.23158e-25 | kiloparsec (kpc) | |
| 8.23158e-28 | megaparsec (Mpc) | |
| 8.23158e-31 | gigaparsec (Gpc) |
Solvers that use length